Jack Onslow
Catcher · Career Stats, Bio & Records (1912-1917)
Jack Onslow was a catcher who played in Major League Baseball from 1912 to 1917 for the Detroit Tigers and the New York Giants, a span of 6 seasons. In 45 career games, he hit .169 with 13 hits and 4 RBI.
- 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
- Catcher
- Bats / Throws
- R / R
- Height / Weight
- 5'11" / 180 lb
- Died
- 12/22/1960 in Concord, MA, USA
- MLB Debut
- 1912-05-02
- Last Game
- 1917-10-03
Full name: John James Onslow
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 45 | 77 | 8 | 13 | 2 | 0 | 0 | 4 | 1 | 10 | 24 | .169 | .289 | .195 | .484 | -327 |
Career AVG .169 vs. league average .259 across their career seasons — 34.7% below league average.
Career OBP .289 vs. league average .324 across their career seasons — 10.8% below league average.
Career SLG .195 vs. league average .341 across their career seasons — 42.8% below league average.
Career OPS .484 vs. league average .665 across their career seasons — 27.2% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1912 | DET | AL | 36 | 69 | 7 | 11 | 1 | 0 | 0 | 4 | 1 | 10 | 23 | .159 | .268 (-41%) | .335 (-15%) | .358 (-52%) | .694 (-34%) | -327.1 |
| 1917 | NY1 | NL | 9 | 8 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .250 | — | — | — | — | 0.0 |
| Career · 2 seasons | 45 | 77 | 8 | 13 | 2 | 0 | 0 | 4 | 1 | 10 | 24 | .169 | — | — | — | — | -327 | ||
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 (45 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 29 | 57 | 6 | 10 | 0 | 7 | .175 |
| Away | 16 | 21 | 2 | 3 | 0 | 0 | .143 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1917-10-03 | NY1 | PHI | W | 2 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
| 1917-10-03 | NY1 | PHI | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-09-30 | NY1 | CIN | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-09-29 | NY1 | CIN | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-09-26 | NY1 | STL | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1917-09-03 | NY1 | BSN | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-09-03 | NY1 | BSN | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-08-28 | NY1 | PIT | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1917-08-25 | NY1 | CHC | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1912-10-04 | DET | CHW | L | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Catcher | 44 |
| Center Field | 1 |
Jack Onslow: the record in brief
The profile opens with Jack Onslow's first major league game on May 2, 1912; the last one listed came on October 3, 1917. Onslow played for the Detroit Tigers (1912) and the New York Giants (1917). Listed as a catcher, Onslow batted and threw right-handed. Onslow is listed at 5-foot-11 and 180 pounds. Onslow was born on October 13, 1888, in Scottdale, PA, USA. Onslow died on December 22, 1960, in Concord, MA, USA. The given name on file is John James Onslow.
In 45 games and 77 at bats, Onslow batted .169 with 13 hits; the totals also include 4 runs batted in. Onslow's career OPS of .484 combines a .289 on-base mark with .195 slugging. Onslow's .169 average ran 34.7% below the .259 that the league posted over the same seasons. Onslow collected a career-high 11 hits in 1912. Even the best average among the busiest seasons, .159 in 1912, did not top the league's .268.
The position table credits Onslow with 44 games at catcher and also lists 1 at center field. Behind the plate, the fielding record shows 9 errors alongside 120 putouts and 40 assists.
Frequently Asked Questions about Jack Onslow
- What years did Jack Onslow play?
- Jack Onslow played in Major League Baseball from 1912 to 1917.
- Was Jack Onslow a pitcher?
- No. Jack Onslow was a position player (Catcher).
- How many home runs did Jack Onslow hit?
- Jack Onslow hit 0 career home runs with 13 hits.
- What was Jack Onslow's career batting average?
- Jack Onslow batted .169 over his career, with 13 hits in 77 at bats.
- How many RBI did Jack Onslow have?
- Jack Onslow drove in 4 runs in his career.
- Is Jack Onslow in the Hall of Fame?
- No. Jack Onslow has not been inducted into the National Baseball Hall of Fame.