Roy Mahaffey

Pitcher · Career Stats, Bio & Records (1926-1936)

W–L 67–49
ERA 5.01
WHIP 1.55
SO 365
Pitcher PIV -16789.8
Position
Pitcher
Bats / Throws
R / R
Height / Weight
6'0" / 180 lb
Born
2/9/1904 in Belton, SC, USA
Died
7/23/1969 in Anderson, SC, USA
MLB Debut
1926-08-31
Last Game
1936-07-28

Full name: Lee Roy Mahaffey

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Career Pitching Statistics

W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
67 49 224 128 45 0 5 1056.0 1,181 588 84 452 365 5.01 -16789.8

Career ERA 5.01 vs. league average 4.25 across their career seasons — 17.8% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1926 PIT NL 0 0 4 0 0 0 0 4.7 5 0 1 3 0.00 — 0.0
1927 PIT NL 1 0 2 1 0 0 0 9.3 9 8 9 4 7.71 4.08 (-89%) 0.0
1930 PHA AL 9 5 33 16 6 0 0 152.7 186 85 53 38 5.01 4.80 (-4%) -3023.0
1931 PHA AL 15 4 30 20 8 0 2 162.3 161 76 82 59 4.21 4.10 (-3%) -2450.6
1932 PHA AL 13 13 37 28 13 0 0 222.7 245 126 96 106 5.09 4.13 (-23%) -5485.4
1933 PHA AL 13 10 33 23 9 0 0 179.3 198 103 74 66 5.17 3.86 (-34%) 63.9
1934 PHA AL 6 7 37 14 3 0 2 129.0 142 77 55 37 5.37 4.29 (-25%) -2146.5
1935 PHA AL 8 4 27 17 5 0 0 136.0 153 59 42 39 3.90 4.35 (+10%) -1216.8
1936 SLA AL 2 6 21 9 1 0 1 60.0 82 54 40 13 8.10 4.59 (-77%) -2531.3
Career · 9 seasons 67 49 224 128 45 0 5 1,056.0 1,181 588 452 365 5.01 — -16,790

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
224 396 28 73 9 1 4 33 0 14 139 .184 .212 .242 .455 -2,278

Career AVG .184 vs. league average .280 across their career seasons — 34.2% below league average.

Career OBP .212 vs. league average .343 across their career seasons — 38.1% below league average.

Career SLG .242 vs. league average .396 across their career seasons — 38.9% below league average.

Career OPS .455 vs. league average .739 across their career seasons — 38.5% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
1926 PIT NL 4 2 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
1927 PIT NL 2 5 0 2 0 0 0 1 0 0 3 .400 — — — — 0.0
1930 PHA AL 33 59 2 7 1 0 1 7 0 0 21 .119 .293 (-60%) .354 (-67%) .429 (-57%) .784 (-61%) -622.2
1931 PHA AL 30 63 7 12 2 0 2 8 0 4 25 .190 .276 (-31%) .338 (-29%) .388 (-18%) .726 (-23%) -247.5
1932 PHA AL 37 87 7 15 1 1 1 6 0 3 37 .172 .275 (-37%) .335 (-40%) .391 (-38%) .726 (-39%) -559.5
1933 PHA AL 33 65 4 14 1 0 0 6 0 2 23 .215 .270 (-20%) .329 (-28%) .377 (-39%) .707 (-34%) -339.6
1934 PHA AL 37 48 5 13 2 0 0 4 0 2 5 .271 — — — — -128.7
1935 PHA AL 27 51 3 9 1 0 0 1 0 2 18 .176 .279 (-37%) .342 (-39%) .399 (-51%) .742 (-46%) -380.2
1936 SLA AL 21 16 0 1 1 0 0 0 0 1 7 .062 — — — — 0.0
Career · 9 seasons 224 396 28 73 9 1 4 33 0 14 139 .184 — — — — -2,278

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Postseason Statistics

Playoff Career Batting

G AB R H 2B 3B HR RBI BB SO AVG
1 0 0 0 0 0 0 0 0 0 .000

Playoff Batting by Year

Year Round Team G AB R H 2B 3B HR RBI BB SO AVG
1931 WS PHA 1 0 0 0 0 0 0 0 0 0 .000

Playoff Career Pitching

W L G GS SV IP H ER BB SO ERA
0 0 1 0 0 1.0 1 1 1 0 9.00

Playoff Pitching by Year

Year Round Team W L G GS SV IP H ER BB SO ERA
1931 WS PHA 0 0 1 0 0 1.0 1 1 1 0 9.00

Game Log & Splits

View full game log (448 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

SplitGABRHHRRBIAVG
Home1101771436218.203
Away1142181436215.165

Pitching — Home / Away

SplitGIPHERBBSOERA
Home110518.15632892152015.02
Away114537.26182972371684.97

Last 10 Games — Batting

DateTmOppResABRH2B3BHRRBIBBSO
1936-07-28 SLABOSL 000000000
1936-07-23 SLANYYL 100000001
1936-07-18 SLANYYL 000000010
1936-07-15 SLABOSL 200000002
1936-07-02 SLACLEL 100000000
1936-06-23 SLAMINL 000000000
1936-06-17 SLAPHAW 000000000
1936-06-16 SLAPHAL 000000000
1936-06-08 SLANYYL 000000000
1936-06-02 SLAMINL 000000000

Last 10 Games — Pitching

DateTmOppDecIPHRERBBSOHR
1936-07-28 SLABOS — 1.0000100
1936-07-23 SLANYY — 2.1233300
1936-07-18 SLANYY L 3.2674410
1936-07-15 SLABOS L 6.0743301
1936-07-02 SLACLE L 3.0566301
1936-06-23 SLAMIN — 1.0322000
1936-06-17 SLAPHA — 2.0543010
1936-06-16 SLAPHA — 2.0300010
1936-06-08 SLANYY — 2.0111220
1936-06-02 SLAMIN — 2.0100000

Fielding Statistics

Career Fielding Totals by Position

Position G GS PO A E DP
P 224 0 34 152 12 11

Season-by-Season Fielding

Year Team Pos G GS PO A E DP
1926 PIT P 4 0 0 0 1 0
1927 PIT P 2 0 0 1 0 0
1930 PHA P 33 0 5 25 2 4
1931 PHA P 30 0 4 19 1 0
1932 PHA P 37 0 11 35 3 3
1933 PHA P 33 0 7 29 1 1
1934 PHA P 37 0 5 19 2 0
1935 PHA P 27 0 2 21 1 3
1936 SLA P 21 0 0 3 1 0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Position Games
Pitcher 224

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Roy Mahaffey (highlighted) compared to peers across the same era.

  1. 98
    Gordon Rhodes
    43-74, 4.85 ERA
  2. 96
    Karl Drews
    44-53, 4.76 ERA
  3. 93
    Alex Ferguson
    61-85, 4.89 ERA
  4. 91
    John Whitehead
    49-54, 4.60 ERA
  5. 89
    Bill Champion
    34-50, 4.69 ERA
  6. 88
    Jimmie DeShong
    47-44, 5.08 ERA

Frequently Asked Questions about Roy Mahaffey

What years did Roy Mahaffey play?
Roy Mahaffey played in Major League Baseball from 1926 to 1936.
Was Roy Mahaffey a pitcher?
Yes. Roy Mahaffey pitched in the major leagues, recording 67 wins and 365 strikeouts.
How many home runs did Roy Mahaffey hit?
Roy Mahaffey hit 4 career home runs with 73 hits.