John Dettmer
Pitcher · Career Stats, Bio & Records (1994-1995)
John Dettmer was a pitcher who played in Major League Baseball from 1994 to 1995 for the Texas Rangers, a span of 2 seasons. Across 12 career appearances, he went 0-6 with a 4.47 ERA and 27 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
- 6'0" / 185 lb
- MLB Debut
- 1994-06-16
- Last Game
- 1995-04-26
Full name: John Franklin Dettmer
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1994 | TEX | AL | 0 | 6 | 11 | 9 | 0 | 0 | 0 | 54.0 | 63 | 26 | 20 | 27 | 4.33 | 4.51 (+4%) | -1761.2 |
| 1995 | TEX | AL | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.1 | 2 | 1 | 0 | 0 | 27.00 | — | 0.0 |
| Career · 2 seasons | 0 | 6 | 12 | 9 | 0 | 0 | 0 | 54.1 | 65 | 27 | 20 | 27 | 4.47 | — | -1,761 | ||
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.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1994 | TEX | AL | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1995 | TEX | AL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 2 seasons | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 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 (24 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 7 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 5 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 7 | 35.1 | 46 | 19 | 10 | 19 | 4.84 |
| Away | 5 | 19.0 | 19 | 8 | 10 | 8 | 3.79 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1995-04-26 | TEX | NYY | — | 0.1 | 2 | 1 | 1 | 0 | 0 | 0 |
| 1994-08-08 | TEX | SEA | L | 4.1 | 6 | 7 | 6 | 1 | 0 | 2 |
| 1994-08-03 | TEX | CHW | — | 4.2 | 4 | 0 | 0 | 1 | 0 | 0 |
| 1994-07-27 | TEX | MIN | L | 7.1 | 8 | 1 | 1 | 0 | 4 | 0 |
| 1994-07-20 | TEX | CLE | — | 1.2 | 3 | 3 | 1 | 2 | 0 | 2 |
| 1994-07-15 | TEX | TOR | L | 5.0 | 6 | 7 | 3 | 3 | 5 | 0 |
| 1994-07-10 | TEX | DET | — | 5.0 | 2 | 0 | 0 | 1 | 5 | 0 |
| 1994-07-06 | TEX | CLE | L | 0.2 | 4 | 6 | 0 | 2 | 0 | 1 |
| 1994-07-01 | TEX | DET | — | 4.2 | 8 | 5 | 5 | 1 | 6 | 2 |
| 1994-06-26 | TEX | LAA | L | 7.0 | 7 | 4 | 4 | 3 | 3 | 1 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 12 |
College History
| School Name | City | State | Years Attended |
|---|---|---|---|
| University of Missouri Columbia | Columbia | MO | 1989, 1990, 1991, 1992 |
John Dettmer: the record in brief
John Dettmer played a first major league game on June 16, 1994 and a last one on April 26, 1995. All of the seasons listed were played for the Texas Rangers. At 6'0" and 185 pounds, Dettmer is listed as a pitcher. Dettmer threw and hit right-handed, per the bio block. The recorded birth is March 4, 1970, in Cahokia, IL, USA. The bio lists the given name John Franklin.
Across 12 games (9 starts), Dettmer recorded 0 wins against 6 losses with a 4.47 ERA. The same table counts 27 strikeouts. Dettmer's 4.47 ERA was close to the 4.48 league figure for those seasons. Among the heaviest workloads, the lowest ERA was 4.33 in 1994, when the league's was 4.51.
Dettmer's college years, 1989, 1990, 1991, and 1992, were spent at University of Missouri Columbia. The game-log section draws on 24 games of Retrosheet box scores for Dettmer.
The position breakdown shows 12 games, all at pitcher. Fielding on the mound produced 5 putouts and 6 assists against 0 errors.
Frequently Asked Questions about John Dettmer
- What years did John Dettmer play?
- John Dettmer played in Major League Baseball from 1994 to 1995.
- Was John Dettmer a pitcher?
- Yes. John Dettmer pitched in the major leagues, recording 0 wins and 27 strikeouts.
- What was John Dettmer's career ERA?
- John Dettmer finished with a 4.47 career ERA, going 0-6 with 27 strikeouts.
- How many strikeouts did John Dettmer have?
- John Dettmer recorded 27 career strikeouts.
- Is John Dettmer in the Hall of Fame?
- No. John Dettmer has not been inducted into the National Baseball Hall of Fame.
- What teams did John Dettmer play for?
- John Dettmer played for the Texas Rangers.