Leomar Rosario
Houston Astros (A)P
Age: 22
Bats/Throws: R/R
6'6" / 217
DOB: 6/11/2003
(22 years, 1 month, 23 days)
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 19 | 0 | 2 | 0 | 11 | 5 | 28.0 | 9.32 | 8.68 | 0.32 | .286 | 56.7% | 46.4% | 5.0% | 6.43 | 5.20 | 5.24 | ||||||
| 2023 | HOU | CPX | 20 | 1 | 1 | 0 | 6 | 1 | 15.2 | 9.19 | 9.19 | 0.57 | .317 | 67.6% | 42.5% | 9.1% | 6.32 | 5.99 | 5.88 | ||||||
| 2025 | Steamer | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.0 | 4.56 | 8.37 | 1.60 | .299 | 67.0% | 41.8% | 7.36 | 7.41 | 7.07 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 1 | 2.5 | 5.63 | 6.70 | 1.59 | .299 | 66.8% | 6.60 | 6.64 | 0.0 | ||||||||
| 2025 | HOU | CPX | 22 | 0 | 0 | 0 | 4 | 4 | 7.0 | 11.57 | 9.00 | 0.00 | .267 | 63.6% | 60.0% | 0.0% | 2.57 | 4.00 | 4.46 | ||||||
| 2025 | HOU | A | 22 | 1 | 2 | 1 | 11 | 1 | 26.1 | 13.33 | 7.18 | 0.68 | .293 | 67.2% | 47.4% | 9.5% | 5.13 | 3.94 | 3.60 | ||||||
| 2025 | HOU | MiLB | 22 | 1 | 2 | 1 | 15 | 5 | 33.1 | 12.96 | 7.56 | 0.54 | .288 | 66.4% | 50.0% | 8.0% | 4.59 | 3.96 | 3.78 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.11 | 7.09 | 1.37 | .297 | 69.4% | 6.06 | 6.21 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 2.2 | 7.98 | 6.57 | 1.35 | .289 | 69.8% | 5.49 | 5.72 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 19 | 0 | 2 | 0 | 11 | 5 | 28.0 | 9.32 | 8.68 | 0.32 | .286 | 56.7% | 46.4% | 5.0% | 6.43 | 5.20 | 5.24 | ||||||
| 2023 | HOU | CPX | 20 | 1 | 1 | 0 | 6 | 1 | 15.2 | 9.19 | 9.19 | 0.57 | .317 | 67.6% | 42.5% | 9.1% | 6.32 | 5.99 | 5.88 | ||||||
| 2025 | Steamer | PROJ | 22 | 0 | 0 | 0 | 1 | 0 | 1.0 | 4.56 | 8.37 | 1.60 | .299 | 67.0% | 41.8% | 7.36 | 7.41 | 7.07 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 22 | 0 | 0 | 0 | 1 | 1 | 2.5 | 5.63 | 6.70 | 1.59 | .299 | 66.8% | 6.60 | 6.64 | 0.0 | ||||||||
| 2025 | HOU | CPX | 22 | 0 | 0 | 0 | 4 | 4 | 7.0 | 11.57 | 9.00 | 0.00 | .267 | 63.6% | 60.0% | 0.0% | 2.57 | 4.00 | 4.46 | ||||||
| 2025 | HOU | A | 22 | 1 | 2 | 1 | 11 | 1 | 26.1 | 13.33 | 7.18 | 0.68 | .293 | 67.2% | 47.4% | 9.5% | 5.13 | 3.94 | 3.60 | ||||||
| 2025 | HOU | MiLB | 22 | 1 | 2 | 1 | 15 | 5 | 33.1 | 12.96 | 7.56 | 0.54 | .288 | 66.4% | 50.0% | 8.0% | 4.59 | 3.96 | 3.78 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.11 | 7.09 | 1.37 | .297 | 69.4% | 6.06 | 6.21 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 2.2 | 7.98 | 6.57 | 1.35 | .289 | 69.8% | 5.49 | 5.72 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 0 | 2 | 6.43 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 28.0 | 128 | 21 | 22 | 20 | 1 | 27 | 0 | 1 | 10 | 2 | 29 | |
| 2023 | HOU | CPX | 1 | 1 | 6.32 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 15.2 | 75 | 14 | 11 | 11 | 1 | 16 | 0 | 1 | 6 | 1 | 16 | |
| 2025 | Steamer | PROJ | 0 | 0 | 7.36 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 6.60 | 1 | 1 | 0 | 0 | 0 | 2.5 | 12 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 2 | |||||
| 2025 | HOU | CPX | 0 | 0 | 2.57 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 7.0 | 31 | 4 | 4 | 2 | 0 | 7 | 0 | 0 | 1 | 0 | 9 | |
| 2025 | HOU | A | 1 | 2 | 5.13 | 11 | 1 | 0 | 0 | 1 | 0 | 1 | 26.1 | 120 | 19 | 15 | 15 | 2 | 21 | 0 | 0 | 7 | 2 | 39 | |
