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Single-Season Leaders & Records for Home Runs per 9 IP
Baseball Leaders & Baseball Records:
Single-Season
Career
Active
Progressive
Year-by-Year Top-Tens
Yearly League
+ - Indicates Hall of Famer. Bold indicates active player.
Statistic Description: 9 x HR / IP For recent years, leaders need 1 IP per team game played
Only players who finished in the top 40 for the majors in a season will appear on this list.
Leaders from the current season are only included for rate stats after July 1st.
For batting rate stats, generally a minimum of 3.1 Plate Appearances/G, 1.0 IP/G, 0.67 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), and 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1954, so all leaders are since 1954. Explanation of min. requirements
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
|---|---|---|---|---|
| 1. | Nick Altrock (29) | 0.0000 | 1906 | L |
| Red Ames (28) | 0.0000 | 1911 | R | |
| Jake Aydelott (22) | 0.0000 | 1884 | R | |
| Jim Bagby (28) | 0.0000 | 1918 | R | |
| Jersey Bakley (20) | 0.0000 | 1884 | R | |
| Hugh Bedient (23) | 0.0000 | 1913 | R | |
| Joe Blong (23) | 0.0000 | 1877 | R | |
| Bernie Boland (25) | 0.0000 | 1917 | R | |
| Howie Camnitz (25) | 0.0000 | 1907 | R | |
| Hal Carlson (25) | 0.0000 | 1917 | R | |
| Hal Carlson (27) | 0.0000 | 1919 | R | |
| Jack Chesbro+ (33) | 0.0000 | 1907 | R | |
| Eddie Cicotte (24) | 0.0000 | 1908 | R | |
| Eddie Cicotte (30) | 0.0000 | 1914 | R | |
| Jack Coombs (23) | 0.0000 | 1906 | R | |
| Jack Coombs (27) | 0.0000 | 1910 | R | |
| Frank Corridon (26) | 0.0000 | 1907 | R | |
| Frank Corridon (27) | 0.0000 | 1908 | R | |
| Frank Corridon (28) | 0.0000 | 1909 | R | |
| Candy Cummings+ (27) | 0.0000 | 1876 | R | |
| George Cunningham (23) | 0.0000 | 1918 | R | |
| Dave Davenport (28) | 0.0000 | 1918 | R | |
| Ren Deagle (25) | 0.0000 | 1883 | R | |
| Ren Deagle (26) | 0.0000 | 1884 | R | |
| Ed Doheny (28) | 0.0000 | 1902 | L | |
| Phil Douglas (29) | 0.0000 | 1919 | R | |
| Denny Driscoll (26) | 0.0000 | 1882 | L | |
| Cy Falkenberg (27) | 0.0000 | 1907 | R | |
| Cy Falkenberg (29) | 0.0000 | 1909 | R | |
| Brownie Foreman (19) | 0.0000 | 1895 | L | |
| Rube Foster (28) | 0.0000 | 1916 | R | |
| John Fox (22) | 0.0000 | 1881 | ||
| Harry Gaspar (26) | 0.0000 | 1909 | R | |
| Vean Gregg (29) | 0.0000 | 1914 | L | |
| Frank Hankinson (23) | 0.0000 | 1879 | R | |
| Slim Harriss (28) | 0.0000 | 1926 | R | |
| Guy Hecker (26) | 0.0000 | 1882 | R | |
| Charlie Hodnett (23) | 0.0000 | 1884 | ||
| Patrick Horan | 0.0000 | 1884 | R | |
| Walter Johnson+ (20) | 0.0000 | 1908 | R | |
| Walter Johnson+ (28) | 0.0000 | 1916 | R | |
| Walter Johnson+ (31) | 0.0000 | 1919 | R | |
| Addie Joss+ (24) | 0.0000 | 1904 | R | |
| Addie Joss+ (29) | 0.0000 | 1909 | R | |
| Rudy Kallio (25) | 0.0000 | 1918 | R | |
| Ed Karger (23) | 0.0000 | 1906 | L | |
| Tim Keefe+ (23) | 0.0000 | 1880 | R | |
| Ed Killian (27) | 0.0000 | 1904 | L | |
| Ed Killian (28) | 0.0000 | 1905 | L | |
| John Kirby (20) | 0.0000 | 1885 | R | |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| Ed Klepfer (29) | 0.0000 | 1917 | R | |
