Jay Allmer
Boston Red Sox (ST)P
Age: 23
Bats/Throws: R/R
6'5" / 215
DOB: 6/27/2002
(23 years, 9 months, 6 days)
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring Training
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 23 | 5 | 1 | 4 | 28 | 0 | 51.2 | 4.88 | 5.23 | 0.17 | .204 | 72.3% | 56.5% | 2.9% | 2.79 | 4.77 | 5.05 | ||||||
| 2025 | BOS | A+ | 23 | 1 | 0 | 0 | 1 | 0 | 2.0 | 9.00 | 13.50 | 0.00 | .333 | 80.0% | 33.3% | 0.0% | 4.50 | 7.39 | 8.47 | ||||||
| 2025 | BOS | MiLB | 23 | 6 | 1 | 4 | 29 | 0 | 53.2 | 5.03 | 5.53 | 0.17 | .207 | 72.9% | 56.0% | 2.8% | 2.85 | 4.87 | 5.17 | ||||||
| 2026 | BOS | ST | 24 | 1 | 0 | 1 | 4 | 0 | 1.1 | 13.50 | 0.00 | 0.00 | .500 | 100.0% | 0.0% | 0.0% | 0.00 | 0.65 | 3.46 | ||||||
| 2026 | Steamer | PROJ | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.15 | 6.22 | 1.29 | .307 | 68.3% | 46.1% | 6.09 | 6.08 | 5.97 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 24 | 0 | 0 | 0 | 1 | 0 | 1.8 | 3.31 | 4.61 | 1.13 | .304 | 56.3% | 6.38 | 5.73 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.32 | 6.35 | 1.26 | .307 | 68.6% | 6.04 | 6.04 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 24 | 0 | 0 | 0 | 1 | 0 | 1.8 | 3.31 | 4.61 | 1.13 | .304 | 56.3% | 6.38 | 5.73 | 0.0 |
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 23 | 5 | 1 | 4 | 28 | 0 | 51.2 | 4.88 | 5.23 | 0.17 | .204 | 72.3% | 56.5% | 2.9% | 2.79 | 4.77 | 5.05 | ||||||
| 2025 | BOS | A+ | 23 | 1 | 0 | 0 | 1 | 0 | 2.0 | 9.00 | 13.50 | 0.00 | .333 | 80.0% | 33.3% | 0.0% | 4.50 | 7.39 | 8.47 | ||||||
| 2025 | BOS | MiLB | 23 | 6 | 1 | 4 | 29 | 0 | 53.2 | 5.03 | 5.53 | 0.17 | .207 | 72.9% | 56.0% | 2.8% | 2.85 | 4.87 | 5.17 | ||||||
| 2026 | BOS | ST | 24 | 1 | 0 | 1 | 4 | 0 | 1.1 | 13.50 | 0.00 | 0.00 | .500 | 100.0% | 0.0% | 0.0% | 0.00 | 0.65 | 3.46 | ||||||
| 2026 | Steamer | PROJ | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.15 | 6.22 | 1.29 | .307 | 68.3% | 46.1% | 6.09 | 6.08 | 5.97 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 24 | 0 | 0 | 0 | 1 | 0 | 1.8 | 3.31 | 4.61 | 1.13 | .304 | 56.3% | 6.38 | 5.73 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 24 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.32 | 6.35 | 1.26 | .307 | 68.6% | 6.04 | 6.04 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 24 | 0 | 0 | 0 | 1 | 0 | 1.8 | 3.31 | 4.61 | 1.13 | .304 | 56.3% | 6.38 | 5.73 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring Training
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 5 | 1 | 2.79 | 28 | 0 | 0 | 0 | 4 | 2 | 0 | 51.2 | 206 | 30 | 19 | 16 | 1 | 30 | 0 | 5 | 7 | 2 | 28 | |
| 2025 | BOS | A+ | 1 | 0 | 4.50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 9 | 1 | 1 | 1 | 0 | 3 | 0 | 1 | 0 | 0 | 2 | |
| 2025 | BOS | MiLB | 6 | 1 | 2.85 | 29 | 0 | 0 | 0 | 4 | 2 | 0 | 53.2 | 215 | 31 | 20 | 17 | 1 | 33 | 0 | 6 | 7 | 2 | 30 | |
