Erik Rivera
Boston Red Sox (A+)P
Age: 24
Bats/Throws: L/L
6'2" / 200
DOB: 4/2/2001
(24 years, 2 months, 15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | A | 20 | 0 | 0 | 0 | 1 | 1 | 3.1 | 16.20 | 2.70 | 0.00 | .200 | 100.0% | 20.0% | 0.0% | 0.00 | 2.43 | 3.72 | ||||||
| 2023 | LAA | CPX | 22 | 0 | 1 | 0 | 5 | 4 | 6.2 | 14.85 | 17.55 | 0.00 | .250 | 70.6% | 50.0% | 0.0% | 6.75 | 7.93 | 8.70 | ||||||
| 2023 | LAA | A+ | 22 | 0 | 0 | 0 | 2 | 2 | 4.1 | 10.38 | 4.15 | 0.00 | .400 | 100.0% | 40.0% | 0.0% | 0.00 | 2.78 | 3.79 | ||||||
| 2023 | LAA | MiLB | 22 | 0 | 1 | 0 | 7 | 6 | 11.0 | 13.09 | 12.27 | 0.00 | .318 | 78.3% | 45.5% | 0.0% | 4.09 | 5.90 | 6.77 | ||||||
| 2024 | LAA | A+ | 23 | 0 | 1 | 0 | 10 | 8 | 35.1 | 9.93 | 5.09 | 1.27 | .258 | 76.7% | 51.1% | 14.7% | 3.31 | 4.94 | 4.25 | ||||||
| 2025 | Steamer | PROJ | 24 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.91 | 5.22 | 1.34 | .303 | 69.0% | 43.1% | 5.64 | 5.67 | 5.54 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 24 | 0 | 0 | 0 | 1 | 1 | 3.1 | 7.07 | 5.70 | 1.42 | .285 | 68.4% | 5.51 | 5.71 | 0.0 | ||||||||
| 2025 | BOS | A+ | 24 | 1 | 0 | 0 | 5 | 0 | 12.2 | 12.79 | 6.39 | 0.71 | .400 | 46.3% | 48.4% | 11.1% | 8.53 | 4.11 | 3.97 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.01 | 5.99 | 1.10 | .301 | 71.3% | 5.09 | 5.22 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 24 | 0 | 0 | 0 | 1 | 1 | 2.8 | 7.32 | 5.64 | 1.38 | .300 | 68.6% | 5.60 | 5.59 | 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 | LAA | A | 20 | 0 | 0 | 0 | 1 | 1 | 3.1 | 16.20 | 2.70 | 0.00 | .200 | 100.0% | 20.0% | 0.0% | 0.00 | 2.43 | 3.72 | ||||||
| 2023 | LAA | CPX | 22 | 0 | 1 | 0 | 5 | 4 | 6.2 | 14.85 | 17.55 | 0.00 | .250 | 70.6% | 50.0% | 0.0% | 6.75 | 7.93 | 8.70 | ||||||
| 2023 | LAA | A+ | 22 | 0 | 0 | 0 | 2 | 2 | 4.1 | 10.38 | 4.15 | 0.00 | .400 | 100.0% | 40.0% | 0.0% | 0.00 | 2.78 | 3.79 | ||||||
| 2023 | LAA | MiLB | 22 | 0 | 1 | 0 | 7 | 6 | 11.0 | 13.09 | 12.27 | 0.00 | .318 | 78.3% | 45.5% | 0.0% | 4.09 | 5.90 | 6.77 | ||||||
| 2024 | LAA | A+ | 23 | 0 | 1 | 0 | 10 | 8 | 35.1 | 9.93 | 5.09 | 1.27 | .258 | 76.7% | 51.1% | 14.7% | 3.31 | 4.94 | 4.25 | ||||||
| 2025 | Steamer | PROJ | 24 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.91 | 5.22 | 1.34 | .303 | 69.0% | 43.1% | 5.64 | 5.67 | 5.54 | 0.0 | ||||||
| 2025 | OOPSY | PROJ | 24 | 0 | 0 | 0 | 1 | 1 | 3.1 | 7.07 | 5.70 | 1.42 | .285 | 68.4% | 5.51 | 5.71 | 0.0 | ||||||||
