Juan Valera
Boston Red Sox (A+)P
Age: 19
Bats/Throws: R/R
6'3" / 205
DOB: 5/18/2006
(19 years, 10 months, 28 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 | BOS | DSL | 17 | 3 | 1 | 0 | 15 | 1 | 27.1 | 10.21 | 6.59 | 0.00 | .355 | 59.3% | 47.9% | 0.0% | 5.93 | 4.67 | 5.34 | ||||||
| 2024 | BOS | CPX | 18 | 1 | 2 | 0 | 11 | 9 | 40.1 | 8.93 | 3.12 | 0.00 | .179 | 75.0% | 56.0% | 0.0% | 1.79 | 3.25 | 3.92 | ||||||
| 2024 | BOS | A | 18 | 0 | 1 | 0 | 7 | 7 | 23.0 | 10.96 | 5.48 | 0.39 | .170 | 78.7% | 57.8% | 7.7% | 2.35 | 3.54 | 3.48 | ||||||
| 2024 | BOS | MiLB | 18 | 1 | 3 | 0 | 18 | 16 | 63.1 | 9.66 | 3.98 | 0.14 | .176 | 76.4% | 56.6% | 2.2% | 1.99 | 3.36 | 3.76 | ||||||
| 2025 | BOS | A+ | 19 | 1 | 2 | 0 | 10 | 10 | 38.0 | 10.89 | 2.37 | 1.42 | .359 | 64.4% | 38.3% | 15.8% | 5.45 | 3.97 | 3.00 | ||||||
| 2026 | Steamer | PROJ | 20 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.03 | 4.49 | 1.38 | .304 | 68.3% | 43.6% | 5.55 | 5.42 | 5.26 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 1 | 3.7 | 7.02 | 3.71 | 1.10 | .300 | 66.5% | 4.72 | 4.54 | 0.0 | ||||||||
| 2026 | BOS | A+ | 20 | 0 | 0 | 0 | 2 | 2 | 8.1 | 17.28 | 3.24 | 1.08 | .273 | 89.3% | 50.0% | 20.0% | 2.16 | 2.46 | 1.67 | ||||||
| 2026 | Steamer | ROS | 20 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.55 | 4.73 | 1.27 | .304 | 68.9% | 5.35 | 5.24 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 3.7 | 7.54 | 3.75 | 1.08 | .300 | 66.8% | 4.58 | 4.41 | 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 | BOS | DSL | 17 | 3 | 1 | 0 | 15 | 1 | 27.1 | 10.21 | 6.59 | 0.00 | .355 | 59.3% | 47.9% | 0.0% | 5.93 | 4.67 | 5.34 | ||||||
| 2024 | BOS | CPX | 18 | 1 | 2 | 0 | 11 | 9 | 40.1 | 8.93 | 3.12 | 0.00 | .179 | 75.0% | 56.0% | 0.0% | 1.79 | 3.25 | 3.92 | ||||||
| 2024 | BOS | A | 18 | 0 | 1 | 0 | 7 | 7 | 23.0 | 10.96 | 5.48 | 0.39 | .170 | 78.7% | 57.8% | 7.7% | 2.35 | 3.54 | 3.48 | ||||||
| 2024 | BOS | MiLB | 18 | 1 | 3 | 0 | 18 | 16 | 63.1 | 9.66 | 3.98 | 0.14 | .176 | 76.4% | 56.6% | 2.2% | 1.99 | 3.36 | 3.76 | ||||||
| 2025 | BOS | A+ | 19 | 1 | 2 | 0 | 10 | 10 | 38.0 | 10.89 | 2.37 | 1.42 | .359 | 64.4% | 38.3% | 15.8% | 5.45 | 3.97 | 3.00 | ||||||
| 2026 | Steamer | PROJ | 20 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.03 | 4.49 | 1.38 | .304 | 68.3% | 43.6% | 5.55 | 5.42 | 5.26 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 1 | 3.7 | 7.02 | 3.71 | 1.10 | .300 | 66.5% | 4.72 | 4.54 | 0.0 | ||||||||
| 2026 | BOS | A+ | 20 | 0 | 0 | 0 | 2 | 2 | 8.1 | 17.28 | 3.24 | 1.08 | .273 | 89.3% | 50.0% | 20.0% | 2.16 | 2.46 | 1.67 | ||||||