| 2026 | BOS | ST | 1 | 0 | 0.00 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 1.1 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.38 | 1 | 0 | 0 | 0 | 0 | 1.8 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 6.04 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.38 | 1 | 0 | 0 | 0 | 0 | 1.8 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 5 | 1 | 2.79 | 28 | 0 | 0 | 0 | 4 | 2 | 0 | 51.2 | 206 | 30 | 19 | 16 | 1 | 30 | 0 | 5 | 7 | 2 | 28 | |
| 2025 | BOS | A+ | 1 | 0 | 4.50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 9 | 1 | 1 | 1 | 0 | 3 | 0 | 1 | 0 | 0 | 2 | |
| 2025 | BOS | MiLB | 6 | 1 | 2.85 | 29 | 0 | 0 | 0 | 4 | 2 | 0 | 53.2 | 215 | 31 | 20 | 17 | 1 | 33 | 0 | 6 | 7 | 2 | 30 | |
| 2026 | BOS | ST | 1 | 0 | 0.00 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 1.1 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.38 | 1 | 0 | 0 | 0 | 0 | 1.8 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 6.04 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.38 | 1 | 0 | 0 | 0 | 0 | 1.8 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingAverages
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 4.88 | 5.23 | 0.93 | 0.17 | 13.6% | 14.6% | -1.0% | .175 | 1.16 | .204 | 72.3% | 67 | 119 | 4.77 | ||||
| 2025 | BOS | A+ | 9.00 | 13.50 | 0.67 | 0.00 | 22.2% | 33.3% | -11.1% | .200 | 2.00 | .333 | 80.0% | 113 | 188 | 7.39 | ||||
| 2025 | BOS | MiLB | 5.03 | 5.53 | 0.91 | 0.17 | 14.0% | 15.3% | -1.4% | .176 | 1.19 | .207 | 72.9% | 68 | 122 | 4.87 | ||||
| 2026 | BOS | ST | 13.50 | 0.00 | 2.00 | 0.00 | 33.3% | 0.0% | 33.3% | .333 | 1.50 | .500 | 100.0% | 0 | 13 | 0.65 | ||||
| 2026 | Steamer | PROJ | 5.15 | 6.22 | 0.83 | 1.29 | 12.0% | 14.5% | -2.5% | .288 | 1.85 | .307 | 68.3% | 6.08 | ||||||
| 2026 | OOPSY | PROJ | 3.31 | 4.61 | 0.72 | 1.13 | 9.1% | 12.7% | -3.6% | .297 | 1.54 | .304 | 56.3% | 5.73 | ||||||
| 2026 | Steamer | ROS | 5.32 | 6.35 | 0.84 | 1.26 | 12.4% | 14.8% | -2.4% | .286 | 1.85 | .307 | 68.6% | 6.04 | ||||||
| 2026 | OOPSY | ROS | 3.31 | 4.61 | 0.72 | 1.13 | 9.1% | 12.7% | -3.6% | .297 | 1.54 | .304 | 56.3% | 5.73 |
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | A | 4.88 | 5.23 | 0.93 | 0.17 | 13.6% | 14.6% | -1.0% | .175 | 1.16 | .204 | 72.3% | 67 | 119 | 4.77 | ||||
| 2025 | BOS | A+ | 9.00 | 13.50 | 0.67 | 0.00 | 22.2% | 33.3% | -11.1% | .200 | 2.00 | .333 | 80.0% | 113 | 188 | 7.39 | ||||
| 2025 | BOS | MiLB | 5.03 | 5.53 | 0.91 | 0.17 | 14.0% | 15.3% | -1.4% | .176 | 1.19 | .207 | 72.9% | 68 | 122 | 4.87 | ||||
| 2026 | BOS | ST | 13.50 | 0.00 | 2.00 | 0.00 | 33.3% | 0.0% | 33.3% | .333 | 1.50 | .500 | 100.0% | 0 | 13 | 0.65 | ||||
| 2026 | Steamer | PROJ | 5.15 | 6.22 | 0.83 | 1.29 | 12.0% | 14.5% | -2.5% | .288 | 1.85 | .307 | 68.3% | 6.08 | ||||||
| 2026 | OOPSY | PROJ | 3.31 | 4.61 | 0.72 | 1.13 | 9.1% | 12.7% | -3.6% | .297 | 1.54 | .304 | 56.3% | 5.73 | ||||||
| 2026 | Steamer | ROS | 5.32 | 6.35 | 0.84 | 1.26 | 12.4% | 14.8% | -2.4% | .286 | 1.85 | .307 | 68.6% | 6.04 | ||||||
| 2026 | OOPSY | ROS | 3.31 | 4.61 | 0.72 | 1.13 | 9.1% | 12.7% | -3.6% | .297 | 1.54 | .304 | 56.3% | 5.73 |
