Bob Mahoney
Pitcher · Career Stats, Bio & Records (1951-1952)
Bob Mahoney was a pitcher who played in Major League Baseball from 1951 to 1952 for the Chicago White Sox and the St. Louis Browns, a span of 2 seasons. Across 36 career appearances, he went 2-5 with a 4.96 ERA and 34 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
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'1" / 185 lb
- Died
- 8/27/2000 in Lincoln, NE, USA
- MLB Debut
- 1951-05-03
- Last Game
- 1952-06-14
Full name: Robert Paul Mahoney
Season-by-Season Pitching
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1951 | CHA | AL | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 6.2 | 5 | 4 | 5 | 3 | 5.40 | — | 0.0 |
| 1951 | SLA | AL | 2 | 5 | 30 | 4 | 0 | 0 | 0 | 81.0 | 86 | 40 | 41 | 30 | 4.44 | 4.04 (-10%) | -689.8 |
| 1952 | SLA | AL | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 3.0 | 8 | 6 | 4 | 1 | 18.00 | — | 0.0 |
| Career · 3 seasons | 2 | 5 | 36 | 4 | 0 | 0 | 0 | 90.2 | 99 | 50 | 50 | 34 | 4.96 | — | -690 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 36 | 18 | 3 | 4 | 0 | 0 | 0 | 2 | 0 | 2 | 9 | .222 | .300 | .222 | .522 | 0 |
Career AVG .222 vs. league average .257 across their career seasons — 13.5% below league average.
Career OBP .300 vs. league average .332 across their career seasons — 9.5% below league average.
Career SLG .222 vs. league average .378 across their career seasons — 41.1% below league average.
Career OPS .522 vs. league average .709 across their career seasons — 26.4% below league average.
Season-by-Season Batting
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1951 | CHA | AL | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1951 | SLA | AL | 30 | 18 | 3 | 4 | 0 | 0 | 0 | 2 | 0 | 2 | 9 | .222 | — | — | — | — | 0.0 |
| 1952 | SLA | AL | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 3 seasons | 36 | 18 | 3 | 4 | 0 | 0 | 0 | 2 | 0 | 2 | 9 | .222 | — | — | — | — | 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.
Game Log & Splits
View full game log (72 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 22 | 8 | 2 | 1 | 0 | 0 | .125 |
| Away | 14 | 10 | 1 | 3 | 0 | 2 | .300 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 22 | 51.2 | 65 | 37 | 30 | 20 | 6.45 |
| Away | 14 | 39.0 | 34 | 13 | 20 | 14 | 3.00 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1952-06-14 | SLA | PHA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1952-06-12 | SLA | BOS | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1952-05-13 | SLA | PHA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-28 | SLA | CHW | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-23 | SLA | CHW | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-19 | SLA | MIN | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1951-09-16 | SLA | PHA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-14 | SLA | BOS | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-08 | SLA | CLE | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1951-09-06 | SLA | CHW | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1952-06-14 | SLA | PHA | — | 0.0 | 3 | 4 | 4 | 1 | 0 | 0 |
| 1952-06-12 | SLA | BOS | — | 1.0 | 4 | 1 | 1 | 0 | 1 | 0 |
| 1952-05-13 | SLA | PHA | — | 2.0 | 1 | 1 | 1 | 3 | 0 | 0 |
| 1951-09-28 | SLA | CHW | L | 1.2 | 6 | 4 | 4 | 2 | 1 | 0 |
| 1951-09-23 | SLA | CHW | W | 2.0 | 0 | 0 | 0 | 3 | 0 | 0 |
| 1951-09-19 | SLA | MIN | L | 7.2 | 8 | 4 | 4 | 4 | 1 | 0 |
| 1951-09-16 | SLA | PHA | — | 1.2 | 2 | 0 | 0 | 2 | 0 | 0 |
| 1951-09-14 | SLA | BOS | — | 2.0 | 2 | 0 | 0 | 0 | 2 | 0 |
| 1951-09-08 | SLA | CLE | — | 2.0 | 0 | 0 | 0 | 2 | 1 | 0 |
| 1951-09-06 | SLA | CHW | — | 4.1 | 8 | 3 | 3 | 0 | 2 | 1 |
Fielding Statistics
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 36 |
Bob Mahoney: the record in brief
Between the debut on May 3, 1951 and the final game on June 14, 1952, Bob Mahoney built the record summarized on this page. By club, Mahoney's seasons break down as the Chicago White Sox (1951) and the St. Louis Browns (1951 through 1952). At 6-foot-1 and 185 pounds, Mahoney is listed as a pitcher. Mahoney batted and threw right-handed, per the bio block. The recorded birth is June 20, 1928, in Le Roy, MN, USA. Mahoney's death is recorded on August 27, 2000, in Lincoln, NE, USA. Bob Mahoney was the playing name; the full given name is Robert Paul.
Across 36 games (4 starts), Mahoney recorded 2 wins against 5 losses with a 4.96 ERA. Also on Mahoney's record: 34 strikeouts. Against a 3.87 league ERA for the same seasons, the 4.96 mark was 28.2% worse. In 1951, one of the busiest seasons, Mahoney posted a 4.44 ERA; the league figure that year was 4.04.
Frequently Asked Questions about Bob Mahoney
- What years did Bob Mahoney play?
- Bob Mahoney played in Major League Baseball from 1951 to 1952.
- Was Bob Mahoney a pitcher?
- Yes. Bob Mahoney pitched in the major leagues, recording 2 wins and 34 strikeouts.
- How many home runs did Bob Mahoney hit?
- Bob Mahoney hit 0 career home runs with 4 hits.
- What teams did Bob Mahoney play for?
- Bob Mahoney played for 2 teams: the Chicago White Sox (1951) and the St. Louis Browns (1951–1952).
- What were Bob Mahoney's career stats?
- In 36 games, Bob Mahoney went 2-5 with a 4.96 ERA, 34 strikeouts, and 90.2 innings pitched.
- What position did Bob Mahoney play?
- Bob Mahoney played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Bob Mahoney and how much did he weigh?
- Bob Mahoney was listed at 6 feet 1 inch and 185 pounds.
- What was Bob Mahoney's career ERA?
- Bob Mahoney finished with a 4.96 career ERA, going 2-5 with 34 strikeouts.
- How many strikeouts did Bob Mahoney have?
- Bob Mahoney recorded 34 career strikeouts.
- Is Bob Mahoney in the Hall of Fame?
- No. Bob Mahoney has not been inducted into the National Baseball Hall of Fame.