| 2025 | BOS | A+ | 24 | 1 | 0 | 0 | 5 | 0 | 12.2 | 12.79 | 6.39 | 0.71 | .400 | 46.3% | 48.4% | 11.1% | 8.53 | 4.11 | 3.97 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.01 | 5.99 | 1.10 | .301 | 71.3% | 5.09 | 5.22 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 24 | 0 | 0 | 0 | 1 | 1 | 2.8 | 7.32 | 5.64 | 1.38 | .300 | 68.6% | 5.60 | 5.59 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | A | 0 | 0 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.1 | 13 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 6 | |
| 2023 | LAA | CPX | 0 | 1 | 6.75 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 6.2 | 37 | 3 | 5 | 5 | 0 | 13 | 0 | 1 | 4 | 0 | 11 | |
| 2023 | LAA | A+ | 0 | 0 | 0.00 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 4.1 | 17 | 4 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | |
| 2023 | LAA | MiLB | 0 | 1 | 4.09 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 11.0 | 54 | 7 | 5 | 5 | 0 | 15 | 0 | 1 | 4 | 0 | 16 | |
| 2024 | LAA | A+ | 0 | 1 | 3.31 | 10 | 8 | 0 | 0 | 0 | 1 | 0 | 35.1 | 158 | 29 | 17 | 13 | 5 | 20 | 0 | 1 | 3 | 0 | 39 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.51 | 1 | 1 | 0 | 0 | 0 | 3.1 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 2 | |||||
| 2025 | BOS | A+ | 1 | 0 | 8.53 | 5 | 0 | 0 | 0 | 0 | 2 | 0 | 12.2 | 59 | 13 | 13 | 12 | 1 | 9 | 0 | 1 | 2 | 0 | 18 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.60 | 1 | 1 | 0 | 0 | 0 | 2.8 | 13 | 3 | 2 | 2 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | A | 0 | 0 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.1 | 13 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 6 | |
| 2023 | LAA | CPX | 0 | 1 | 6.75 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 6.2 | 37 | 3 | 5 | 5 | 0 | 13 | 0 | 1 | 4 | 0 | 11 | |
| 2023 | LAA | A+ | 0 | 0 | 0.00 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 4.1 | 17 | 4 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | |
| 2023 | LAA | MiLB | 0 | 1 | 4.09 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 11.0 | 54 | 7 | 5 | 5 | 0 | 15 | 0 | 1 | 4 | 0 | 16 | |
| 2024 | LAA | A+ | 0 | 1 | 3.31 | 10 | 8 | 0 | 0 | 0 | 1 | 0 | 35.1 | 158 | 29 | 17 | 13 | 5 | 20 | 0 | 1 | 3 | 0 | 39 | |
| 2025 | Steamer | PROJ | 0 | 0 | 5.64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2025 | OOPSY | PROJ | 0 | 0 | 5.51 | 1 | 1 | 0 | 0 | 0 | 3.1 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 2 | |||||
| 2025 | BOS | A+ | 1 | 0 | 8.53 | 5 | 0 | 0 | 0 | 0 | 2 | 0 | 12.2 | 59 | 13 | 13 | 12 | 1 | 9 | 0 | 1 | 2 | 0 | 18 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.60 | 1 | 1 | 0 | 0 | 0 | 2.8 | 13 | 3 | 2 | 2 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | A | 16.20 | 2.70 | 6.00 | 0.00 | 46.2% | 7.7% | 38.5% | .091 | 0.60 | .200 | 100.0% | 0 | 52 | 2.43 | ||||
