Matthew Bollenbacher
Washington Nationals (A+)P
Age: 25
Bats/Throws: R/R
6'1" / 203
DOB: 11/9/1999
(25 years, 8 months, 26 days)
P
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Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 23 | 1 | 0 | 0 | 3 | 0 | 3.2 | 2.45 | 2.45 | 0.00 | .250 | 75.0% | 33.3% | 0.0% | 2.45 | 4.22 | 5.06 | ||||||
| 2024 | WSN | A | 24 | 2 | 2 | 3 | 35 | 0 | 58.1 | 10.03 | 2.01 | 0.31 | .377 | 70.7% | 42.9% | 4.4% | 3.39 | 2.67 | 2.92 | ||||||
| 2025 | Steamer | PROJ | 25 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.48 | 5.26 | 1.36 | .293 | 69.7% | 42.6% | 5.52 | 5.81 | 5.72 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 0 | 1.6 | 5.46 | 3.43 | 1.42 | .291 | 64.4% | 5.42 | 5.28 | 0.0 | ||||||||
| 2025 | WSN | A | 25 | 1 | 1 | 0 | 27 | 0 | 34.1 | 6.55 | 3.67 | 0.26 | .262 | 72.8% | 39.0% | 2.9% | 3.15 | 3.85 | 4.27 | ||||||
| 2025 | WSN | A+ | 25 | 0 | 0 | 0 | 4 | 0 | 5.1 | 5.06 | 0.00 | 0.00 | .133 | 50.0% | 26.7% | 0.0% | 1.69 | 2.32 | 4.45 | ||||||
| 2025 | WSN | AAA | 25 | 0 | 0 | 0 | 2 | 0 | 3.2 | 0.00 | 14.73 | 2.45 | .091 | 69.8% | 50.0% | 33.3% | 9.82 | 13.58 | 11.43 | ||||||
| 2025 | WSN | MiLB | 25 | 1 | 1 | 0 | 33 | 0 | 43.1 | 5.82 | 4.15 | 0.42 | .233 | 71.4% | 38.6% | 4.3% | 3.53 | 4.48 | 4.90 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.52 | 3.98 | 1.30 | .291 | 70.3% | 4.98 | 5.23 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 0 | 1.4 | 4.43 | 3.93 | 1.45 | .286 | 62.2% | 5.86 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 23 | 1 | 0 | 0 | 3 | 0 | 3.2 | 2.45 | 2.45 | 0.00 | .250 | 75.0% | 33.3% | 0.0% | 2.45 | 4.22 | 5.06 | ||||||
| 2024 | WSN | A | 24 | 2 | 2 | 3 | 35 | 0 | 58.1 | 10.03 | 2.01 | 0.31 | .377 | 70.7% | 42.9% | 4.4% | 3.39 | 2.67 | 2.92 | ||||||
| 2025 | Steamer | PROJ | 25 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.48 | 5.26 | 1.36 | .293 | 69.7% | 42.6% | 5.52 | 5.81 | 5.72 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 0 | 1.6 | 5.46 | 3.43 | 1.42 | .291 | 64.4% | 5.42 | 5.28 | 0.0 | ||||||||
| 2025 | WSN | A | 25 | 1 | 1 | 0 | 27 | 0 | 34.1 | 6.55 | 3.67 | 0.26 | .262 | 72.8% | 39.0% | 2.9% | 3.15 | 3.85 | 4.27 | ||||||
| 2025 | WSN | A+ | 25 | 0 | 0 | 0 | 4 | 0 | 5.1 | 5.06 | 0.00 | 0.00 | .133 | 50.0% | 26.7% | 0.0% | 1.69 | 2.32 | 4.45 | ||||||
| 2025 | WSN | AAA | 25 | 0 | 0 | 0 | 2 | 0 | 3.2 | 0.00 | 14.73 | 2.45 | .091 | 69.8% | 50.0% | 33.3% | 9.82 | 13.58 | 11.43 | ||||||
| 2025 | WSN | MiLB | 25 | 1 | 1 | 0 | 33 | 0 | 43.1 | 5.82 | 4.15 | 0.42 | .233 | 71.4% | 38.6% | 4.3% | 3.53 | 4.48 | 4.90 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.52 | 3.98 | 1.30 | .291 | 70.3% | 4.98 | 5.23 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 0 | 1.4 | 4.43 | 3.93 | 1.45 | .286 | 62.2% | 5.86 | 5.73 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 1 | 0 | 2.45 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 3.2 | 14 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | |
