1973 National High School Baseball Championship

The 55th National High School Championship held from August 8 to August 22, 1973. It was won by Hiroshima Commercial High School of Hiroshima over Shizuoka High School of Shizuoka. Hiroshima had future NPB All-Star Mitsuo Tatsukawa.

Participating Teams

Prefecture	Team	Appearance		Prefecture	Team	Appearance
North Hokkaido	Asahikawa Ryukoku High School	1		Mie	Mie High School	4
South Hokkaido	Sapporo Commercial High School	5		Shiga	Ika High School	2
Aomori	Aomori Commercial High School	1		Kyoto	Kyoto Commercial High School	6
Iwate	Morioka Daisan High School	1		Nara	Tenri High School	5
Akita	Akita High School	14		Wakayama	Minoshima High School	2
Yamagata	Nihon University Yamagata Senior High School	3		Osaka	Hokuyo High School	2
Miyagi	Sendai Ikuei High School	3		Hyogo	Toyo University Himeji High School	3
Fukushima	Futaba High School	1		Okayama	Okayama Higashi Commercial High School	7
Ibaraki	Toride First High School	3		Tottori	Tottori Nishi High School	18
Tochigi	Sakushin Gakuin High School	4		Hiroshima	Hiroshima Commercial High School	12
Gunma	Maebashi Technical High School	2		Shimane	Hamada Business High School	1
Saitama	Kawagoe Technical High School	2		Yamaguchi	Hagi Commercial High School	1
Yamanashi	Kofu Technical High School	3		Kagawa	Takamatsu Commercial High School	12
Chiba	Choshi Commercial High School	7		Ehime	Imabari Nishi High School	4
Tokyo	Nihon University Daiichi High School	6		Tokushima	Naruto Technical High School	1
Kanagawa	Fujisawa Commercial High School	1		Kochi	Kochi Shogyo	10
Nagano	Maruko Jitsugyo High School	3		Fukuoka	Yanagawa Commercial High School	2
Niigata	Itoigawa Shoko High School	2		Saga	Karatsu Commercial High School	2
Toyama	Toyama Commercial High School	5		Nagasaki	Kaisei High School	10
Ishikawa	Kanazawa Municipal Technical High School	2		Kumamoto	Yatsushiro Higashi High School	2
Fukui	Fukui Commercial High School	2		Oita	Hita Forestry & Technical High School	1
Shizuoka	Shizuoka High School	16		Miyazaki	Takanabe High School	5
Aichi	Toho High School	7		Kagoshima	Kagoshima Jitsugyo High School	3
Gifu	Chukyo Commercial High School	1		Okinawa	Maehara High School	1

Results

Round	Date	Game	Winner	Score	Loser	Notes
1	August 8	Game 1	Fujisawa Commercial High School	5-2	Hagi Commercial High School
		Game 2	Chukyo Commercial High School	11-1	Ika High School
		Game 3	Nihon University Yamagata Senior High School	2-1	Kagoshima Jitsugyo High School
		Game 4	Takanabe High School	3-0	Kanazawa Municipal Technical High School
	August 9	Game 5	Hamada Business High School	1-0	Kofu Technical High School
		Game 6	Takamatsu Commercial High School	2-1	Toride First High School	11 innings
		Game 7	Sakushin Gakuin High School	2-1	Yanagawa Commercial High School	15 innings
		Game 8	Choshi Commercial High School	1-0	Okayama Higashi Commercial High School	12 innings
	August 10	Game 9	Kyoto Commercial High School	1-0	Sapporo Commercial High School	11 innings
		Game 10	Imabari Nishi High School	7-1	Nihon University Daiichi High School
		Game 11	Tenri High School	6-0	Aomori Commercial High School
		Game 12	Naruto Technical High School	13-3	Mie High School
	August 11	Game 13	Morioka Third High School	1-0	Yatsushiro Higashi High School	11 innings
		Game 14	Hiroshima Commercial High School	12-0	Futaba High School
		Game 15	Hita Forestry & Technical High School	1-0	Itoigawa Shoko High School
		Game 16	Maruko Jitsugyo High School	9-4	Minoshima High School
2	August 12	Game 17	Toyama Commercial High School	7-4	Karatsu Commercial High School
		Game 18	Fukui Commercial High School	8-0	Maebashi Technical High School
		Game 19	Kochi Commercial High School	5-3	Toho High School
		Game 20	Tottori Nishi High School	3-0	Sendai Ikuei High School
	August 13	Game 21	Hokuyo High School	1-0	Akita High School
		Game 22	Asahikawa Ryukoku High School	3-2	Toyo University Himeji High School
		Game 23	Shizuoka High School	10-0	Kaisei High School
		Game 24	Kawagoe Technical High School	7-0	Maehara High School
	August 14	Game 25	Hiroshima Commercial High School	3-0	Naruto Technical High School
		Game 26	Hita Forestry & Technical High School	3-0	Hamada Business High School
		Game 27	Imabari Nishi High School	5-0	Maruko Jitsugyo High School
		Game 28	Takamatsu Commercial High School	1-0	Kyoto Commercial High School
	August 16	Game 29	Morioka Third High School	1-0	Fujisawa Commercial High School
		Game 30	Takanabe High School	4-1	Nihon University Yamagata Senior High School
		Game 31	Choshi Commercial High School	1-0	Sakushin Gakuin High School	12 innings
		Game 32	Tenri High School	3-0	Chukyo Commercial High School
3	August 17	Game 33	Kawagoe Technical High School	7-2	Fukui Commercial High School
	August 18	Game 34	Shizuoka High School	7-0	Tenri High School
		Game 35	Kochi Commercial High School	2-1	Morioka Third High School	14 innings
		Game 36	Choshi Commercial High School	4-3	Takamatsu Commercial High School
	August 19	Game 37	Imabari Nishi High School	3-0	Asahikawa Ryukoku High School	10 innings
		Game 38	Hokuyo High School	1-0	Takanabe High School
		Game 39	Toyama Commercial High School	1-0	Tottori Nishi High School
		Game 40	Hiroshima Commercial High School	3-2	Hita Forestry & Technical High School
4	August 20	Game 41	Kawagoe Technical High School	6-2	Toyama Commercial High School
		Game 42	Hiroshima Commercial High School	7-2	Kochi Commercial High School
		Game 43	Imabari Nishi High School	6-2	Hokuyo High School
		Game 44	Shizuoka High School	5-3	Choshi Commercial High School
5	August 21	Game 45	Shizuoka High School	6-0	Imabari Nishi High School
		Game 46	Hiroshima Commercial High School	7-0	Kawagoe Technical High School
6	August 22	Game 47	Hiroshima Commercial High School	3-2	Shizuoka High School