Matt Duffy
Boston Red Sox (A)P
Age: 23
Bats/Throws: L/R
6'2" / 205
DOB: 10/4/2001
(23 years, 6 months, 27 days)
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 19 | 3 | 0 | 0 | 6 | 3 | 27.0 | 10.00 | 1.67 | 0.33 | .286 | 72.5% | 2.67 | 2.35 | |||||||||
| 2022 | CAN | NCAA | 20 | 8 | 2 | 0 | 17 | 16 | 104.0 | 10.73 | 2.25 | 1.13 | .279 | 68.7% | 3.81 | 3.51 | |||||||||
| 2023 | CAN | NCAA | 21 | 6 | 3 | 0 | 14 | 14 | 80.2 | 13.28 | 3.12 | 1.34 | .302 | 73.6% | 4.13 | 3.56 | |||||||||
| 2023 | BOS | CPX | 21 | 0 | 0 | 0 | 1 | 0 | 1.0 | 9.00 | 0.00 | 0.00 | .000 | 100.0% | 50.0% | 0.0% | 0.00 | 1.95 | 2.97 | ||||||
| 2023 | BOS | A | 21 | 0 | 1 | 0 | 2 | 2 | 3.1 | 10.80 | 5.40 | 5.40 | .333 | 47.6% | 37.5% | 66.7% | 13.50 | 11.80 | 4.93 | ||||||
| 2023 | BOS | MiLB | 21 | 0 | 1 | 0 | 3 | 2 | 4.1 | 10.38 | 4.15 | 4.15 | .250 | 47.6% | 40.0% | 50.0% | 10.38 | 9.53 | 4.48 | ||||||
| 2024 | BOS | A | 22 | 4 | 5 | 0 | 22 | 21 | 98.2 | 9.12 | 2.46 | 0.73 | .280 | 76.6% | 37.5% | 8.8% | 2.83 | 3.58 | 3.36 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.25 | 4.28 | 1.55 | .303 | 67.0% | 41.2% | 5.97 | 5.81 | 5.56 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 5.08 | 3.45 | 1.46 | .302 | 58.8% | 5.96 | 5.43 | 0.0 | ||||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.25 | 4.43 | 1.50 | .303 | 67.1% | 5.95 | 5.69 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 19 | 3 | 0 | 0 | 6 | 3 | 27.0 | 10.00 | 1.67 | 0.33 | .286 | 72.5% | 2.67 | 2.35 | |||||||||
| 2022 | CAN | NCAA | 20 | 8 | 2 | 0 | 17 | 16 | 104.0 | 10.73 | 2.25 | 1.13 | .279 | 68.7% | 3.81 | 3.51 | |||||||||
| 2023 | CAN | NCAA | 21 | 6 | 3 | 0 | 14 | 14 | 80.2 | 13.28 | 3.12 | 1.34 | .302 | 73.6% | 4.13 | 3.56 | |||||||||
| 2023 | BOS | CPX | 21 | 0 | 0 | 0 | 1 | 0 | 1.0 | 9.00 | 0.00 | 0.00 | .000 | 100.0% | 50.0% | 0.0% | 0.00 | 1.95 | 2.97 | ||||||
| 2023 | BOS | A | 21 | 0 | 1 | 0 | 2 | 2 | 3.1 | 10.80 | 5.40 | 5.40 | .333 | 47.6% | 37.5% | 66.7% | 13.50 | 11.80 | 4.93 | ||||||
| 2023 | BOS | MiLB | 21 | 0 | 1 | 0 | 3 | 2 | 4.1 | 10.38 | 4.15 | 4.15 | .250 | 47.6% | 40.0% | 50.0% | 10.38 | 9.53 | 4.48 | ||||||
| 2024 | BOS | A | 22 | 4 | 5 | 0 | 22 | 21 | 98.2 | 9.12 | 2.46 | 0.73 | .280 | 76.6% | 37.5% | 8.8% | 2.83 | 3.58 | 3.36 | ||||||
| 2025 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.25 | 4.28 | 1.55 | .303 | 67.0% | 41.2% | 5.97 | 5.81 | 5.56 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 5.08 | 3.45 | 1.46 | .302 | 58.8% | 5.96 | 5.43 | 0.0 | ||||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.25 | 4.43 | 1.50 | .303 | 67.1% | 5.95 | 5.69 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege
