Tommy O'Brien
Outfielder · Career Stats, Bio & Records (1943-1950)
Tommy O'Brien was an outfielder who played in Major League Baseball from 1943 to 1950 for the Pittsburgh Pirates, the Boston Red Sox, and the Washington Senators, a span of 8 seasons. In 293 career games, he hit .277 with 198 hits, 8 home runs, and 78 RBI. His career PIV — Baseball Data Hub's era-adjusted measure of offensive impact — is 1,154.
- AVG (Batting Average):
- Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
- HR (Home Runs):
- Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
- RBI (Runs Batted In):
- Runs that scored as a direct result of a batter's plate appearance.
- OPS (On-Base Plus Slugging):
- On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.
Data updated
- Position
- Outfielder
- Bats / Throws
- R / R
- Height / Weight
- 5'11" / 195 lb
- Died
- 11/5/1978 in Anniston, AL, USA
- MLB Debut
- 1943-04-24
- Last Game
- 1950-05-13
Full name: Thomas Edward O'Brien
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 293 | 714 | 110 | 198 | 30 | 14 | 8 | 78 | 2 | 70 | 66 | .277 | .344 | .392 | .736 | 1,154 |
Career AVG .277 vs. league average .261 across their career seasons — +6.2% above league average.
Career OBP .344 vs. league average .333 across their career seasons — near league average.
Career SLG .392 vs. league average .367 across their career seasons — +6.8% above league average.
Career OPS .736 vs. league average .700 across their career seasons — near 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1943 | PIT | NL | 89 | 232 | 35 | 72 | 12 | 7 | 2 | 26 | 0 | 15 | 24 | .310 | .255 (+21%) | .324 (+8%) | .346 (+29%) | .671 (+19%) | 669.6 |
| 1944 | PIT | NL | 85 | 156 | 27 | 39 | 6 | 2 | 3 | 20 | 1 | 21 | 12 | .250 | .261 (-4%) | .325 (+5%) | .357 (+4%) | .683 (+5%) | 160.6 |
| 1945 | PIT | NL | 58 | 161 | 23 | 54 | 6 | 5 | 0 | 18 | 0 | 9 | 13 | .335 | .260 (+29%) | .328 (+14%) | .354 (+23%) | .683 (+18%) | 450.7 |
| 1949 | BOS | AL | 49 | 125 | 24 | 28 | 5 | 0 | 3 | 10 | 1 | 21 | 12 | .224 | .262 (-15%) | .343 (-2%) | .384 (-13%) | .727 (-8%) | -126.8 |
| 1950 | BOS | AL | 9 | 31 | 0 | 4 | 1 | 0 | 0 | 3 | 0 | 3 | 5 | .129 | — | — | — | — | 0.0 |
| 1950 | WS1 | AL | 3 | 9 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | .111 | — | — | — | — | 0.0 |
| Career · 6 seasons | 293 | 714 | 110 | 198 | 30 | 14 | 8 | 78 | 2 | 70 | 66 | .277 | — | — | — | — | 1,154 | ||
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 (293 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 144 | 324 | 62 | 100 | 3 | 46 | .309 |
| Away | 149 | 391 | 48 | 98 | 5 | 32 | .251 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1950-05-13 | MIN | BOS | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1950-05-12 | MIN | BOS | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1950-05-10 | MIN | CHW | W | 3 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| 1950-05-05 | BOS | CHW | W | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1950-04-28 | BOS | PHA | W | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| 1950-04-27 | BOS | NYY | W | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1950-04-26 | BOS | NYY | L | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1950-04-24 | BOS | MIN | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1950-04-23 | BOS | PHA | L | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1950-04-22 | BOS | PHA | L | 5 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 1 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Third Base | 10 |
| Left Field | 49 |
| Center Field | 11 |
| Right Field | 125 |
Tommy O'Brien: the record in brief
Between the debut on April 24, 1943 and the final game on May 13, 1950, Tommy O'Brien built the record summarized on this page. The team column moves through the Pittsburgh Pirates (1943 through 1945), the Boston Red Sox (1949 to 1950), and the Washington Senators (1950). O'Brien played primarily as an outfielder and threw and hit right-handed. Born on December 19, 1918, in Anniston, AL, USA, O'Brien was listed at 195 pounds on a 5-foot-11 frame. O'Brien's death is recorded on November 5, 1978, in Anniston, AL, USA. The given name on file is Thomas Edward O'Brien.
The batting record for O'Brien: 293 games, 198 hits in 714 at bats, and a .277 average; the totals also include 8 home runs and 78 runs batted in. O'Brien's career OPS of .736 combines a .344 on-base mark with .392 slugging. Set against a .261 league average for the same years, O'Brien's .277 average sits 6.2% above it. No season topped the 72 hits of 1943. The RBI column peaks at 26 in 1943.
Frequently Asked Questions about Tommy O'Brien
- What years did Tommy O'Brien play?
- Tommy O'Brien played in Major League Baseball from 1943 to 1950.
- Was Tommy O'Brien a pitcher?
- No. Tommy O'Brien was a position player (Outfielder).
- How many home runs did Tommy O'Brien hit?
- Tommy O'Brien hit 8 career home runs with 198 hits.
- What teams did Tommy O'Brien play for?
- Tommy O'Brien played for 3 teams: the Pittsburgh Pirates (1943–1945), the Boston Red Sox (1949–1950), and the Washington Senators (1950).
- What were Tommy O'Brien's career stats?
- In 293 games, Tommy O'Brien had 198 hits, 8 home runs, 78 RBI, 110 runs, and 2 stolen bases, with a .277 batting average.
- What position did Tommy O'Brien play?
- Tommy O'Brien played primarily as an outfielder, the position where he appeared in the most games.
- How tall was Tommy O'Brien and how much did he weigh?
- Tommy O'Brien was listed at 5 feet 11 inches and 195 pounds.
- How many home runs did Tommy O'Brien hit each season?
- Tommy O'Brien's home runs by season: 2 in 1943, 3 in 1944, 0 in 1945, 3 in 1949, and 0 in 1950. His most in one season was 3, in 1944 and 1949.
- What was Tommy O'Brien's career batting average?
- Tommy O'Brien batted .277 over his career, with 198 hits in 714 at bats.
- How many RBI did Tommy O'Brien have?
- Tommy O'Brien drove in 78 runs in his career.
- Is Tommy O'Brien in the Hall of Fame?
- No. Tommy O'Brien has not been inducted into the National Baseball Hall of Fame.