Justin Dunn
Pitcher · Career Stats, Bio & Records (2019-2022)
Justin Dunn was a pitcher who played in Major League Baseball from 2019 to 2022 for the Seattle Mariners and the Cincinnati Reds, a span of 4 seasons. Across 32 career appearances, he went 6-7 with a 4.44 ERA and 113 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
- 6'2" / 185 lb
- MLB Debut
- 2019-09-12
- Last Game
- 2022-09-11
Full name: Justin Warren Dunn
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | SEA | AL | 0 | 0 | 4 | 4 | 0 | 0 | 0 | 6.2 | 2 | 2 | 9 | 5 | 2.70 | — | 0.0 |
| 2020 | SEA | AL | 4 | 1 | 10 | 10 | 0 | 0 | 0 | 45.2 | 31 | 22 | 31 | 38 | 4.34 | 4.45 (+3%) | -2384.4 |
| 2021 | SEA | AL | 1 | 3 | 11 | 11 | 0 | 0 | 0 | 50.1 | 37 | 21 | 29 | 49 | 3.75 | 4.27 (+12%) | -596.5 |
| 2022 | CIN | NL | 1 | 3 | 7 | 7 | 0 | 0 | 0 | 31.0 | 32 | 21 | 17 | 21 | 6.10 | 3.97 (-54%) | -3361.7 |
| Career · 4 seasons | 6 | 7 | 32 | 32 | 0 | 0 | 0 | 133.2 | 102 | 66 | 86 | 113 | 4.44 | — | -6,343 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32 | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | .250 | .250 | .500 | .750 | 0 |
Career AVG .250 vs. league average .246 across their career seasons — near league average.
Career OBP .250 vs. league average .318 across their career seasons — 21.3% below league average.
Career SLG .500 vs. league average .414 across their career seasons — +20.8% above league average.
Career OPS .750 vs. league average .732 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | SEA | AL | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | — | — | — | — | 0.0 |
| 2020 | SEA | AL | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2021 | SEA | AL | 11 | 3 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | .333 | — | — | — | — | 0.0 |
| 2022 | CIN | NL | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 4 seasons | 32 | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | .250 | — | — | — | — | 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 (64 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 13 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 19 | 4 | 0 | 1 | 0 | 1 | .250 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 13 | 51.2 | 31 | 20 | 33 | 53 | 3.48 |
| Away | 19 | 82.0 | 71 | 46 | 53 | 60 | 5.05 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022-09-11 | CIN | MIL | L | 3.0 | 6 | 6 | 6 | 3 | 1 | 2 |
| 2022-09-06 | CIN | CHC | — | 4.2 | 4 | 3 | 3 | 4 | 1 | 2 |
| 2022-08-30 | CIN | STL | — | 4.0 | 3 | 1 | 1 | 0 | 4 | 1 |
| 2022-08-25 | CIN | PHI | L | 6.0 | 4 | 2 | 2 | 2 | 5 | 1 |
| 2022-08-20 | CIN | PIT | W | 5.0 | 3 | 1 | 1 | 4 | 4 | 1 |
| 2022-08-14 | CIN | CHC | — | 3.2 | 7 | 5 | 5 | 2 | 4 | 3 |
| 2022-08-08 | CIN | NYN | L | 4.2 | 5 | 3 | 3 | 2 | 2 | 1 |
| 2021-06-17 | SEA | TBR | — | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2021-06-11 | SEA | CLE | L | 3.0 | 9 | 5 | 5 | 2 | 3 | 1 |
| 2021-05-29 | SEA | TEX | — | 5.2 | 2 | 1 | 1 | 2 | 8 | 0 |
Fielding Statistics
Career Fielding Totals by Position
Season-by-Season Fielding
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 32 |
Justin Dunn: the record in brief
September 12, 2019 and September 11, 2022 bracket Justin Dunn's time in the majors: the debut and the last game on record. By club, Dunn's seasons break down as the Seattle Mariners (2019 through 2021) and the Cincinnati Reds (2022). Dunn is listed as a pitcher at 185 pounds on a 6-foot-2 frame. Dunn both batted and threw right-handed, per the bio block. The recorded birth is September 22, 1995, in Freeport, NY, USA. Dunn's full given name, per the bio, is Justin Warren Dunn.
Dunn went 6-7 with a 4.44 ERA in 32 games, 32 of them starts. Also on Dunn's record: 113 strikeouts. Dunn's 4.44 ERA was close to the 4.27 league figure for those seasons. Among the heaviest workloads, the lowest ERA was 3.75 in 2021, when the league's was 4.27.
Dunn's game-by-game log, linked below the splits, holds 64 games from Retrosheet.
Every defensive appearance on record for Dunn, 32 games, came at pitcher. On the mound, the fielding record shows 1 errors alongside 8 putouts and 7 assists.
Frequently Asked Questions about Justin Dunn
- What years did Justin Dunn play?
- Justin Dunn played in Major League Baseball from 2019 to 2022.
- Was Justin Dunn a pitcher?
- Yes. Justin Dunn pitched in the major leagues, recording 6 wins and 113 strikeouts.
- How many home runs did Justin Dunn hit?
- Justin Dunn hit 0 career home runs with 1 hit.
- What teams did Justin Dunn play for?
- Justin Dunn played for 2 teams: the Seattle Mariners (2019–2021) and the Cincinnati Reds (2022).
- What were Justin Dunn's career stats?
- In 32 games, Justin Dunn went 6-7 with a 4.44 ERA, 113 strikeouts, and 133.2 innings pitched.
- What position did Justin Dunn play?
- Justin Dunn played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Justin Dunn and how much did he weigh?
- Justin Dunn was listed at 6 feet 2 inches and 185 pounds.
- What was Justin Dunn's career ERA?
- Justin Dunn finished with a 4.44 career ERA, going 6-7 with 113 strikeouts.
- How many strikeouts did Justin Dunn have?
- Justin Dunn recorded 113 career strikeouts.
- Is Justin Dunn in the Hall of Fame?
- No. Justin Dunn has not been inducted into the National Baseball Hall of Fame.