What years did Don McMahon play?

Don McMahon played in Major League Baseball from 1957 to 1974.

Was Don McMahon a pitcher?

Yes. Don McMahon pitched in the major leagues, recording 90 wins and 1003 strikeouts.

How many home runs did Don McMahon hit?

Don McMahon hit 0 career home runs with 23 hits.

What was Don McMahon's career batting average?

Don McMahon batted .137 over his career, with 23 hits in 168 at bats.

How many RBI did Don McMahon have?

Don McMahon drove in 9 runs in his career.

What was Don McMahon's career ERA?

Don McMahon finished with a 2.96 career ERA, going 90-68 with 1,003 strikeouts.

Don McMahon

Pitcher · Career Stats, Bio & Records (1957-1974)

Don McMahon was a pitcher who played in Major League Baseball from 1957 to 1974 for 7 teams, including the Milwaukee Braves, a span of 18 seasons. Across 874 career appearances, he went 90-68 with a 2.96 ERA, 1,003 strikeouts, and 153 saves. Don McMahon was an All-Star. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 5985.5.

W (Wins):: Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):: Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):: For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):: Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated September 8, 2026

W–L 90–68

ERA 2.96

WHIP 1.25

SO 1,003

Pitcher PIV 5985.5

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'2" / 215 lb
Born: 1/4/1930 in Brooklyn, NY, USA
Died: 7/22/1987 in Los Angeles, CA, USA
MLB Debut: 1957-06-30
Last Game: 1974-06-29
Awards: All-Star

Full name: Donald John McMahon

📊 Compare This Player 📈 View Career Timeline

Career Pitching Statistics

Don McMahon — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
90	68	874	2	0	0	153	1310.7	1,054	431	105	579	1,003	2.96	5985.5

Career ERA 2.96 vs. league average 3.61 across their career seasons — 18.1% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Don McMahon Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1957	ML1	NL	2	3	32	0	9	46.7	33	8	29	46	1.54	3.83 (+60%)	1748.3
1958	ML1	NL	7	2	38	0	8	58.7	50	24	29	37	3.68	3.86 (+5%)	259.8
1959	ML1	NL	5	3	60	0	15	80.7	81	23	37	55	2.57	3.90 (+34%)	1037.4
1960	ML1	NL	3	6	48	0	10	63.7	66	42	32	50	5.94	3.82 (-56%)	-921.5
1961	ML1	NL	6	4	53	0	8	92.0	84	29	51	55	2.84	4.03 (+30%)	830.9
1962	ML1	NL	0	1	2	0	0	3.0	3	2	0	3	6.00	—	0.0
1962	HOU	NL	5	5	51	0	8	76.7	53	13	33	69	1.53	3.96 (+61%)	2198.8
1963	HOU	NL	1	5	49	2	5	80.0	83	36	26	51	4.05	3.46 (-17%)	-690.1
1964	CLE	AL	6	4	70	0	16	101.0	67	27	52	92	2.41	3.58 (+33%)	753.7
1965	CLE	AL	3	3	58	0	11	85.0	79	31	37	60	3.28	3.50 (+6%)	-364.1
1966	CLE	AL	1	1	12	0	1	12.3	8	4	6	5	2.92	3.52 (+17%)	-227.2
1966	BOS	AL	8	7	49	0	9	78.0	65	23	38	57	2.65	3.52 (+25%)	-616.3
1967	BOS	AL	1	2	11	0	2	17.7	14	7	13	10	3.57	3.30 (-8%)	-1437.4
1967	CHA	AL	5	0	52	0	3	91.7	54	17	27	74	1.67	3.30 (+49%)	1377.3
1968	CHA	AL	2	1	25	0	0	46.0	31	10	20	32	1.96	2.98 (+34%)	-88.5
1968	DET	AL	3	1	20	0	1	35.7	22	8	10	33	2.02	2.98 (+32%)	788.0
1969	DET	AL	3	5	34	0	11	37.0	25	16	18	38	3.89	3.61 (-8%)	852.9
1969	SFN	NL	3	1	13	0	2	23.7	13	8	9	21	3.04	3.61 (+16%)	706.8
1970	SFN	NL	9	5	61	0	19	94.3	70	31	45	74	2.96	3.89 (+24%)	195.7
1971	SFN	NL	10	6	61	0	4	82.0	73	37	37	71	4.06	3.47 (-17%)	-589.0
1972	SFN	NL	3	3	44	0	5	63.0	46	26	21	45	3.71	3.26 (-14%)	-637.6
1973	SFN	NL	4	0	22	0	6	30.3	21	5	7	20	1.48	3.75 (+60%)	1051.6
1974	SFN	NL	0	0	9	0	0	11.7	13	4	2	5	3.09	3.63 (+15%)	-244.0
Career · 23 seasons			90	68	874	2	153	1,310.2	1,054	431	579	1,003	2.96	—	5,986