| 2024 | WSN | A | 2 | 2 | 3.39 | 35 | 0 | 0 | 0 | 3 | 5 | 1 | 58.1 | 251 | 65 | 26 | 22 | 2 | 13 | 0 | 4 | 1 | 0 | 65 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.42 | 1 | 0 | 0 | 0 | 0 | 1.6 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | WSN | A | 1 | 1 | 3.15 | 27 | 0 | 0 | 0 | 0 | 6 | 0 | 34.1 | 145 | 28 | 13 | 12 | 1 | 14 | 0 | 2 | 0 | 0 | 25 | |
| 2025 | WSN | A+ | 0 | 0 | 1.69 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 18 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | |
| 2025 | WSN | AAA | 0 | 0 | 9.82 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 | 20 | 2 | 4 | 4 | 1 | 6 | 0 | 2 | 0 | 0 | 0 | |
| 2025 | WSN | MiLB | 1 | 1 | 3.53 | 33 | 0 | 0 | 0 | 0 | 6 | 0 | 43.1 | 183 | 32 | 18 | 17 | 2 | 20 | 0 | 4 | 1 | 0 | 28 | |
| 2025 | Steamer | ROS | 0 | 0 | 4.98 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.86 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 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 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 1 | 0 | 2.45 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 3.2 | 14 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | |
| 2024 | WSN | A | 2 | 2 | 3.39 | 35 | 0 | 0 | 0 | 3 | 5 | 1 | 58.1 | 251 | 65 | 26 | 22 | 2 | 13 | 0 | 4 | 1 | 0 | 65 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.52 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.42 | 1 | 0 | 0 | 0 | 0 | 1.6 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | WSN | A | 1 | 1 | 3.15 | 27 | 0 | 0 | 0 | 0 | 6 | 0 | 34.1 | 145 | 28 | 13 | 12 | 1 | 14 | 0 | 2 | 0 | 0 | 25 | |
| 2025 | WSN | A+ | 0 | 0 | 1.69 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 18 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | |
| 2025 | WSN | AAA | 0 | 0 | 9.82 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 | 20 | 2 | 4 | 4 | 1 | 6 | 0 | 2 | 0 | 0 | 0 | |
| 2025 | WSN | MiLB | 1 | 1 | 3.53 | 33 | 0 | 0 | 0 | 0 | 6 | 0 | 43.1 | 183 | 32 | 18 | 17 | 2 | 20 | 0 | 4 | 1 | 0 | 28 | |
| 2025 | Steamer | ROS | 0 | 0 | 4.98 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.86 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAverages
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 2.45 | 2.45 | 1.00 | 0.00 | 7.1% | 7.1% | 0.0% | .231 | 1.09 | .250 | 75.0% | 48 | 84 | 4.22 | ||||
| 2024 | WSN | A | 10.03 | 2.01 | 5.00 | 0.31 | 25.9% | 5.2% | 20.7% | .278 | 1.34 | .377 | 70.7% | 89 | 69 | 2.67 | ||||
| 2025 | Steamer | PROJ | 5.48 | 5.26 | 1.04 | 1.36 | 13.2% | 12.7% | 0.6% | .275 | 1.67 | .293 | 69.7% | 5.81 | ||||||
| 2025 | OOPSY | PROJ | 5.46 | 3.43 | 1.59 | 1.42 | 14.0% | 8.8% | 5.2% | .274 | 1.45 | .291 | 64.4% | 5.28 | ||||||
| 2025 | WSN | A | 6.55 | 3.67 | 1.79 | 0.26 | 17.2% | 9.7% | 7.6% | .217 | 1.22 | .262 | 72.8% | 80 | 97 | 3.85 | ||||
| 2025 | WSN | A+ | 5.06 | 0.00 | 3.00 | 0.00 | 16.7% | 0.0% | 16.7% | .111 | 0.38 | .133 | 50.0% | 43 | 58 | 2.32 | ||||
