Yermain Ruiz
Boston Red Sox (CPX)P
Age: 19
Bats/Throws: R/R
5'11" / 160
DOB: 11/27/2005
(19 years, 8 months, 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 18 | 3 | 1 | 0 | 11 | 11 | 45.2 | 7.29 | 2.96 | 0.59 | .203 | 78.4% | 44.1% | 6.4% | 1.77 | 4.39 | 4.12 | ||||||
| 2025 | Steamer | PROJ | 19 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.17 | 6.42 | 1.67 | .297 | 66.7% | 40.6% | 6.92 | 6.94 | 6.65 | 0.0 | ||||||
| 2025 | BOS | CPX | 19 | 3 | 1 | 1 | 12 | 5 | 42.0 | 9.64 | 3.21 | 0.00 | .328 | 65.5% | 44.3% | 0.0% | 2.79 | 2.64 | 3.37 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.42 | 6.54 | 1.57 | .303 | 66.5% | 6.90 | 6.71 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 19 | 0 | 0 | 0 | 1 | 1 | 3.5 | 5.15 | 4.12 | 1.43 | .315 | 59.4% | 6.31 | 5.61 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 18 | 3 | 1 | 0 | 11 | 11 | 45.2 | 7.29 | 2.96 | 0.59 | .203 | 78.4% | 44.1% | 6.4% | 1.77 | 4.39 | 4.12 | ||||||
| 2025 | Steamer | PROJ | 19 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.17 | 6.42 | 1.67 | .297 | 66.7% | 40.6% | 6.92 | 6.94 | 6.65 | 0.0 | ||||||
| 2025 | BOS | CPX | 19 | 3 | 1 | 1 | 12 | 5 | 42.0 | 9.64 | 3.21 | 0.00 | .328 | 65.5% | 44.3% | 0.0% | 2.79 | 2.64 | 3.37 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.42 | 6.54 | 1.57 | .303 | 66.5% | 6.90 | 6.71 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 19 | 0 | 0 | 0 | 1 | 1 | 3.5 | 5.15 | 4.12 | 1.43 | .315 | 59.4% | 6.31 | 5.61 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 3 | 1 | 1.77 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 45.2 | 176 | 27 | 13 | 9 | 3 | 15 | 0 | 3 | 2 | 0 | 37 | |
| 2025 | Steamer | PROJ | 0 | 0 | 6.92 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | |||
| 2025 | BOS | CPX | 3 | 1 | 2.79 | 12 | 5 | 0 | 0 | 1 | 0 | 0 | 42.0 | 178 | 38 | 19 | 13 | 0 | 15 | 0 | 2 | 4 | 2 | 45 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.90 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 6.31 | 1 | 1 | 0 | 0 | 0 | 3.5 | 15 | 4 | 3 | 2 | 1 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 3 | 1 | 1.77 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 45.2 | 176 | 27 | 13 | 9 | 3 | 15 | 0 | 3 | 2 | 0 | 37 | |
| 2025 | Steamer | PROJ | 0 | 0 | 6.92 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | |||
| 2025 | BOS | CPX | 3 | 1 | 2.79 | 12 | 5 | 0 | 0 | 1 | 0 | 0 | 42.0 | 178 | 38 | 19 | 13 | 0 | 15 | 0 | 2 | 4 | 2 | 45 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.90 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 6.31 | 1 | 1 | 0 | 0 | 0 | 3.5 | 15 | 4 | 3 | 2 | 1 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 7.29 | 2.96 | 2.47 | 0.59 | 21.0% | 8.5% | 12.5% | .171 | 0.92 | .203 | 78.4% | 36 | 91 | 4.39 | ||||
| 2025 | Steamer | PROJ | 4.17 | 6.42 | 0.65 | 1.67 | 9.6% | 14.7% | -5.2% | .296 | 1.92 | .297 | 66.7% | 6.94 | ||||||
| 2025 | BOS | CPX | 9.64 | 3.21 | 3.00 | 0.00 | 25.3% | 8.4% | 16.9% | .236 | 1.26 | .328 | 65.5% | 60 | 60 | 2.64 | ||||
| 2025 | Steamer | ROS | 4.42 | 6.54 | 0.68 | 1.57 | 10.1% | 15.0% | -4.9% | .297 | 1.94 | .303 | 66.5% | 6.71 | ||||||
| 2025 | OOPSY | ROS | 5.15 | 4.12 | 1.25 | 1.43 | 13.5% | 10.8% | 2.7% | .296 | 1.56 | .315 | 59.4% | 5.61 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | DSL | 7.29 | 2.96 | 2.47 | 0.59 | 21.0% | 8.5% | 12.5% | .171 | 0.92 | .203 | 78.4% | 36 | 91 | 4.39 | ||||
| 2025 | Steamer | PROJ | 4.17 | 6.42 | 0.65 | 1.67 | 9.6% | 14.7% | -5.2% | .296 | 1.92 | .297 | 66.7% | 6.94 | ||||||
| 2025 | BOS | CPX | 9.64 | 3.21 | 3.00 | 0.00 | 25.3% | 8.4% | 16.9% | .236 | 1.26 | .328 | 65.5% | 60 | 60 | 2.64 | ||||
| 2025 | Steamer | ROS | 4.42 | 6.54 | 0.68 | 1.57 | 10.1% | 15.0% | -4.9% | .297 | 1.94 | .303 | 66.5% | 6.71 | ||||||
| 2025 | OOPSY | ROS | 5.15 | 4.12 | 1.25 | 1.43 | 13.5% | 10.8% | 2.7% | .296 | 1.56 | .315 | 59.4% | 5.61 |
