[Mick]

Ted Williams, Jimmy Foxx, Roy Campanella, Honus Wagner, Stan Musial.

228 of the 841 position players have 0.00 career ERAs.

Honus is the correct answer, having pitched 8 1/3 total innings over two appearances with zero earned runs.  Interestingly, he gave up seven unearned runs across those two appearances.

Ted Williams had a 4.50 ERA in his single, two-inning appearance.

Campanella, 5.28 ERA in his games.  Both were starts, and he went a combined 15 1/3rd innings and gave up 9 earned runs...but struck out 16.

Musial was actually signed as a pitcher out of high school. He'd struck out 13 adult batters in 6 innings as a 15 year old on a semipro team. In 1952, at the age of 31, he got into a game as a pitcher and threw at least one pitch, but did not give up a hit, walk or out...wiser heads prevailed and must have taken him off the mound.

Foxx pitched mainly in the last year of WWII when he was 37 years old.  He pitched in 10 games, started twice, finished the game eight times, had a 1.52 career ERA and a 1-0 record. Interestingly, he pitched 23 2/3 innings and only gave up 13 hits...but gave up 14 walks. Struck out 11, one intentional walk, hit one batter. 

Few of the Giants' stars or Hall of Famer position players ever pitched.  Mays, McCovey, Cepeda, Hart, Aurilia, Kent, neither Clark, neither Bonds, Posey, Crawford, Belt, Travis Jackson, haller, hiller, dietz, speier, thomson, thompson, irvin,  kept to the field. Buck Ewing, George Kelly, George Davis, Ward and Bresnahan were Giant HoF'ers who pitched in the 19th century. Technically speaking, Jesse Burkett was a terrible pitcher for the Giants in his rookie year, then went on to a HoF career as an outfielder for Cleveland and St. Louis.

38 total HoF position players risked injury by pitching (including Ruth, Ward and Gleason)

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Which MLB Hall of Famer played for the most teams?

[Mick]

Ted Williams, Jimmy Foxx, Roy Campanella, Honus Wagner, Stan Musial.

228 of the 841 position players have 0.00 career ERAs.

Honus is the correct answer, having pitched 8 1/3 total innings over two appearances with zero earned runs.  Interestingly, he gave up seven unearned runs across those two appearances.

Ted Williams had a 4.50 ERA in his single, two-inning appearance.

Campanella, 5.28 ERA in his games.  Both were starts, and he went a combined 15 1/3rd innings and gave up 9 earned runs...but struck out 16.

Musial was actually signed as a pitcher out of high school. He'd struck out 13 adult batters in 6 innings as a 15 year old on a semipro team. In 1952, at the age of 31, he got into a game as a pitcher and threw at least one pitch, but did not give up a hit, walk or out...wiser heads prevailed and must have taken him off the mound.

Foxx pitched mainly in the last year of WWII when he was 37 years old.  He pitched in 10 games, started twice, finished the game eight times, had a 1.52 career ERA and a 1-0 record. Interestingly, he pitched 23 2/3 innings and only gave up 13 hits...but gave up 14 walks. Struck out 11, one intentional walk, hit one batter. 

Few of the Giants' stars or Hall of Famer position players ever pitched.  Mays, McCovey, Cepeda, Hart, Aurilia, Kent, neither Clark, neither Bonds, Posey, Crawford, Belt, Travis Jackson, haller, hiller, dietz, speier, thomson, thompson, irvin,  kept to the field. Buck Ewing, George Kelly, George Davis, Ward and Bresnahan were Giant HoF'ers who pitched in the 19th century. Technically speaking, Jesse Burkett was a terrible pitcher for the Giants in his rookie year, then went on to a HoF career as an outfielder for Cleveland and St. Louis.

38 total HoF position players risked injury by pitching (including Ruth, Ward and Gleason)

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Which MLB Hall of Famer played for the most teams?