| 2026 | Steamer | ROS | 20 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.55 | 4.73 | 1.27 | .304 | 68.9% | 5.35 | 5.24 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 3.7 | 7.54 | 3.75 | 1.08 | .300 | 66.8% | 4.58 | 4.41 | 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 QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | 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 | BOS | DSL | 3 | 1 | 5.93 | 15 | 1 | 0 | 0 | 0 | 2 | 1 | 27.1 | 134 | 27 | 22 | 18 | 0 | 20 | 0 | 7 | 12 | 0 | 31 | |
| 2024 | BOS | CPX | 1 | 2 | 1.79 | 11 | 9 | 0 | 0 | 0 | 1 | 0 | 40.1 | 154 | 17 | 9 | 8 | 0 | 14 | 0 | 5 | 4 | 1 | 40 | |
| 2024 | BOS | A | 0 | 1 | 2.35 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 23.0 | 90 | 9 | 6 | 6 | 1 | 14 | 0 | 0 | 3 | 1 | 28 | |
| 2024 | BOS | MiLB | 1 | 3 | 1.99 | 18 | 16 | 0 | 0 | 0 | 1 | 0 | 63.1 | 244 | 26 | 15 | 14 | 1 | 28 | 0 | 5 | 7 | 2 | 68 | |
| 2025 | BOS | A+ | 1 | 2 | 5.45 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 38.0 | 167 | 43 | 25 | 23 | 6 | 10 | 0 | 2 | 1 | 2 | 46 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.72 | 1 | 1 | 0 | 0 | 0 | 3.7 | 15 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 3 | |||||
| 2026 | BOS | A+ | 0 | 0 | 2.16 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 8.1 | 31 | 4 | 2 | 2 | 1 | 3 | 0 | 0 | 0 | 0 | 16 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.35 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.58 | 1 | 1 | 0 | 0 | 0 | 3.7 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 |
| 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 QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | 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 | BOS | DSL | 3 | 1 | 5.93 | 15 | 1 | 0 | 0 | 0 | 2 | 1 | 27.1 | 134 | 27 | 22 | 18 | 0 | 20 | 0 | 7 | 12 | 0 | 31 | |
| 2024 | BOS | CPX | 1 | 2 | 1.79 | 11 | 9 | 0 | 0 | 0 | 1 | 0 | 40.1 | 154 | 17 | 9 | 8 | 0 | 14 | 0 | 5 | 4 | 1 | 40 | |
| 2024 | BOS | A | 0 | 1 | 2.35 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 23.0 | 90 | 9 | 6 | 6 | 1 | 14 | 0 | 0 | 3 | 1 | 28 | |
| 2024 | BOS | MiLB | 1 | 3 | 1.99 | 18 | 16 | 0 | 0 | 0 | 1 | 0 | 63.1 | 244 | 26 | 15 | 14 | 1 | 28 | 0 | 5 | 7 | 2 | 68 | |
| 2025 | BOS | A+ | 1 | 2 | 5.45 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 38.0 | 167 | 43 | 25 | 23 | 6 | 10 | 0 | 2 | 1 | 2 | 46 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.72 | 1 | 1 | 0 | 0 | 0 | 3.7 | 15 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 3 | |||||
| 2026 | BOS | A+ | 0 | 0 | 2.16 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 8.1 | 31 | 4 | 2 | 2 | 1 | 3 | 0 | 0 | 0 | 0 | 16 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.35 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.58 | 1 | 1 | 0 | 0 | 0 | 3.7 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 |