| Lon Knight (23) | 0.0000 | 1876 | R | |
| Dutch Leonard (21) | 0.0000 | 1913 | L | |
| Carl Lundgren (27) | 0.0000 | 1907 | R | |
| John Malarkey (30) | 0.0000 | 1902 | R | |
| Bobby Mathews (25) | 0.0000 | 1877 | R | |
| Jim McCormick (21) | 0.0000 | 1878 | R | |
| Bill McGunnigle (24) | 0.0000 | 1879 | R | |
| Bobby Mitchell (21) | 0.0000 | 1877 | L | |
| Willie Mitchell (22) | 0.0000 | 1912 | L | |
| Earl Moore (25) | 0.0000 | 1903 | R | |
| Cy Morgan (31) | 0.0000 | 1910 | R | |
| Cy Morgan (32) | 0.0000 | 1911 | R | |
| Tricky Nichols (27) | 0.0000 | 1878 | R | |
| Deacon Phillippe (33) | 0.0000 | 1905 | R | |
| Billy Rhines (29) | 0.0000 | 1898 | R | |
| Bob Rhoads (27) | 0.0000 | 1907 | R | |
| Jack Rowan (23) | 0.0000 | 1909 | R | |
| Reb Russell (26) | 0.0000 | 1915 | L | |
| Babe Ruth+ (21) | 0.0000 | 1916 | L | |
| Harry Salisbury (24) | 0.0000 | 1879 | ||
| Jim Scott (21) | 0.0000 | 1909 | R | |
| Ed Siever (27) | 0.0000 | 1902 | L | |
| Charlie Smith (27) | 0.0000 | 1907 | R | |
| Frank Smith (24) | 0.0000 | 1904 | R | |
| Frank Smith (25) | 0.0000 | 1905 | R | |
| Allan Sothoron (28) | 0.0000 | 1921 | R | |
| Bill Steen (26) | 0.0000 | 1914 | R | |
| Elmer Stricklett (28) | 0.0000 | 1905 | R | |
| Jesse Tannehill (27) | 0.0000 | 1902 | L | |
| Ben Tincup (21) | 0.0000 | 1914 | R | |
| John Valentine (27) | 0.0000 | 1883 | ||
| Rube Vickers (30) | 0.0000 | 1908 | R | |
| Rube Waddell+ (31) | 0.0000 | 1908 | L | |
| Ed Walsh+ (28) | 0.0000 | 1909 | R | |
| Mule Watson (21) | 0.0000 | 1918 | R | |
| Jake Weimer (32) | 0.0000 | 1906 | L | |
| Ed Willett (29) | 0.0000 | 1913 | R | |
| Vic Willis+ (30) | 0.0000 | 1906 | R | |
| Cy Young+ (43) | 0.0000 | 1910 | R | |
| 91. | Tommy Bond (24) | 0.0183 | 1880 | R |
| 92. | Will White (23) | 0.0192 | 1878 | R |
| 93. | George Mullin (23) | 0.0235 | 1904 | R |
| 94. | Walter Johnson+ (22) | 0.0243 | 1910 | R |
| 95. | Frank Smith (29) | 0.0247 | 1909 | R |
| 96. | George McQuillan (23) | 0.0250 | 1908 | R |
| 97. | George Mullin (26) | 0.0252 | 1907 | R |
| 98. | Bill Donovan (24) | 0.0256 | 1901 | R |
| Scott Stratton (22) | 0.0256 | 1892 | R | |
| 100. | Mike Smith (20) | 0.0258 | 1888 | L |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| 101. | The Only Nolan (20) | 0.0259 | 1878 | R |
| 102. | Mordecai Brown+ (32) | 0.0263 | 1909 | R |
| Jim McCormick (26) | 0.0263 | 1883 | R | |
| 104. | Joe McGinnity+ (35) | 0.0265 | 1906 | R |
| 105. | Walter Johnson+ (27) | 0.0267 | 1915 | R |
| 106. | Togie Pittinger (32) | 0.0268 | 1904 | R |
| 107. | Harry Salisbury (27) | 0.0269 | 1882 | |
| 108. | Nap Rucker (23) | 0.0270 | 1908 | L |
| 109. | Roscoe Miller (24) | 0.0271 | 1901 | R |
| Scott Perry (27) | 0.0271 | 1918 | R | |
| 111. | Jim McCormick (23) | 0.0274 | 1880 | R |
| 112. | Clark Griffith+ (28) | 0.0276 | 1898 | R |
| 113. | Harry Howell (31) | 0.0277 | 1908 | R |
| Old Hoss Radbourn+ (26) | 0.0277 | 1881 | R | |
| 115. | Mordecai Brown+ (31) | 0.0288 | 1908 | R |
| 116. | Hooks Dauss (25) | 0.0291 | 1915 | R |
| Bill Hoffer (25) | 0.0291 | 1896 | R | |