| 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 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 3 | 0 | 2.67 | 6 | 3 | 1 | 0 | 0 | 27.0 | 109 | 21 | 9 | 8 | 1 | 5 | 3 | 0 | 0 | 30 | ||||
| 2022 | CAN | NCAA | 8 | 2 | 3.81 | 17 | 16 | 1 | 1 | 0 | 104.0 | 436 | 86 | 51 | 44 | 13 | 26 | 11 | 4 | 0 | 124 | ||||
| 2023 | CAN | NCAA | 6 | 3 | 4.13 | 14 | 14 | 0 | 0 | 0 | 80.2 | 340 | 64 | 39 | 37 | 12 | 28 | 9 | 7 | 0 | 119 | ||||
| 2023 | BOS | CPX | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2023 | BOS | A | 0 | 1 | 13.50 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3.1 | 15 | 4 | 5 | 5 | 2 | 2 | 0 | 1 | 0 | 0 | 4 | |
| 2023 | BOS | MiLB | 0 | 1 | 10.38 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 4.1 | 18 | 4 | 5 | 5 | 2 | 2 | 0 | 1 | 0 | 0 | 5 | |
| 2024 | BOS | A | 4 | 5 | 2.83 | 22 | 21 | 0 | 0 | 0 | 0 | 0 | 98.2 | 401 | 81 | 35 | 31 | 8 | 27 | 0 | 5 | 3 | 0 | 100 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.97 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.96 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 5 | 3 | 3 | 1 | 2 | 0 | 0 | 2 | |||||
| 2025 | Steamer | ROS | 0 | 0 | 5.95 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 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 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 3 | 0 | 2.67 | 6 | 3 | 1 | 0 | 0 | 27.0 | 109 | 21 | 9 | 8 | 1 | 5 | 3 | 0 | 0 | 30 | ||||
| 2022 | CAN | NCAA | 8 | 2 | 3.81 | 17 | 16 | 1 | 1 | 0 | 104.0 | 436 | 86 | 51 | 44 | 13 | 26 | 11 | 4 | 0 | 124 | ||||
| 2023 | CAN | NCAA | 6 | 3 | 4.13 | 14 | 14 | 0 | 0 | 0 | 80.2 | 340 | 64 | 39 | 37 | 12 | 28 | 9 | 7 | 0 | 119 | ||||
| 2023 | BOS | CPX | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2023 | BOS | A | 0 | 1 | 13.50 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3.1 | 15 | 4 | 5 | 5 | 2 | 2 | 0 | 1 | 0 | 0 | 4 | |
| 2023 | BOS | MiLB | 0 | 1 | 10.38 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 4.1 | 18 | 4 | 5 | 5 | 2 | 2 | 0 | 1 | 0 | 0 | 5 | |
| 2024 | BOS | A | 4 | 5 | 2.83 | 22 | 21 | 0 | 0 | 0 | 0 | 0 | 98.2 | 401 | 81 | 35 | 31 | 8 | 27 | 0 | 5 | 3 | 0 | 100 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.97 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.96 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 5 | 3 | 3 | 1 | 2 | 0 | 0 | 2 | |||||