| 2023 | LAA | CPX | 14.85 | 17.55 | 0.85 | 0.00 | 29.7% | 35.1% | -5.4% | .130 | 2.40 | .250 | 70.6% | 115 | 141 | 7.93 | ||||
| 2023 | LAA | A+ | 10.38 | 4.15 | 2.50 | 0.00 | 29.4% | 11.8% | 17.6% | .267 | 1.38 | .400 | 100.0% | 0 | 67 | 2.78 | ||||
| 2023 | LAA | MiLB | 13.09 | 12.27 | 1.07 | 0.00 | 29.6% | 27.8% | 1.9% | .184 | 2.00 | .318 | 78.3% | 70 | 112 | 5.90 | ||||
| 2024 | LAA | A+ | 9.93 | 5.09 | 1.95 | 1.27 | 24.7% | 12.7% | 12.0% | .212 | 1.39 | .258 | 76.7% | 87 | 129 | 4.94 | ||||
| 2025 | Steamer | PROJ | 5.91 | 5.22 | 1.13 | 1.34 | 14.2% | 12.6% | 1.7% | .279 | 1.69 | .303 | 69.0% | 5.67 | ||||||
| 2025 | OOPSY | PROJ | 7.07 | 5.70 | 1.24 | 1.42 | 17.0% | 13.7% | 3.3% | .256 | 1.64 | .285 | 68.4% | 5.71 | ||||||
| 2025 | BOS | A+ | 12.79 | 6.39 | 2.00 | 0.71 | 30.5% | 15.3% | 15.3% | .265 | 1.74 | .400 | 46.3% | 202 | 99 | 4.11 | ||||
| 2025 | Steamer | ROS | 7.01 | 5.99 | 1.17 | 1.10 | 16.9% | 14.4% | 2.4% | .263 | 1.69 | .301 | 71.3% | 5.22 | ||||||
| 2025 | OOPSY | ROS | 7.32 | 5.64 | 1.30 | 1.38 | 17.3% | 13.3% | 4.0% | .266 | 1.70 | .300 | 68.6% | 5.59 |
| 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 | LAA | A | 16.20 | 2.70 | 6.00 | 0.00 | 46.2% | 7.7% | 38.5% | .091 | 0.60 | .200 | 100.0% | 0 | 52 | 2.43 | ||||
| 2023 | LAA | CPX | 14.85 | 17.55 | 0.85 | 0.00 | 29.7% | 35.1% | -5.4% | .130 | 2.40 | .250 | 70.6% | 115 | 141 | 7.93 | ||||
| 2023 | LAA | A+ | 10.38 | 4.15 | 2.50 | 0.00 | 29.4% | 11.8% | 17.6% | .267 | 1.38 | .400 | 100.0% | 0 | 67 | 2.78 | ||||
| 2023 | LAA | MiLB | 13.09 | 12.27 | 1.07 | 0.00 | 29.6% | 27.8% | 1.9% | .184 | 2.00 | .318 | 78.3% | 70 | 112 | 5.90 | ||||
| 2024 | LAA | A+ | 9.93 | 5.09 | 1.95 | 1.27 | 24.7% | 12.7% | 12.0% | .212 | 1.39 | .258 | 76.7% | 87 | 129 | 4.94 | ||||
| 2025 | Steamer | PROJ | 5.91 | 5.22 | 1.13 | 1.34 | 14.2% | 12.6% | 1.7% | .279 | 1.69 | .303 | 69.0% | 5.67 | ||||||
| 2025 | OOPSY | PROJ | 7.07 | 5.70 | 1.24 | 1.42 | 17.0% | 13.7% | 3.3% | .256 | 1.64 | .285 | 68.4% | 5.71 | ||||||
| 2025 | BOS | A+ | 12.79 | 6.39 | 2.00 | 0.71 | 30.5% | 15.3% | 15.3% | .265 | 1.74 | .400 | 46.3% | 202 | 99 | 4.11 | ||||
| 2025 | Steamer | ROS | 7.01 | 5.99 | 1.17 | 1.10 | 16.9% | 14.4% | 2.4% | .263 | 1.69 | .301 | 71.3% | 5.22 | ||||||
| 2025 | OOPSY | ROS | 7.32 | 5.64 | 1.30 | 1.38 | 17.3% | 13.3% | 4.0% | .266 | 1.70 | .300 | 68.6% | 5.59 |
