In another thread, some readers started discussing the best single-game performance by a pitcher as measured by his combined WPA from both pithing and hitting.
One reader pointed out that Rick Wise, in his no-hit game, scored 0.376 WPA as a pitcher but also 0.202 as a batter thanks to his 2 home runs. That's a total of 0.578 on both sides of the ball.
On May 5, 1968, Catfish Hunter pitched a no-hitter too, earning 0.489 as a pitcher. He also drove in 3 of the A's 4 runs and scored .190 as a hitter, for a total of .679, beating out Wise easily.
There are actually lots of games that score higher, I think. For example, in this 1972 game, Claude Osteen pitched a 10-inning complete game for 0.284 WPA as a pitcher. He also had a double, single, and 3 RBI as a hitter and a whopping 0.660 WPA. That's a total of 0.944 for the game. Most of his teammates had negative WPA scores thanks to getting very few hits.
What other games can you find that score as high?