Harry Kelley vs. Roy Mahaffey: Head-to-Head Stats Comparison

Compare players and teams or see head to head results between teams, players, player vs. team, or batter vs. pitcher. • Tutorial VideoSample SearchesData Coverage
THIS QUESTION WAS ANSWERED USING
Stathead Baseball Logo POWERED BY Baseball Reference Logo
Your All Access Pass to the Baseball Database Go beyond the basics. Become a Stathead
Start Your FREE Trial
Show Criteria
Share Results

Search Criteria

Seasons
Player 1
Javascript is required for the selection of a player.
Choice is: Harry Kelley 
Player 2
Javascript is required for the selection of a player.
Choice is: Roy Mahaffey 
Player 3
Javascript is required for the selection of a player.
Player 4
Javascript is required for the selection of a player.
Player 5
Javascript is required for the selection of a player.
Player 6
Javascript is required for the selection of a player.
Team 1
Team 2

You have edited your search criteria

or keep editing your search

clear changes

Fetching Results

Stathead spinner
Overall Stats
 4.0 
 224 
 129 
 1056.0 
 67-49 
 5 
 5.01 
 90 
 365 
 7.7 
 452 
 9.5 
WAR
G
GS
IP
W-L
SV
ERA
ERA+
SO
K%
BB
BB%
 4.5 
 146 
 78 
 676.1 
 42-47 
 5 
 4.86 
 98 
 230 
 7.6 
 244 
 8.0 
Awards & Honors
1
Championships
 

Harry Kelley vs. Roy Mahaffey: Pitching Comparison

Harry Kelley vs. Roy Mahaffey: Totals

Harry Kelley vs. Roy Mahaffey: Value

Harry Kelley vs. Roy Mahaffey: Totals Against

Harry Kelley vs. Roy Mahaffey: Starting & Relieving

Harry Kelley vs. Roy Mahaffey: Ratios

Harry Kelley vs. Roy Mahaffey: Pitch Summary

Harry Kelley vs. Roy Mahaffey: Head-to-Head Pitching

Harry Kelley vs. Roy Mahaffey: Totals

Harry Kelley vs. Roy Mahaffey: Game Logs

Subscribe to Stathead Baseball for full results.

Go inside the Baseball Reference database and access the sports search engine that was made for fans like you. Subscriptions start at just $9/month. Learn More.

Get your first month FREE

Already a paid subscriber? Log in for full results.

Harry Kelley vs. Roy Mahaffey: Batter vs. Pitcher

Harry Kelley (Pitcher) vs. Roy Mahaffey (Batter): Year-by-Year Totals

Harry Kelley (Pitcher) vs. Roy Mahaffey (Batter): Plate Appearances

Subscribe to Stathead Baseball for full results.

Go inside the Baseball Reference database and access the sports search engine that was made for fans like you. Subscriptions start at just $9/month. Learn More.

Get your first month FREE

Already a paid subscriber? Log in for full results.

Harry Kelley vs. Roy Mahaffey: Batting Comparison

Harry Kelley vs. Roy Mahaffey: Batting Totals

Harry Kelley vs. Roy Mahaffey: Batting Value

Harry Kelley vs. Roy Mahaffey: Batting Sabermetric

Harry Kelley vs. Roy Mahaffey: Batting Win Probability

Harry Kelley vs. Roy Mahaffey: Head-to-Head Batting

Harry Kelley vs. Roy Mahaffey: Totals

Harry Kelley vs. Roy Mahaffey: Game Logs

Subscribe to Stathead Baseball for full results.

Go inside the Baseball Reference database and access the sports search engine that was made for fans like you. Subscriptions start at just $9/month. Learn More.

Get your first month FREE

Already a paid subscriber? Log in for full results.

Data coverage:

Game data: Game data is only available for the American League, National League, and Federal League. Since 1901 for regular season data, since 1933 for the All-Star Game, and since 1903 for the Postseason.

Season data: Since 1871. Stats relying on play-by-play data are complete back to 1969, nearly complete back to 1950, and mostly complete back to 1912. Postseason data since 1903.

Please see our data coverage page for details.

If you utilize material unique to a Sports Reference site for a tweet, an article, or for research for a broadcast or podcast, please strongly consider citing this site as the source for the material. It would be greatly appreciated and would help us continue to produce this material.