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

Don McMahon — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
874	168	8	23	4	0	0	9	0	10	87	.137	.185	.161	.346	0

Career AVG .137 vs. league average .251 across their career seasons — 45.4% below league average.

Career OBP .185 vs. league average .318 across their career seasons — 41.6% below league average.

Career SLG .161 vs. league average .375 across their career seasons — 57.2% below league average.

Career OPS .346 vs. league average .693 across their career seasons — 50.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Don McMahon Stats, Bio & Career Records
Year	Team	Lg	G	AB	R	H	2B	RBI	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1957	ML1	NL	32	8	1	2	1	3	2	2	.250	—	—	—	—	0.0
1958	ML1	NL	38	9	0	1	0	0	2	6	.111	—	—	—	—	0.0
1959	ML1	NL	60	9	2	2	0	0	1	5	.222	—	—	—	—	0.0
1960	ML1	NL	48	11	0	0	0	1	0	5	.000	—	—	—	—	0.0
1961	ML1	NL	53	16	1	3	1	1	0	4	.188	—	—	—	—	0.0
1962	ML1	NL	2	0	0	0	0	0	0	0	.000	—	—	—	—	0.0
1962	HOU	NL	51	12	0	1	0	0	0	4	.083	—	—	—	—	0.0
1963	HOU	NL	49	12	1	1	1	0	2	5	.083	—	—	—	—	0.0
1964	CLE	AL	70	14	1	2	0	1	0	8	.143	—	—	—	—	0.0
1965	CLE	AL	58	9	0	2	0	0	0	5	.222	—	—	—	—	0.0
1966	CLE	AL	12	2	0	0	0	0	0	1	.000	—	—	—	—	0.0
1966	BOS	AL	49	11	0	1	1	1	1	6	.091	—	—	—	—	0.0
1967	BOS	AL	11	2	0	0	0	0	0	2	.000	—	—	—	—	0.0
1967	CHA	AL	52	11	0	2	0	0	0	8	.182	—	—	—	—	0.0
1968	CHA	AL	25	3	0	1	0	0	0	1	.333	—	—	—	—	0.0
1968	DET	AL	20	4	0	0	0	0	0	2	.000	—	—	—	—	0.0
1969	DET	AL	34	6	0	0	0	0	0	5	.000	—	—	—	—	0.0
1969	SFN	NL	13	3	1	1	0	0	0	1	.333	—	—	—	—	0.0
1970	SFN	NL	61	14	1	2	0	1	2	9	.143	—	—	—	—	0.0
1971	SFN	NL	61	7	0	0	0	0	0	6	.000	—	—	—	—	0.0
1972	SFN	NL	44	4	0	1	0	0	0	2	.250	—	—	—	—	0.0
1973	SFN	NL	22	1	0	1	0	1	0	0	1.000	—	—	—	—	0.0
1974	SFN	NL	9	0	0	0	0	0	0	0	.000	—	—	—	—	0.0
Career · 23 seasons			874	168	8	23	4	9	10	87	.137	—	—	—	—	0

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

Don McMahon — Playoff Career Batting
G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
10	0	0	0	0	0	0	0	0	0	.000

Playoff Batting by Year

Don McMahon — Playoff Batting by Year
Year	Round	Team	G	AVG
1971	NLCS	SFN	2	.000
1968	WS	DET	2	.000
1958	WS	ML1	3	.000
1957	WS	ML1	3	.000

Playoff Career Pitching

Don McMahon — Playoff Career Pitching
W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
0	0	10	0	0	13.3	10	5	6	14	3.38

Playoff Pitching by Year

Don McMahon — Playoff Pitching by Year
Year	Round	Team	G	IP	H	ER	BB	SO	ERA
1971	NLCS	SFN	2	3.0	0	0	0	3	0.00
1968	WS	DET	2	2.0	4	3	0	1	13.50
1958	WS	ML1	3	3.3	3	2	3	5	5.40
1957	WS	ML1	3	5.0	3	0	3	5	0.00