| 118. | Jake Weimer (30) | 0.0293 | 1904 | L |
| 119. | George Mullin (28) | 0.0296 | 1909 | R |
| 120. | Eppa Rixey+ (30) | 0.0299 | 1921 | L |
| 121. | Harry Howell (27) | 0.0300 | 1904 | R |
| 122. | Cy Falkenberg (26) | 0.0301 | 1906 | R |
| Sad Sam Jones (28) | 0.0301 | 1921 | R | |
| Carl Weilman (24) | 0.0301 | 1914 | L | |
| Cy Young+ (41) | 0.0301 | 1908 | R | |
| 126. | Bill Donovan (25) | 0.0302 | 1902 | R |
| 127. | Walter Johnson+ (21) | 0.0304 | 1909 | R |
| 128. | Hippo Vaughn (26) | 0.0306 | 1914 | L |
| 129. | Ed Reulbach (22) | 0.0309 | 1905 | R |
| 130. | George Mullin (27) | 0.0310 | 1908 | R |
| 131. | Carl Mays (25) | 0.0311 | 1917 | R |
| 132. | Adonis Terry (21) | 0.0312 | 1886 | R |
| 133. | Jack Chesbro+ (28) | 0.0314 | 1902 | R |
| 134. | Lefty Leifield (23) | 0.0315 | 1907 | L |
| 135. | Orval Overall (28) | 0.0316 | 1909 | R |
| 136. | Howie Camnitz (27) | 0.0318 | 1909 | R |
| 137. | Eppa Rixey+ (26) | 0.0320 | 1917 | L |
| 138. | Glenn Liebhardt (24) | 0.0321 | 1907 | R |
| 139. | Ed Walsh+ (25) | 0.0323 | 1906 | R |
| 140. | Mordecai Brown+ (29) | 0.0325 | 1906 | R |
| Harry Howell (29) | 0.0325 | 1906 | R | |
| 142. | Weldon Wyckoff (24) | 0.0326 | 1915 | R |
| 143. | Ed Siever (32) | 0.0328 | 1907 | L |
| 144. | Barney Pelty (26) | 0.0330 | 1907 | R |
| Rube Waddell+ (29) | 0.0330 | 1906 | L | |
| Stan Yerkes (27) | 0.0330 | 1902 | R | |
| 147. | Deacon Phillippe (30) | 0.0331 | 1902 | R |
| 148. | Chick Fraser (25) | 0.0333 | 1899 | R |
| 149. | Lefty Tyler (28) | 0.0334 | 1918 | L |
| 150. | Eddie Plank+ (39) | 0.0335 | 1915 | L |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| 151. | Jim Shaw (23) | 0.0338 | 1917 | R |
| 152. | Andy Coakley (24) | 0.0339 | 1907 | R |
| Eddie Plank+ (33) | 0.0339 | 1909 | L | |
| 154. | Reb Russell (27) | 0.0340 | 1916 | L |
| 155. | George Bell (32) | 0.0341 | 1907 | R |
| 156. | Babe Adams (37) | 0.0342 | 1919 | R |
| Pop Williams (28) | 0.0342 | 1902 | L | |
| 158. | Dory Dean (23) | 0.0343 | 1876 | R |
| Ed Reulbach (26) | 0.0343 | 1909 | R | |
| 160. | George Kaiserling (22) | 0.0344 | 1915 | R |
| 161. | Barney Pelty (25) | 0.0345 | 1906 | R |
| 162. | Howie Camnitz (28) | 0.0346 | 1910 | R |
| 163. | Jerry Nops (24) | 0.0347 | 1899 | L |
| Eddie Plank+ (36) | 0.0347 | 1912 | L | |
| 165. | Bill Bernhard (35) | 0.0352 | 1906 | R |
| Jack Powell (33) | 0.0352 | 1908 | R | |
| 167. | Jack Pfiester (30) | 0.0357 | 1908 | L |
| Jesse Tannehill (26) | 0.0357 | 1901 | L | |
| 169. | Terry Larkin (21) | 0.0359 | 1877 | R |
| 170. | Chief Bender+ (25) | 0.0360 | 1909 | R |
| Chief Bender+ (26) | 0.0360 | 1910 | R | |
| Grover Lowdermilk (30) | 0.0360 | 1915 | R | |
| Jake Weimer (31) | 0.0360 | 1905 | L | |
| 174. | Red Faber+ (28) | 0.0363 | 1917 | R |
| 175. | George Kahler (22) | 0.0365 | 1912 | R |
| 176. | Stan Coveleski+ (36) | 0.0367 | 1926 | R |
| 177. | Ray Collins (23) | 0.0368 | 1910 | L |
| Eddie Plank+ (32) | 0.0368 | 1908 | L | |
| 179. | Harry Harper (23) | 0.0369 | 1918 | L |
| 180. | Jack Warhop (25) | 0.0370 | 1910 | R |
| 181. | Jean Dubuc (24) | 0.0371 | 1913 | R |
