Kyle Harrison
Pitcher · Career Stats, Bio & Records (2023-2026)
Kyle Harrison is a pitcher who has played in Major League Baseball since 2023 for the San Francisco Giants, the Boston Red Sox, and the Milwaukee Brewers, a span of 4 seasons. Across 70 career appearances, he has gone 20-14 with a 4.32 ERA and 332 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 / L
- Height / Weight
- 6'2" / 200 lb
- MLB Debut
- 2023-08-22
Full name: Kyle Christopher Harrison
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFN | NL | 1 | 1 | 7 | 7 | 0 | 0 | 0 | 34.2 | 29 | 16 | 11 | 35 | 4.15 | 4.33 (+4%) | -1041.9 |
| 2024 | SFN | NL | 7 | 7 | 24 | 24 | 0 | 0 | 0 | 124.1 | 125 | 63 | 42 | 118 | 4.56 | 4.08 (-12%) | -791.4 |
| 2025 | SFN | NL | 1 | 1 | 8 | 4 | 0 | 0 | 0 | 23.2 | 21 | 12 | 9 | 25 | 4.56 | 4.16 (-10%) | -119.5 |
| 2025 | BOS | AL | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 12.0 | 14 | 4 | 5 | 13 | 3.00 | 4.16 (+28%) | 508.3 |
| 2026 | MIL | NL | 11 | 5 | 28 | 24 | 0 | 0 | 0 | 115.2 | 120 | 54 | 36 | 141 | 4.20 | 4.18 (-1%) | - |
| Career · 5 seasons | 20 | 14 | 70 | 61 | 0 | 0 | 0 | 310.1 | 309 | 149 | 103 | 332 | 4.32 | — | -1,445 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | SFN | NL | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2024 | SFN | NL | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2025 | SFN | NL | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2025 | BOS | AL | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 4 seasons | 42 | 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 (84 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 20 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 22 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 20 | 93.0 | 97 | 45 | 28 | 99 | 4.35 |
| Away | 22 | 101.2 | 92 | 50 | 39 | 92 | 4.43 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-09-26 | BOS | DET | — | 3.0 | 7 | 3 | 3 | 3 | 6 | 0 |
| 2025-09-20 | BOS | TBR | — | 6.0 | 4 | 1 | 1 | 2 | 5 | 0 |
| 2025-09-10 | BOS | OAK | — | 3.0 | 3 | 0 | 0 | 0 | 2 | 0 |
| 2025-06-10 | SFG | COL | — | 5.0 | 4 | 3 | 3 | 2 | 6 | 2 |
| 2025-06-04 | SFG | SDP | — | 4.1 | 9 | 5 | 5 | 1 | 3 | 0 |
| 2025-05-30 | SFG | MIA | W | 5.0 | 1 | 0 | 0 | 3 | 5 | 0 |
| 2025-05-24 | SFG | WAS | L | 4.0 | 5 | 2 | 2 | 0 | 4 | 1 |
| 2025-05-20 | SFG | KCR | — | 1.1 | 1 | 1 | 1 | 0 | 2 | 0 |
| 2025-05-13 | SFG | AZ | — | 1.0 | 1 | 1 | 1 | 0 | 0 | 1 |
| 2025-05-09 | SFG | MIN | — | 2.0 | 0 | 0 | 0 | 3 | 3 | 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 | 42 |
Kyle Harrison: the record in brief
Kyle Harrison made a major league debut on August 22, 2023 and is still active, so the totals on this page keep changing. The season rows list, in order, the San Francisco Giants (2023 through 2025) and the Boston Red Sox (2025). Born on August 12, 2001, in San Jose, CA, USA, Harrison is listed as a pitcher and hit right-handed while throwing left-handed. Size on record: 6-foot-2 and 200 pounds. The given name on file is Kyle Christopher Harrison.
Across 70 games (61 starts), Harrison has recorded 20 wins against 14 losses with a 4.32 ERA. The same table counts 332 strikeouts. Harrison's 4.32 ERA was close to the 4.19 league figure for those seasons. 2026 brought Harrison a season-high 11 wins. In 2026, one of the busiest seasons, Harrison posted a 4.20 ERA; the league figure that year was 4.18.
Harrison's game-by-game log, linked below the splits, holds 84 games from Retrosheet.
Every defensive appearance on record for Harrison, 42 games, came at pitcher. Fielding on the mound produced 4 putouts and 16 assists against 0 errors.
Frequently Asked Questions about Kyle Harrison
- What years did Kyle Harrison play?
- Kyle Harrison played in Major League Baseball from 2023 to 2026.
- Was Kyle Harrison a pitcher?
- Yes. Kyle Harrison pitched in the major leagues, recording 20 wins and 332 strikeouts.
- What was Kyle Harrison's career ERA?
- Kyle Harrison finished with a 4.32 career ERA, going 20-14 with 332 strikeouts.
- How many strikeouts did Kyle Harrison have?
- Kyle Harrison recorded 332 career strikeouts.
- Is Kyle Harrison in the Hall of Fame?
- No. Kyle Harrison has not been inducted into the National Baseball Hall of Fame.
- What teams did Kyle Harrison play for?
- Kyle Harrison played for the San Francisco Giants, the Boston Red Sox, and the Milwaukee Brewers.