Game Log & Splits

View full game log (1744 games) →

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

Batting — Home / Away

Don McMahon — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	425	68	2	8	0	1	.118
Away	447	100	6	15	0	8	.150

Pitching — Home / Away

Don McMahon — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	425	642.2	460	190	276	504	2.66
Away	447	665.0	591	242	302	497	3.28

Last 10 Games — Batting

Don McMahon — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	H	RBI
1974-06-29	SFG	LAD	L	0	0	0
1974-06-25	SFG	SDP	L	0	0	0
1974-06-23	SFG	LAD	L	0	0	0
1974-06-12	SFG	CHC	L	0	0	0
1974-06-09	SFG	PIT	L	0	0	0
1974-05-27	SFG	CHC	L	0	0	0
1974-05-26	SFG	LAD	L	0	0	0
1974-05-25	SFG	LAD	L	0	0	0
1974-05-22	SFG	ATL	L	0	0	0
1973-09-28	SFG	CIN	W	1	1	1

Last 10 Games — Pitching

Don McMahon — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
1974-06-29	SFG	LAD	—	2.0	2	0	0	0	1	0
1974-06-25	SFG	SDP	—	1.0	0	0	0	0	1	0
1974-06-23	SFG	LAD	—	0.0	1	0	0	0	0	0
1974-06-12	SFG	CHC	—	1.1	2	1	0	0	1	0
1974-06-09	SFG	PIT	—	1.1	1	1	1	0	0	1
1974-05-27	SFG	CHC	—	1.1	3	3	3	1	1	1
1974-05-26	SFG	LAD	—	0.2	0	0	0	1	0	0
1974-05-25	SFG	LAD	—	2.0	2	0	0	0	1	0
1974-05-22	SFG	ATL	—	2.0	2	0	0	0	0	0
1973-09-28	SFG	CIN	W	1.1	4	0	0	0	0	0

Fielding Statistics

Career Fielding Totals by Position

Don McMahon — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	874	2	83	187	10	12

Season-by-Season Fielding

Don McMahon — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
1957	ML1	P	32	0	1	5	1	1
1958	ML1	P	38	0	5	7	1	0
1959	ML1	P	60	0	4	10	2	0
1960	ML1	P	48	0	1	13	1	0
1961	ML1	P	53	0	7	23	3	1
1962	ML1	P	2	0	0	0	0	0
1962	HOU	P	51	0	4	11	0	0
1963	HOU	P	49	2	5	12	1	2
1964	CLE	P	70	0	5	10	0	0
1965	CLE	P	58	0	10	15	0	3
1966	CLE	P	12	0	0	2	0	0
1966	BOS	P	49	0	7	8	0	1
1967	BOS	P	11	0	1	4	1	0
1967	CHA	P	52	0	6	12	0	1
1968	CHA	P	25	0	2	4	0	0
1968	DET	P	20	0	1	4	0	0
1969	DET	P	34	0	0	6	0	0
1969	SFN	P	13	0	0	5	0	1
1970	SFN	P	61	0	8	9	0	0
1971	SFN	P	61	0	8	14	0	1
1972	SFN	P	44	0	4	7	0	1
1973	SFN	P	22	0	3	5	0	0
1974	SFN	P	9	0	1	1	0	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Don McMahon Stats, Bio & Career Records
Position	Games
Pitcher	874

Most Similar Players

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

Career Spans

Don McMahon (highlighted) compared to peers across the same era.

Frequently Asked Questions about Don McMahon

What years did Don McMahon play?: Don McMahon played in Major League Baseball from 1957 to 1974.
Was Don McMahon a pitcher?: Yes. Don McMahon pitched in the major leagues, recording 90 wins and 1003 strikeouts.
How many home runs did Don McMahon hit?: Don McMahon hit 0 career home runs with 23 hits.
What was Don McMahon's career batting average?: Don McMahon batted .137 over his career, with 23 hits in 168 at bats.
How many RBI did Don McMahon have?: Don McMahon drove in 9 runs in his career.
What was Don McMahon's career ERA?: Don McMahon finished with a 2.96 career ERA, going 90-68 with 1,003 strikeouts.