| Dick Rudolph (29) | 0.0371 | 1917 | R | |
| Dutch Ruether (25) | 0.0371 | 1919 | L | |
| 184. | Red Donahue (33) | 0.0373 | 1906 | R |
| 185. | Jack Powell (34) | 0.0377 | 1909 | R |
| Lefty Tyler (27) | 0.0377 | 1917 | L | |
| 187. | Fred Beebe (27) | 0.0378 | 1907 | R |
| Curry Foley (24) | 0.0378 | 1880 | L | |
| 189. | Chick Fraser (32) | 0.0381 | 1906 | R |
| Bob Harmon (22) | 0.0381 | 1910 | R | |
| Ham Iburg (28) | 0.0381 | 1902 | R | |
| Willie Mitchell (25) | 0.0381 | 1915 | L | |
| 193. | Ed Walsh+ (27) | 0.0388 | 1908 | R |
| 194. | Elmer Stricklett (30) | 0.0392 | 1907 | R |
| 195. | Mal Eason (27) | 0.0396 | 1906 | R |
| 196. | Ernie Shore (26) | 0.0397 | 1917 | R |
| 197. | Ernie Shore (25) | 0.0399 | 1916 | R |
| 198. | Win Kellum (28) | 0.0401 | 1904 | L |
| 199. | Frank Miller (31) | 0.0402 | 1917 | R |
| 200. | Ed Doheny (29) | 0.0404 | 1903 | L |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| Mike Lynch (24) | 0.0404 | 1904 | R | |
| Fred Toney (26) | 0.0404 | 1915 | R | |
| 203. | Gene Krapp (24) | 0.0405 | 1911 | R |
| 204. | Bob Steele (23) | 0.0406 | 1917 | L |
| Hippo Vaughn (22) | 0.0406 | 1910 | L | |
| 206. | Johnny Lush (23) | 0.0407 | 1909 | L |
| 207. | Rube Waddell+ (32) | 0.0408 | 1909 | L |
| 208. | Mike O'Neill (26) | 0.0409 | 1904 | L |
| 209. | Chief Bender+ (23) | 0.0410 | 1907 | R |
| 210. | George Baumgardner (20) | 0.0412 | 1912 | R |
| Bob Ewing (36) | 0.0412 | 1909 | R | |
| Lefty Leifield (24) | 0.0412 | 1908 | L | |
| 213. | Hod Eller (23) | 0.0413 | 1918 | R |
| Dolly Gray (30) | 0.0413 | 1909 | L | |
| 215. | Bob Groom (31) | 0.0414 | 1916 | R |
| Doc Scanlan (29) | 0.0414 | 1910 | R | |
| 217. | Willie Mitchell (23) | 0.0415 | 1913 | L |
| 218. | Guy Morton (25) | 0.0419 | 1918 | R |
| 219. | Jimmy Dygert (21) | 0.0421 | 1906 | R |
| Otto Hess (26) | 0.0421 | 1905 | L | |
| 221. | Ed Doheny (24) | 0.0423 | 1898 | L |
| 222. | Mordecai Brown+ (27) | 0.0424 | 1904 | R |
| 223. | Eddie Plank+ (30) | 0.0425 | 1906 | L |
| 224. | Doc Ayers (24) | 0.0426 | 1915 | R |
| 225. | Tom Hughes (28) | 0.0427 | 1907 | R |
| 226. | Ray Keating (20) | 0.0429 | 1914 | R |
| 227. | Harry Howell (22) | 0.0430 | 1899 | R |
| 228. | Dan Marion (25) | 0.0432 | 1915 | R |
| 229. | Cecil Ferguson (24) | 0.0433 | 1908 | R |
| Bert Gallia (25) | 0.0433 | 1917 | R | |
| 231. | Jim Devlin (27) | 0.0434 | 1876 | R |
| 232. | Red Ames (35) | 0.0435 | 1918 | R |
| 233. | Jack Coombs (26) | 0.0438 | 1909 | R |
| Red Faber+ (27) | 0.0438 | 1916 | R | |
| 235. | Bill Hogg (23) | 0.0439 | 1905 | R |
| 236. | Bernie Boland (26) | 0.0441 | 1918 | R |
| Tommy Bond (20) | 0.0441 | 1876 | R | |
| Elmer Knetzer (25) | 0.0441 | 1911 | R | |
| 239. | Chief Bender+ (20) | 0.0442 | 1904 | R |
| 240. | Red Ames (23) | 0.0443 | 1906 | R |
| 241. | Joe Boehling (25) | 0.0449 | 1916 | L |
| Tully Sparks (29) | 0.0449 | 1904 | R | |
| 243. | Heinie Berger (26) | 0.0452 | 1908 | R |
| Ned Garvin (25) | 0.0452 | 1899 | R | |
| 245. | Pud Galvin+ (22) | 0.0455 | 1879 | R |
| Blondie Purcell (25) | 0.0455 | 1879 | R | |
| 247. | Jack Manning (22) | 0.0456 | 1876 | R |