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 | BOS | DSL | 10.21 | 6.59 | 1.55 | 0.00 | 23.1% | 14.9% | 8.2% | .252 | 1.72 | .355 | 59.3% | 122 | 95 | 4.67 | ||||
| 2024 | BOS | CPX | 8.93 | 3.12 | 2.86 | 0.00 | 26.0% | 9.1% | 16.9% | .126 | 0.77 | .179 | 75.0% | 36 | 70 | 3.25 | ||||
| 2024 | BOS | A | 10.96 | 5.48 | 2.00 | 0.39 | 31.1% | 15.6% | 15.6% | .118 | 1.00 | .170 | 78.7% | 58 | 92 | 3.54 | ||||
| 2024 | BOS | MiLB | 9.66 | 3.98 | 2.43 | 0.14 | 27.9% | 11.5% | 16.4% | .123 | 0.85 | .176 | 76.4% | 44 | 78 | 3.36 | ||||
| 2025 | BOS | A+ | 10.89 | 2.37 | 4.60 | 1.42 | 27.5% | 6.0% | 21.6% | .277 | 1.39 | .359 | 64.4% | 136 | 101 | 3.97 | ||||
| 2026 | Steamer | PROJ | 6.03 | 4.49 | 1.34 | 1.38 | 14.7% | 11.0% | 3.8% | .280 | 1.62 | .304 | 68.3% | 5.42 | ||||||
| 2026 | OOPSY | PROJ | 7.02 | 3.71 | 1.89 | 1.10 | 18.8% | 9.9% | 8.8% | .260 | 1.37 | .300 | 66.5% | 4.54 | ||||||
| 2026 | BOS | A+ | 17.28 | 3.24 | 5.33 | 1.08 | 51.6% | 9.7% | 41.9% | .143 | 0.84 | .273 | 89.3% | 50 | 58 | 2.46 | ||||
| 2026 | Steamer | ROS | 6.55 | 4.73 | 1.38 | 1.27 | 16.0% | 11.6% | 4.5% | .273 | 1.61 | .304 | 68.9% | 5.24 | ||||||
| 2026 | OOPSY | ROS | 7.54 | 3.75 | 2.01 | 1.08 | 20.5% | 10.2% | 10.3% | .254 | 1.34 | .300 | 66.8% | 4.41 |
| 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 | BOS | DSL | 10.21 | 6.59 | 1.55 | 0.00 | 23.1% | 14.9% | 8.2% | .252 | 1.72 | .355 | 59.3% | 122 | 95 | 4.67 | ||||
| 2024 | BOS | CPX | 8.93 | 3.12 | 2.86 | 0.00 | 26.0% | 9.1% | 16.9% | .126 | 0.77 | .179 | 75.0% | 36 | 70 | 3.25 | ||||
| 2024 | BOS | A | 10.96 | 5.48 | 2.00 | 0.39 | 31.1% | 15.6% | 15.6% | .118 | 1.00 | .170 | 78.7% | 58 | 92 | 3.54 | ||||
| 2024 | BOS | MiLB | 9.66 | 3.98 | 2.43 | 0.14 | 27.9% | 11.5% | 16.4% | .123 | 0.85 | .176 | 76.4% | 44 | 78 | 3.36 | ||||
| 2025 | BOS | A+ | 10.89 | 2.37 | 4.60 | 1.42 | 27.5% | 6.0% | 21.6% | .277 | 1.39 | .359 | 64.4% | 136 | 101 | 3.97 | ||||
| 2026 | Steamer | PROJ | 6.03 | 4.49 | 1.34 | 1.38 | 14.7% | 11.0% | 3.8% | .280 | 1.62 | .304 | 68.3% | 5.42 | ||||||
| 2026 | OOPSY | PROJ | 7.02 | 3.71 | 1.89 | 1.10 | 18.8% | 9.9% | 8.8% | .260 | 1.37 | .300 | 66.5% | 4.54 | ||||||
| 2026 | BOS | A+ | 17.28 | 3.24 | 5.33 | 1.08 | 51.6% | 9.7% | 41.9% | .143 | 0.84 | .273 | 89.3% | 50 | 58 | 2.46 | ||||
| 2026 | Steamer | ROS | 6.55 | 4.73 | 1.38 | 1.27 | 16.0% | 11.6% | 4.5% | .273 | 1.61 | .304 | 68.9% | 5.24 | ||||||
| 2026 | OOPSY | ROS | 7.54 | 3.75 | 2.01 | 1.08 | 20.5% | 10.2% | 10.3% | .254 | 1.34 | .300 | 66.8% | 4.41 |
