Tom Knowlson
Pitcher · Career Stats, Bio & Records (1915)
Tom Knowlson was a pitcher who played in Major League Baseball in 1915 for the Philadelphia Athletics. Across 18 career appearances, he went 4-6 with a 3.49 ERA and 24 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
- B / R
- Height / Weight
- 5'11" / 178 lb
- Died
- 4/11/1943 in Miami Shores, FL, USA
- MLB Debut
- 1915-07-03
- Last Game
- 1915-09-23
Full name: Thomas Herbert Knowlson
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | PHA | AL | 4 | 6 | 18 | 9 | 8 | 0 | 0 | 100.2 | 99 | 39 | 60 | 24 | 3.49 | 2.90 (-20%) | -2868.9 |
| Career · 1 season | 4 | 6 | 18 | 9 | 8 | 0 | 0 | 100.2 | 99 | 39 | 60 | 24 | 3.49 | — | -2,869 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 36 | 2 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 23 | .083 | .132 | .083 | .215 | 0 |
Career AVG .083 vs. league average .251 across their career seasons — 66.7% below league average.
Career OBP .132 vs. league average .319 across their career seasons — 58.7% below league average.
Career SLG .083 vs. league average .332 across their career seasons — 74.9% below league average.
Career OPS .215 vs. league average .651 across their career seasons — 67.0% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | PHA | AL | 18 | 36 | 2 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 23 | .083 | — | — | — | — | 0.0 |
| Career · 1 season | 18 | 36 | 2 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 23 | .083 | — | — | — | — | 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 (36 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 8 | 10 | 0 | 0 | 0 | 0 | .000 |
| Away | 10 | 26 | 2 | 3 | 0 | 0 | .115 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 8 | 30.2 | 37 | 17 | 19 | 7 | 4.99 |
| Away | 10 | 70.0 | 62 | 23 | 38 | 17 | 2.96 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915-09-23 | PHA | DET | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-09-21 | PHA | DET | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1915-09-14 | PHA | SLA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-09-09 | PHA | BOS | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1915-09-07 | PHA | MIN | W | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1915-09-06 | PHA | MIN | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1915-09-02 | PHA | BOS | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1915-08-28 | PHA | CHW | W | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 |
| 1915-08-22 | PHA | CLE | W | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 |
| 1915-08-18 | PHA | DET | L | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1915-09-23 | PHA | DET | — | 1.0 | 2 | 2 | 2 | 2 | 2 | 0 |
| 1915-09-21 | PHA | DET | — | 2.2 | 2 | 3 | 3 | 4 | 0 | 0 |
| 1915-09-14 | PHA | SLA | L | 1.0 | 2 | 1 | 1 | 3 | 0 | 0 |
| 1915-09-09 | PHA | BOS | L | 8.0 | 9 | 5 | 3 | 6 | 1 | 0 |
| 1915-09-07 | PHA | MIN | W | 4.1 | 6 | 3 | 3 | 1 | 0 | 0 |
| 1915-09-06 | PHA | MIN | — | 1.2 | 0 | 0 | 0 | 1 | 1 | 0 |
| 1915-09-02 | PHA | BOS | L | 9.0 | 14 | 8 | 6 | 3 | 2 | 0 |
| 1915-08-28 | PHA | CHW | W | 9.0 | 7 | 2 | 2 | 8 | 4 | 0 |
| 1915-08-22 | PHA | CLE | W | 9.0 | 2 | 1 | 0 | 7 | 2 | 0 |
| 1915-08-18 | PHA | DET | — | 7.0 | 9 | 2 | 2 | 2 | 1 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 18 |
Tom Knowlson: the record in brief
Tom Knowlson played a first major league game on July 3, 1915 and a last one on September 23, 1915. Every season row on the page belongs to the Philadelphia Athletics, in 1915. Knowlson played primarily as a pitcher and switch-hit and threw right-handed. Born on April 23, 1895, in Ridgway, PA, USA, Knowlson was listed at 178 pounds on a 5-foot-11 frame. Knowlson died on April 11, 1943, in Miami Shores, FL, USA. On the record, Tom Knowlson was born Thomas Herbert Knowlson.
Knowlson went 4-6 with a 3.49 ERA in 18 games, 9 of them starts. The same table counts 24 strikeouts. Against a 2.90 league ERA for the same seasons, the 3.49 mark was 20.4% worse. Knowlson's only pitching season is 1915: 18 games, 24 strikeouts.
The position breakdown shows 18 games, all at pitcher. On the mound, Knowlson's fielding totals are 2 putouts, 32 assists and 5 errors.
Retrosheet box scores cover 36 of Knowlson's games, and the full game log is linked from the splits section.
Frequently Asked Questions about Tom Knowlson
- Was Tom Knowlson a pitcher?
- Yes. Tom Knowlson pitched in the major leagues, recording 4 wins and 24 strikeouts.
- How many home runs did Tom Knowlson hit?
- Tom Knowlson hit 0 career home runs with 3 hits.
- What teams did Tom Knowlson play for?
- Tom Knowlson played for one team, the Philadelphia Athletics (1915).
- What were Tom Knowlson's career stats?
- In 18 games, Tom Knowlson went 4-6 with a 3.49 ERA, 24 strikeouts, and 100.2 innings pitched.
- What position did Tom Knowlson play?
- Tom Knowlson played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Tom Knowlson and how much did he weigh?
- Tom Knowlson was listed at 5 feet 11 inches and 178 pounds.
- What was Tom Knowlson's career ERA?
- Tom Knowlson finished with a 3.49 career ERA, going 4-6 with 24 strikeouts.
- How many strikeouts did Tom Knowlson have?
- Tom Knowlson recorded 24 career strikeouts.
- Is Tom Knowlson in the Hall of Fame?
- No. Tom Knowlson has not been inducted into the National Baseball Hall of Fame.