| Jock Menefee (34) | 0.0456 | 1902 | R | |
| 249. | Jack Pfiester (31) | 0.0458 | 1909 | L |
| 250. | Blondie Purcell (26) | 0.0459 | 1880 | R |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| Toad Ramsey (21) | 0.0459 | 1886 | L | |
| 252. | Jack Coombs (32) | 0.0460 | 1915 | R |
| 253. | Ray Collins (24) | 0.0462 | 1911 | L |
| Bobby Mitchell (23) | 0.0462 | 1879 | L | |
| Jack Pfiester (29) | 0.0462 | 1907 | L | |
| 256. | Ewell Blackwell (23) | 0.0463 | 1946 | R |
| 257. | Jumbo McGinnis (28) | 0.0464 | 1882 | |
| Steve Toole (28) | 0.0464 | 1887 | L | |
| 259. | Carl Lundgren (23) | 0.0466 | 1903 | R |
| 260. | Sam Leever (36) | 0.0467 | 1908 | R |
| 261. | Ed Reulbach (24) | 0.0469 | 1907 | R |
| 262. | Sam Weaver (22) | 0.0470 | 1878 | R |
| 263. | George Bradley (23) | 0.0471 | 1876 | R |
| 264. | Clarence Currie (23) | 0.0474 | 1902 | R |
| 265. | Reb Russell (28) | 0.0475 | 1917 | L |
| 266. | Pink Hawley (23) | 0.0476 | 1896 | R |
| 267. | Phil Douglas (25) | 0.0478 | 1915 | R |
| 268. | Rube Melton (27) | 0.0480 | 1944 | R |
| 269. | Eddie Cicotte (32) | 0.0481 | 1916 | R |
| 270. | Walter Johnson+ (24) | 0.0488 | 1912 | R |
| Fred Olmsted (28) | 0.0488 | 1910 | R | |
| 272. | Sad Sam Jones (25) | 0.0489 | 1918 | R |
| 273. | Henry Boyle (24) | 0.0491 | 1885 | R |
| Ray Caldwell (24) | 0.0491 | 1912 | R | |
| 275. | Amos Rusie+ (19) | 0.0492 | 1890 | R |
| 276. | Frank Shellenback (19) | 0.0493 | 1918 | R |
| 277. | Jim McCormick (22) | 0.0494 | 1879 | R |
| 278. | Barney Wolfe (29) | 0.0495 | 1905 | R |
| 279. | Byron Houck (20) | 0.0498 | 1912 | R |
| 280. | Harry Harper (22) | 0.0502 | 1917 | L |
| 281. | Casey Patten (30) | 0.0503 | 1904 | L |
| 282. | Eddie Plank+ (28) | 0.0504 | 1904 | L |
| Frank Smith (31) | 0.0504 | 1911 | R | |
| 284. | Doc White (30) | 0.0507 | 1909 | L |
| 285. | Willie Mitchell (21) | 0.0508 | 1911 | L |
| 286. | George Pierce (27) | 0.0511 | 1915 | L |
| 287. | Bob Rhoads (24) | 0.0513 | 1904 | R |
| 288. | Tricky Nichols (26) | 0.0514 | 1877 | R |
| 289. | Tex Pruiett (24) | 0.0518 | 1907 | R |
| 290. | Foghorn Bradley (20) | 0.0519 | 1876 | R |
| Eddie Cicotte (33) | 0.0519 | 1917 | R | |
| Ed Killian (32) | 0.0519 | 1909 | L | |
| Ed Reulbach (27) | 0.0519 | 1910 | R | |
| 294. | Dave Danforth (27) | 0.0520 | 1917 | L |
| 295. | Doc White (33) | 0.0523 | 1912 | L |
| Smoky Joe Wood (22) | 0.0523 | 1912 | R | |
| 297. | Babe Adams (40) | 0.0525 | 1922 | R |
| 298. | Chief Bender+ (28) | 0.0526 | 1912 | R |
| Dummy Taylor (32) | 0.0526 | 1907 | R | |
| 300. | Jean Dubuc (27) | 0.0528 | 1916 | R |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| Frank Miller (32) | 0.0528 | 1918 | R | |
| 302. | Bill Sherdel (23) | 0.0529 | 1920 | L |
| Tully Sparks (24) | 0.0529 | 1899 | R | |
| 304. | Al Orth (33) | 0.0531 | 1906 | R |
| 305. | Erv Kantlehner (23) | 0.0533 | 1916 | L |
| 306. | Buttons Briggs (29) | 0.0536 | 1905 | R |
| 307. | Guy Hecker (28) | 0.0537 | 1884 | R |
| 308. | Frank Owen (23) | 0.0538 | 1903 | R |
| 309. | Jack Taylor (28) | 0.0539 | 1902 | R |
| 310. | Ernie Koob (23) | 0.0540 | 1916 | L |