| 2025 | Steamer | ROS | 0 | 0 | 5.95 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAveragesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 10.00 | 1.67 | 6.00 | 0.33 | 27.5% | 4.6% | 22.9% | .208 | 0.96 | .286 | 72.5% | 2.35 | ||||||
| 2022 | CAN | NCAA | 10.73 | 2.25 | 4.77 | 1.13 | 28.4% | 6.0% | 22.5% | .216 | 1.08 | .279 | 68.7% | 3.51 | ||||||
| 2023 | CAN | NCAA | 13.28 | 3.12 | 4.25 | 1.34 | 35.0% | 8.2% | 26.8% | .211 | 1.14 | .302 | 73.6% | 3.56 | ||||||
| 2023 | BOS | CPX | 9.00 | 0.00 | 1.00 | 0.00 | 33.3% | 0.0% | 33.3% | .000 | 0.00 | .000 | 100.0% | 0 | 37 | 1.95 | ||||
| 2023 | BOS | A | 10.80 | 5.40 | 2.00 | 5.40 | 26.7% | 13.3% | 13.3% | .333 | 1.80 | .333 | 47.6% | 310 | 283 | 11.80 | ||||
| 2023 | BOS | MiLB | 10.38 | 4.15 | 2.50 | 4.15 | 27.8% | 11.1% | 16.7% | .267 | 1.38 | .250 | 47.6% | 238 | 226 | 9.53 | ||||
| 2024 | BOS | A | 9.12 | 2.46 | 3.70 | 0.73 | 24.9% | 6.7% | 18.2% | .220 | 1.09 | .280 | 76.6% | 70 | 93 | 3.58 | ||||
| 2025 | Steamer | PROJ | 5.25 | 4.28 | 1.23 | 1.55 | 12.8% | 10.4% | 2.4% | .289 | 1.65 | .303 | 67.0% | 5.81 | ||||||
| 2025 | OOPSY | PROJ | 5.08 | 3.45 | 1.47 | 1.46 | 13.8% | 9.4% | 4.4% | .286 | 1.43 | .302 | 58.8% | 5.43 | ||||||
| 2025 | Steamer | ROS | 5.25 | 4.43 | 1.19 | 1.50 | 12.7% | 10.7% | 2.0% | .288 | 1.66 | .303 | 67.1% | 5.69 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | CAN | NCAA | 10.00 | 1.67 | 6.00 | 0.33 | 27.5% | 4.6% | 22.9% | .208 | 0.96 | .286 | 72.5% | 2.35 | ||||||
| 2022 | CAN | NCAA | 10.73 | 2.25 | 4.77 | 1.13 | 28.4% | 6.0% | 22.5% | .216 | 1.08 | .279 | 68.7% | 3.51 | ||||||
| 2023 | CAN | NCAA | 13.28 | 3.12 | 4.25 | 1.34 | 35.0% | 8.2% | 26.8% | .211 | 1.14 | .302 | 73.6% | 3.56 | ||||||
| 2023 | BOS | CPX | 9.00 | 0.00 | 1.00 | 0.00 | 33.3% | 0.0% | 33.3% | .000 | 0.00 | .000 | 100.0% | 0 | 37 | 1.95 | ||||
| 2023 | BOS | A | 10.80 | 5.40 | 2.00 | 5.40 | 26.7% | 13.3% | 13.3% | .333 | 1.80 | .333 | 47.6% | 310 | 283 | 11.80 | ||||
| 2023 | BOS | MiLB | 10.38 | 4.15 | 2.50 | 4.15 | 27.8% | 11.1% | 16.7% | .267 | 1.38 | .250 | 47.6% | 238 | 226 | 9.53 | ||||
| 2024 | BOS | A | 9.12 | 2.46 | 3.70 | 0.73 | 24.9% | 6.7% | 18.2% | .220 | 1.09 | .280 | 76.6% | 70 | 93 | 3.58 | ||||
| 2025 | Steamer | PROJ | 5.25 | 4.28 | 1.23 | 1.55 | 12.8% | 10.4% | 2.4% | .289 | 1.65 | .303 | 67.0% | 5.81 | ||||||
| 2025 | OOPSY | PROJ | 5.08 | 3.45 | 1.47 | 1.46 | 13.8% | 9.4% | 4.4% | .286 | 1.43 | .302 | 58.8% | 5.43 | ||||||
| 2025 | Steamer | ROS | 5.25 | 4.43 | 1.19 | 1.50 | 12.7% | 10.7% | 2.0% | .288 | 1.66 | .303 | 67.1% | 5.69 |
