Jack McMahan

Pitcher · Career Stats, Bio & Records (1956)

Jack McMahan was a pitcher who played in Major League Baseball in 1956 for the Pittsburgh Pirates and the Kansas City Athletics. Across 34 career appearances, he went 0-5 with a 5.04 ERA and 22 strikeouts.

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

W–L 0–5
ERA 5.04
WHIP 1.69
SO 22
Pitcher PIV -1659.1
Position
Pitcher
Bats / Throws
R / L
Height / Weight
6'0" / 175 lb
Born
7/25/1932 in Hot Springs, AR, USA
Died
10/16/2020 in Hot Springs, AR, USA
MLB Debut
1956-04-18
Last Game
1956-09-23

Full name: Jack Wally McMahan

Career Pitching Statistics

Jack McMahan — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
0 5 34 9 0 0 0 75.0 87 42 8 40 22 5.04 -1659.1

Career ERA 5.04 vs. league average 3.96 across their career seasons — 27.1% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

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

Jack McMahan — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
34 15 0 0 0 0 0 0 0 0 8 .000 .000 .000 .000 0

Career AVG .000 vs. league average .258 across their career seasons — 100.0% below league average.

Career OBP .000 vs. league average .331 across their career seasons — 100.0% below league average.

Career SLG .000 vs. league average .397 across their career seasons — 100.0% below league average.

Career OPS .000 vs. league average .729 across their career seasons — 100.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

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.

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

Batting — Home / Away

Jack McMahan — Batting — Home / Away
SplitGABRHHRRBIAVG
Home1560000.000
Away1990000.000

Pitching — Home / Away

Jack McMahan — Pitching — Home / Away
SplitGIPHERBBSOERA
Home1534.1351717104.46
Away1940.2522623125.75

Last 10 Games — Batting

Jack McMahan — Last 10 Games — Batting
DateTmOppResABRH2B3BHRRBIBBSO
1956-09-23 KC1CHWL 000000000
1956-09-07 KC1DETL 000000000
1956-09-06 KC1DETL 000000000
1956-09-01 KC1DETL 000000000
1956-08-29 KC1NYYL 200000000
1956-08-25 KC1MINL 000000000
1956-08-19 KC1CLEL 100000001
1956-08-18 KC1CLEL 000000000
1956-08-15 KC1CHWL 000000000
1956-08-10 KC1CLEL 000000000

Last 10 Games — Pitching

Jack McMahan — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1956-09-23 KC1CHW — 1.0000000
1956-09-07 KC1DET — 1.0111200
1956-09-06 KC1DET — 1.0000000
1956-09-01 KC1DET — 0.2322100
1956-08-29 KC1NYY — 4.2543321
1956-08-25 KC1MIN — 2.0100000
1956-08-19 KC1CLE — 3.1311210
1956-08-18 KC1CLE — 2.0100010
1956-08-15 KC1CHW — 0.2000000
1956-08-10 KC1CLE — 1.0000110

Fielding Statistics

Career Fielding Totals by Position

Jack McMahan — Career Fielding Totals by Position
Position G GS PO A E DP
P 34 9 3 14 0 1

Season-by-Season Fielding

Career Games by Position

Position Diamond

Circle size = games played at each position.

Jack McMahan — Career Games by Position
Position Games
Pitcher 34

Jack McMahan: the record in brief

Jack McMahan's major league career runs from a debut on April 18, 1956 to a final game on September 23, 1956. The team column moves through the Pittsburgh Pirates (1956) and the Kansas City Athletics (1956). McMahan, a pitcher by primary position, threw left-handed and batted right-handed. Height and weight on file: 175 pounds on a 6-foot-0 frame. McMahan was born on July 25, 1932, in Hot Springs, AR, USA. McMahan died on October 16, 2020, in Hot Springs, AR, USA. McMahan's full given name, per the bio, is Jack Wally McMahan.

McMahan's career pitching line is 0 wins, 5 losses and a 5.04 ERA over 34 appearances. The totals include 22 strikeouts. The league ERA over McMahan's seasons was 3.96, so the 5.04 figure ran 27.1% worse than average. In 1956, one of the busiest seasons, McMahan posted a 4.82 ERA; the league figure that year was 3.96.

McMahan appears at one position only: pitcher, in 34 games. The fielding table credits McMahan with 3 putouts, 14 assists and 0 errors on the mound.

Frequently Asked Questions about Jack McMahan

Was Jack McMahan a pitcher?
Yes. Jack McMahan pitched in the major leagues, recording 0 wins and 22 strikeouts.
How many home runs did Jack McMahan hit?
Jack McMahan hit 0 career home runs.
What teams did Jack McMahan play for?
Jack McMahan played for 2 teams: the Pittsburgh Pirates (1956) and the Kansas City Athletics (1956).
What were Jack McMahan's career stats?
In 34 games, Jack McMahan went 0-5 with a 5.04 ERA, 22 strikeouts, and 75.0 innings pitched.
What position did Jack McMahan play?
Jack McMahan played primarily as a pitcher, the position where he appeared in the most games.
How tall was Jack McMahan and how much did he weigh?
Jack McMahan was listed at 6 feet and 175 pounds.
What was Jack McMahan's career ERA?
Jack McMahan finished with a 5.04 career ERA, going 0-5 with 22 strikeouts.
How many strikeouts did Jack McMahan have?
Jack McMahan recorded 22 career strikeouts.
Is Jack McMahan in the Hall of Fame?
No. Jack McMahan has not been inducted into the National Baseball Hall of Fame.