| Deacon Phillippe (32) | 0.0540 | 1904 | R | |
| Ralph Works (24) | 0.0540 | 1912 | R | |
| 313. | Bob Ewing (34) | 0.0541 | 1907 | R |
| Babe Ruth+ (23) | 0.0541 | 1918 | L | |
| 315. | Bill Bernhard (32) | 0.0543 | 1903 | R |
| 316. | Lee Meadows (23) | 0.0544 | 1918 | R |
| 317. | Marc Hall (25) | 0.0545 | 1913 | R |
| Roy Patterson (27) | 0.0545 | 1904 | R | |
| Monte Ward+ (21) | 0.0545 | 1881 | R | |
| 320. | George Derby (23) | 0.0546 | 1881 | R |
| 321. | Jesse Tannehill (23) | 0.0551 | 1898 | L |
| 322. | Walter Johnson+ (30) | 0.0552 | 1918 | R |
| Erv Kantlehner (22) | 0.0552 | 1915 | L | |
| Babe Ruth+ (22) | 0.0552 | 1917 | L | |
| 325. | Jack Chesbro+ (32) | 0.0554 | 1906 | R |
| Addie Joss+ (28) | 0.0554 | 1908 | R | |
| 327. | Bugs Raymond (26) | 0.0555 | 1908 | R |
| 328. | Fred Anderson (31) | 0.0556 | 1917 | R |
| 329. | Curry Foley (23) | 0.0557 | 1879 | L |
| Harry Howell (28) | 0.0557 | 1905 | R | |
| 331. | Mike Golden (26) | 0.0559 | 1878 | R |
| Dolf Luque (32) | 0.0559 | 1923 | R | |
| 333. | Bob Caruthers (21) | 0.0560 | 1885 | R |
| Al Mays (23) | 0.0560 | 1888 | ||
| Smoky Joe Wood (19) | 0.0560 | 1909 | R | |
| 336. | Noodles Hahn (23) | 0.0561 | 1902 | L |
| Barney Wolfe (28) | 0.0561 | 1904 | R | |
| 338. | Socks Seibold (21) | 0.0563 | 1917 | R |
| Will White (27) | 0.0563 | 1882 | R | |
| 340. | Larry Cheney (29) | 0.0568 | 1915 | R |
| Reb Russell (24) | 0.0568 | 1913 | L | |
| 342. | Ted Breitenstein (29) | 0.0570 | 1898 | L |
| 343. | Jack Jones (22) | 0.0571 | 1883 | R |
| Frank Owen (24) | 0.0571 | 1904 | R | |
| Lew Richie (24) | 0.0571 | 1908 | R | |
| 346. | Smoky Joe Wood (25) | 0.0572 | 1915 | R |
| 347. | Ed Karger (24) | 0.0573 | 1907 | L |
| Ed Killian (30) | 0.0573 | 1907 | L | |
| 349. | Frank Smith (30) | 0.0574 | 1910 | R |
| 350. | Joe Corbett (21) | 0.0575 | 1897 | R |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| 351. | Harry Coveleski (29) | 0.0576 | 1915 | L |
| Jim Scott (25) | 0.0576 | 1913 | R | |
| Jack Taylor (29) | 0.0576 | 1903 | R | |
| 354. | Frank Corridon (29) | 0.0577 | 1910 | R |
| Roy Sanders (25) | 0.0577 | 1918 | R | |
| 356. | Stan Coveleski+ (28) | 0.0579 | 1918 | R |
| Carl Druhot (24) | 0.0579 | 1906 | L | |
| 358. | George Kahler (21) | 0.0583 | 1911 | R |
| 359. | Joe Benz (32) | 0.0584 | 1918 | R |
| Lew Moren (24) | 0.0584 | 1908 | R | |
| 361. | Nick Altrock (27) | 0.0586 | 1904 | L |
| Tony Mullane (24) | 0.0586 | 1883 | ||
| 363. | Tony Mullane (23) | 0.0587 | 1882 | |
| 364. | Pete Dowling (24) | 0.0588 | 1901 | L |
| Wiley Piatt (23) | 0.0588 | 1898 | L | |
| 366. | Harry McCormick (23) | 0.0590 | 1879 | R |
| 367. | Bob Wicker (24) | 0.0591 | 1902 | R |
| Vic Willis+ (32) | 0.0591 | 1908 | R | |
| 369. | Rube Benton (22) | 0.0596 | 1912 | L |
| 370. | Ned Garvin (29) | 0.0604 | 1903 | R |
| 371. | Frank Smith (28) | 0.0605 | 1908 | R |
| 372. | Barney Wolfe (27) | 0.0607 | 1903 | R |
| 373. | Red Donahue (28) | 0.0609 | 1901 | R |
| Hardie Henderson (23) | 0.0609 | 1886 | R | |
| 375. | Bill Reidy (29) | 0.0612 | 1903 | R |
| 376. | Jack Harper (26) | 0.0613 | 1904 | R |