| 2025 | HOU | MiLB | 1 | 2 | 4.59 | 15 | 5 | 0 | 0 | 1 | 0 | 1 | 33.1 | 151 | 23 | 19 | 17 | 2 | 28 | 0 | 0 | 8 | 2 | 48 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.49 | 1 | 1 | 0 | 0 | 0 | 2.2 | 11 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 2 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 0 | 2 | 6.43 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 28.0 | 128 | 21 | 22 | 20 | 1 | 27 | 0 | 1 | 10 | 2 | 29 | |
| 2023 | HOU | CPX | 1 | 1 | 6.32 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 15.2 | 75 | 14 | 11 | 11 | 1 | 16 | 0 | 1 | 6 | 1 | 16 | |
| 2025 | Steamer | PROJ | 0 | 0 | 7.36 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 6.60 | 1 | 1 | 0 | 0 | 0 | 2.5 | 12 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 2 | |||||
| 2025 | HOU | CPX | 0 | 0 | 2.57 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 7.0 | 31 | 4 | 4 | 2 | 0 | 7 | 0 | 0 | 1 | 0 | 9 | |
| 2025 | HOU | A | 1 | 2 | 5.13 | 11 | 1 | 0 | 0 | 1 | 0 | 1 | 26.1 | 120 | 19 | 15 | 15 | 2 | 21 | 0 | 0 | 7 | 2 | 39 | |
| 2025 | HOU | MiLB | 1 | 2 | 4.59 | 15 | 5 | 0 | 0 | 1 | 0 | 1 | 33.1 | 151 | 23 | 19 | 17 | 2 | 28 | 0 | 0 | 8 | 2 | 48 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.49 | 1 | 1 | 0 | 0 | 0 | 2.2 | 11 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 2 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 9.32 | 8.68 | 1.07 | 0.32 | 22.7% | 21.1% | 1.6% | .210 | 1.71 | .286 | 56.7% | 134 | 111 | 5.20 | ||||
| 2023 | HOU | CPX | 9.19 | 9.19 | 1.00 | 0.57 | 21.3% | 21.3% | 0.0% | .241 | 1.91 | .317 | 67.6% | 121 | 113 | 5.99 | ||||
| 2025 | Steamer | PROJ | 4.56 | 8.37 | 0.54 | 1.60 | 10.1% | 18.6% | -8.5% | .293 | 2.11 | .299 | 67.0% | 7.41 | ||||||
| 2025 | OOPSY | PROJ | 5.63 | 6.70 | 0.84 | 1.59 | 12.7% | 15.1% | -2.4% | .283 | 1.91 | .299 | 66.8% | 6.64 | ||||||
| 2025 | HOU | CPX | 11.57 | 9.00 | 1.29 | 0.00 | 29.0% | 22.6% | 6.5% | .167 | 1.57 | .267 | 63.6% | 63 | 89 | 4.00 | ||||
| 2025 | HOU | A | 13.33 | 7.18 | 1.86 | 0.68 | 32.5% | 17.5% | 15.0% | .192 | 1.52 | .293 | 67.2% | 132 | 99 | 3.94 | ||||
| 2025 | HOU | MiLB | 12.96 | 7.56 | 1.71 | 0.54 | 31.8% | 18.5% | 13.2% | .187 | 1.53 | .288 | 66.4% | 117 | 97 | 3.96 | ||||
| 2025 | Steamer | ROS | 6.11 | 7.09 | 0.86 | 1.37 | 14.2% | 16.5% | -2.3% | .273 | 1.86 | .297 | 69.4% | 6.21 | ||||||
| 2025 | OOPSY | ROS | 7.98 | 6.57 | 1.22 | 1.35 | 18.8% | 15.4% | 3.3% | .251 | 1.72 | .289 | 69.8% | 5.72 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | HOU | DSL | 9.32 | 8.68 | 1.07 | 0.32 | 22.7% | 21.1% | 1.6% | .210 | 1.71 | .286 | 56.7% | 134 | 111 | 5.20 | ||||
| 2023 | HOU | CPX | 9.19 | 9.19 | 1.00 | 0.57 | 21.3% | 21.3% | 0.0% | .241 | 1.91 | .317 | 67.6% | 121 | 113 | 5.99 | ||||
| 2025 | Steamer | PROJ | 4.56 | 8.37 | 0.54 | 1.60 | 10.1% | 18.6% | -8.5% | .293 | 2.11 | .299 | 67.0% | 7.41 | ||||||
| 2025 | OOPSY | PROJ | 5.63 | 6.70 | 0.84 | 1.59 | 12.7% | 15.1% | -2.4% | .283 | 1.91 | .299 | 66.8% | 6.64 | ||||||
| 2025 | HOU | CPX | 11.57 | 9.00 | 1.29 | 0.00 | 29.0% | 22.6% | 6.5% | .167 | 1.57 | .267 | 63.6% | 63 | 89 | 4.00 | ||||
| 2025 | HOU | A | 13.33 | 7.18 | 1.86 | 0.68 | 32.5% | 17.5% | 15.0% | .192 | 1.52 | .293 | 67.2% | 132 | 99 | 3.94 | ||||
| 2025 | HOU | MiLB | 12.96 | 7.56 | 1.71 | 0.54 | 31.8% | 18.5% | 13.2% | .187 | 1.53 | .288 | 66.4% | 117 | 97 | 3.96 | ||||
| 2025 | Steamer | ROS | 6.11 | 7.09 | 0.86 | 1.37 | 14.2% | 16.5% | -2.3% | .273 | 1.86 | .297 | 69.4% | 6.21 | ||||||
| 2025 | OOPSY | ROS | 7.98 | 6.57 | 1.22 | 1.35 | 18.8% | 15.4% | 3.3% | .251 | 1.72 | .289 | 69.8% | 5.72 |