| 2025 | WSN | AAA | 0.00 | 14.73 | 0.00 | 2.45 | 0.0% | 30.0% | -30.0% | .167 | 2.18 | .091 | 69.8% | 212 | 295 | 13.58 | ||||
| 2025 | WSN | MiLB | 5.82 | 4.15 | 1.40 | 0.42 | 15.3% | 10.9% | 4.4% | .201 | 1.20 | .233 | 71.4% | 86 | 109 | 4.48 | ||||
| 2025 | Steamer | ROS | 5.52 | 3.98 | 1.39 | 1.30 | 13.8% | 9.9% | 3.8% | .272 | 1.52 | .291 | 70.3% | 5.23 | ||||||
| 2025 | OOPSY | ROS | 4.43 | 3.93 | 1.13 | 1.45 | 11.4% | 10.1% | 1.3% | .280 | 1.51 | .286 | 62.2% | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | WSN | CPX | 2.45 | 2.45 | 1.00 | 0.00 | 7.1% | 7.1% | 0.0% | .231 | 1.09 | .250 | 75.0% | 48 | 84 | 4.22 | ||||
| 2024 | WSN | A | 10.03 | 2.01 | 5.00 | 0.31 | 25.9% | 5.2% | 20.7% | .278 | 1.34 | .377 | 70.7% | 89 | 69 | 2.67 | ||||
| 2025 | Steamer | PROJ | 5.48 | 5.26 | 1.04 | 1.36 | 13.2% | 12.7% | 0.6% | .275 | 1.67 | .293 | 69.7% | 5.81 | ||||||
| 2025 | OOPSY | PROJ | 5.46 | 3.43 | 1.59 | 1.42 | 14.0% | 8.8% | 5.2% | .274 | 1.45 | .291 | 64.4% | 5.28 | ||||||
| 2025 | WSN | A | 6.55 | 3.67 | 1.79 | 0.26 | 17.2% | 9.7% | 7.6% | .217 | 1.22 | .262 | 72.8% | 80 | 97 | 3.85 | ||||
| 2025 | WSN | A+ | 5.06 | 0.00 | 3.00 | 0.00 | 16.7% | 0.0% | 16.7% | .111 | 0.38 | .133 | 50.0% | 43 | 58 | 2.32 | ||||
| 2025 | WSN | AAA | 0.00 | 14.73 | 0.00 | 2.45 | 0.0% | 30.0% | -30.0% | .167 | 2.18 | .091 | 69.8% | 212 | 295 | 13.58 | ||||
| 2025 | WSN | MiLB | 5.82 | 4.15 | 1.40 | 0.42 | 15.3% | 10.9% | 4.4% | .201 | 1.20 | .233 | 71.4% | 86 | 109 | 4.48 | ||||
| 2025 | Steamer | ROS | 5.52 | 3.98 | 1.39 | 1.30 | 13.8% | 9.9% | 3.8% | .272 | 1.52 | .291 | 70.3% | 5.23 | ||||||
| 2025 | OOPSY | ROS | 4.43 | 3.93 | 1.13 | 1.45 | 11.4% | 10.1% | 1.3% | .280 | 1.51 | .286 | 62.2% | 5.73 |
Preseason ProjectionsIn-Season ProjectionsMinor Leagues
| Season | Team | Level | Events Events - The number of Batted Balls (TBF - SO - BB - HBP) | EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat | maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat. | LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat | Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage | Barrel% Barrel% - Percentage of batted balls that are classified as barrels | HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher | HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | WSN | AAA | 12 | 94.7 | 110.3 | 9.8 | 6 | 50.0% | 9.82 |
| Season | Team | Level | Events Events - The number of Batted Balls (TBF - SO - BB - HBP) | EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat | maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat. | LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat | Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage | Barrel% Barrel% - Percentage of batted balls that are classified as barrels | HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher | HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | WSN | AAA | 12 | 94.7 | 110.3 | 9.8 | 6 | 50.0% | 9.82 |