| 377. | Carl Mays (26) | 0.0614 | 1918 | R |
| 378. | Pete Meegan (22) | 0.0616 | 1885 | |
| 379. | Elmer Stricklett (29) | 0.0617 | 1906 | R |
| 380. | Lefty Tyler (23) | 0.0620 | 1913 | L |
| 381. | Pud Galvin+ (29) | 0.0621 | 1886 | R |
| 382. | Fred Glade (28) | 0.0623 | 1904 | R |
| 383. | Scott Stratton (20) | 0.0626 | 1890 | R |
| 384. | Eppa Rixey+ (25) | 0.0627 | 1916 | L |
| 385. | Ed Morris (21) | 0.0628 | 1884 | L |
| 386. | Stan Coveleski+ (29) | 0.0629 | 1919 | R |
| Billy Rhines (27) | 0.0629 | 1896 | R | |
| 388. | Vean Gregg (28) | 0.0630 | 1913 | L |
| 389. | Rube Waddell+ (30) | 0.0632 | 1907 | L |
| 390. | Sam Leever (31) | 0.0633 | 1903 | R |
| Art Nehf (25) | 0.0633 | 1918 | L | |
| 392. | Jesse Tannehill (22) | 0.0634 | 1897 | L |
| 393. | Jim Hughey (29) | 0.0635 | 1898 | R |
| 394. | Casey Patten (32) | 0.0637 | 1906 | L |
| Perry Werden (22) | 0.0637 | 1884 | R | |
| 396. | Will Sawyer (18) | 0.0638 | 1883 | L |
| 397. | Bobby Mathews (33) | 0.0639 | 1885 | R |
| Ed Walsh+ (26) | 0.0639 | 1907 | R | |
| 399. | Bill Donovan (28) | 0.0641 | 1905 | R |
| Johnny Lush (20) | 0.0641 | 1906 | L | |
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| 401. | Doc McJames (21) | 0.0642 | 1896 | R |
| 402. | Jim Whitney (24) | 0.0643 | 1882 | R |
| 403. | Hugh Daily (39) | 0.0644 | 1887 | R |
| Jim Devlin (28) | 0.0644 | 1877 | R | |
| Art Fromme (25) | 0.0644 | 1909 | R | |
| 406. | Dave Danforth (28) | 0.0647 | 1918 | L |
| 407. | Ed Doheny (25) | 0.0648 | 1899 | L |
| 408. | Red Donahue (31) | 0.0650 | 1904 | R |
| 409. | Allan Sothoron (24) | 0.0651 | 1917 | R |
| 410. | Cy Falkenberg (33) | 0.0652 | 1913 | R |
| Harry McIntire (27) | 0.0652 | 1906 | R | |
| 412. | Bill Duggleby (28) | 0.0653 | 1902 | R |
| Smoky Joe Wood (21) | 0.0653 | 1911 | R | |
| 414. | Christy Mathewson+ (28) | 0.0654 | 1909 | R |
| 415. | Jimmy Callahan (24) | 0.0656 | 1898 | R |
| 416. | Dick Rudolph (31) | 0.0658 | 1919 | R |
| 417. | Wilbur Cooper (26) | 0.0659 | 1918 | L |
| Roy Evans (28) | 0.0659 | 1902 | R | |
| 419. | Jim Bagby (26) | 0.0660 | 1916 | R |
| 420. | Cy Barger (25) | 0.0663 | 1910 | R |
| Bob Emslie (26) | 0.0663 | 1885 | R | |
| 422. | Bob Rhoads (28) | 0.0667 | 1908 | R |
| 423. | John Ewing (28) | 0.0668 | 1891 | R |
| Addie Joss+ (22) | 0.0668 | 1902 | R | |
| 425. | Eddie Cicotte (29) | 0.0672 | 1913 | R |
| Earl Moseley (27) | 0.0672 | 1915 | R | |
| 427. | Sam Weaver (27) | 0.0674 | 1883 | R |
| 428. | Eddie Cicotte (34) | 0.0677 | 1918 | R |
| 429. | Dutch Ruether (26) | 0.0678 | 1920 | L |
| 430. | Tully Sparks (32) | 0.0679 | 1907 | R |
| 431. | Doc Newton (24) | 0.0681 | 1902 | L |
| 432. | Bill Vinton (20) | 0.0682 | 1885 | R |
| 433. | Jim McCormick (24) | 0.0684 | 1881 | R |
| Happy Townsend (26) | 0.0684 | 1905 | R | |
| 435. | Red Ames (22) | 0.0685 | 1905 | R |
| 436. | Glenn Liebhardt (25) | 0.0687 | 1908 | R |
| 437. | Jimmy Dygert (22) | 0.0688 | 1907 | R |
| 438. | Joe Lake (29) | 0.0689 | 1910 | R |
| 439. | Bob Groom (24) | 0.0691 | 1909 | R |
| Doc White (26) | 0.0691 | 1905 | L | |
| 441. | Bert Gallia (23) | 0.0693 | 1915 | R |
| Tully Sparks (30) | 0.0693 | 1905 | R | |
| 443. | Ed Seward (21) | 0.0694 | 1888 | R |
| 444. | Bob Caruthers (22) | 0.0697 | 1886 | R |
| 445. | Harry McCormick (27) | 0.0699 | 1883 | R |
| 446. | Eddie Plank+ (35) | 0.0701 | 1911 | L |
| George Winter (29) | 0.0701 | 1907 | R | |
| 448. | Bill Doak (23) | 0.0703 | 1914 | R |
| 449. | Andy Coakley (22) | 0.0706 | 1905 | R |
| Jumbo McGinnis (29) | 0.0706 | 1883 | ||
| Rank | Player (age that year) | Home Runs per 9 IP | Year | Throws |
| 451. | Terry Larkin (22) | 0.0711 | 1878 | R |
| Sam Leever (32) | 0.0711 | 1904 | R | |
| 453. | Carl Weilman (23) | 0.0715 | 1913 | L |
| 454. | Pete Alexander+ (28) | 0.0717 | 1915 | R |
| 455. | Jean Dubuc (23) | 0.0720 | 1912 | R |
| Al Orth (25) | 0.0720 | 1898 | R | |
| 457. | Earl Hamilton (20) | 0.0721 | 1912 | L |
| 458. | Bob Spade (31) | 0.0722 | 1908 | R |
| 459. | Al Orth (34) | 0.0724 | 1907 | R |
| 460. | Walter Johnson+ (26) | 0.0726 | 1914 | R |
| 461. | Heinie Berger (27) | 0.0729 | 1909 | R |
| 462. | Pat Ragan (29) | 0.0730 | 1915 | R |
| Adonis Terry (25) | 0.0730 | 1890 | R | |
| 464. | Bob Black (21) | 0.0732 | 1884 | R |
| Mickey Welch+ (25) | 0.0732 | 1885 | R | |
| 466. | Vean Gregg (26) | 0.0736 | 1911 | L |
| 467. | Joe McGinnity+ (28) | 0.0737 | 1899 | R |
| 468. | Red Ames (26) | 0.0738 | 1909 | R |
| Jack Powell (31) | 0.0738 | 1906 | R | |
| 470. | Jack Warhop (24) | 0.0740 | 1909 | R |
| 471. | Jeff Tesreau (24) | 0.0741 | 1912 | R |
| 472. | Bill Donovan (31) | 0.0742 | 1908 | R |
| 473. | Carl Lundgren (24) | 0.0744 | 1904 | R |
| 474. | Jim Shaw (24) | 0.0746 | 1918 | R |
| 475. | King Cole (24) | 0.0751 | 1910 | R |
| 476. | Hooks Dauss (26) | 0.0754 | 1916 | R |
| 477. | Buster Brown (24) | 0.0755 | 1906 | R |
| 478. | Jim Brown (23) | 0.0756 | 1884 | |
| Monte Ward+ (20) | 0.0756 | 1880 | R | |
| 480. | Rube Benton (25) | 0.0759 | 1915 | L |
| Pud Galvin+ (24) | 0.0759 | 1881 | R | |
| 482. | Chief Bender+ (29) | 0.0761 | 1913 | R |
| Doc White (22) | 0.0761 | 1901 | L | |
| Doc White (31) | 0.0761 | 1910 | L | |
| 485. | Mordecai Brown+ (38) | 0.0762 | 1915 | R |
| Bob Shawkey (26) | 0.0762 | 1917 | R | |
| 487. | Eddie Plank+ (40) | 0.0764 | 1916 | L |
| Jack Quinn (26) | 0.0764 | 1910 | R | |
| 489. | Charlie Smith (26) | 0.0765 | 1906 | R |
| 490. | Monte Ward+ (19) | 0.0767 | 1879 | R |
| 491. | Guy Hecker (27) | 0.0768 | 1883 | R |
| 492. | George Zettlein (31) | 0.0769 | 1876 | R |
| 493. | Mordecai Brown+ (30) | 0.0773 | 1907 | R |
| Claude Hendrix (29) | 0.0773 | 1918 | R | |
| 495. | Sam Leever (28) | 0.0774 | 1900 | R |
| 496. | Ed Morris (22) | 0.0775 | 1885 | L |
| 497. | Jim McElroy (21) | 0.0776 | 1884 | |
| 498. | Phil Knell (26) | 0.0779 | 1891 | L |
| Eddie Plank+ (29) | 0.0779 | 1905 | L | |
| 500. | Fred Beebe (26) | 0.0780 | 1906 | R |
Baseball Leaders & Baseball Records:
Single-Season
Career
Active
Progressive
Year-by-Year Top-Tens
Yearly League
Note that seasons prior to 1876 are not included in single-season marks, but are included in career marks.
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