Keyner Martinez
San Francisco Giants (A)P
Age: 21
Bats/Throws: R/R
6'1" / 165
DOB: 8/16/2004
(21 years, 19 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 | SFG | CPX | 19 | 1 | 1 | 3 | 19 | 0 | 32.2 | 6.34 | 4.41 | 0.55 | .258 | 71.8% | 47.3% | 6.7% | 3.03 | 5.83 | 5.90 | ||||||
| 2025 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 0 | 1.7 | 3.40 | 4.72 | 1.34 | .301 | 59.9% | 6.51 | 6.07 | 0.0 | ||||||||
| 2025 | SFG | CPX | 20 | 3 | 1 | 2 | 15 | 8 | 47.1 | 12.74 | 1.90 | 0.19 | .380 | 77.9% | 47.2% | 2.5% | 1.90 | 2.70 | 3.18 | ||||||
| 2025 | SFG | A | 20 | 2 | 1 | 0 | 5 | 2 | 18.2 | 12.54 | 3.86 | 0.48 | .356 | 80.5% | 53.3% | 7.1% | 1.93 | 3.18 | 3.13 | ||||||
| 2025 | SFG | MiLB | 20 | 5 | 2 | 2 | 20 | 10 | 66.0 | 12.68 | 2.45 | 0.27 | .373 | 78.7% | 49.0% | 3.7% | 1.91 | 2.84 | 3.17 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.91 | 4.56 | 1.24 | .296 | 69.6% | 5.17 | 5.26 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 2.9 | 7.33 | 3.18 | 1.12 | .290 | 68.4% | 4.37 | 4.35 | 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 | SFG | CPX | 19 | 1 | 1 | 3 | 19 | 0 | 32.2 | 6.34 | 4.41 | 0.55 | .258 | 71.8% | 47.3% | 6.7% | 3.03 | 5.83 | 5.90 | ||||||
| 2025 | OOPSY | PROJ | 20 | 0 | 0 | 0 | 1 | 0 | 1.7 | 3.40 | 4.72 | 1.34 | .301 | 59.9% | 6.51 | 6.07 | 0.0 | ||||||||
| 2025 | SFG | CPX | 20 | 3 | 1 | 2 | 15 | 8 | 47.1 | 12.74 | 1.90 | 0.19 | .380 | 77.9% | 47.2% | 2.5% | 1.90 | 2.70 | 3.18 | ||||||
| 2025 | SFG | A | 20 | 2 | 1 | 0 | 5 | 2 | 18.2 | 12.54 | 3.86 | 0.48 | .356 | 80.5% | 53.3% | 7.1% | 1.93 | 3.18 | 3.13 | ||||||
| 2025 | SFG | MiLB | 20 | 5 | 2 | 2 | 20 | 10 | 66.0 | 12.68 | 2.45 | 0.27 | .373 | 78.7% | 49.0% | 3.7% | 1.91 | 2.84 | 3.17 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.91 | 4.56 | 1.24 | .296 | 69.6% | 5.17 | 5.26 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 2.9 | 7.33 | 3.18 | 1.12 | .290 | 68.4% | 4.37 | 4.35 | 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 | SFG | CPX | 1 | 1 | 3.03 | 19 | 0 | 0 | 0 | 3 | 0 | 2 | 32.2 | 141 | 27 | 15 | 11 | 2 | 16 | 0 | 3 | 4 | 1 | 23 | |
| 2025 | OOPSY | PROJ | 0 | 0 | 6.51 | 1 | 0 | 0 | 0 | 0 | 1.7 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SFG | CPX | 3 | 1 | 1.90 | 15 | 8 | 0 | 0 | 2 | 0 | 0 | 47.1 | 188 | 42 | 13 | 10 | 1 | 10 | 0 | 2 | 2 | 0 | 67 | |
| 2025 | SFG | A | 2 | 1 | 1.93 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 18.2 | 80 | 17 | 6 | 4 | 1 | 8 | 0 | 0 | 1 | 0 | 26 | |
| 2025 | SFG | MiLB | 5 | 2 | 1.91 | 20 | 10 | 0 | 0 | 2 | 0 | 0 | 66.0 | 268 | 59 | 19 | 14 | 2 | 18 | 0 | 2 | 3 | 0 | 93 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 4.37 | 1 | 1 | 0 | 0 | 0 | 2.9 | 12 | 3 | 2 | 1 | 0 | 1 | 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 | SFG | CPX | 1 | 1 | 3.03 | 19 | 0 | 0 | 0 | 3 | 0 | 2 | 32.2 | 141 | 27 | 15 | 11 | 2 | 16 | 0 | 3 | 4 | 1 | 23 | |
| 2025 | OOPSY | PROJ | 0 | 0 | 6.51 | 1 | 0 | 0 | 0 | 0 | 1.7 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2025 | SFG | CPX | 3 | 1 | 1.90 | 15 | 8 | 0 | 0 | 2 | 0 | 0 | 47.1 | 188 | 42 | 13 | 10 | 1 | 10 | 0 | 2 | 2 | 0 | 67 | |
| 2025 | SFG | A | 2 | 1 | 1.93 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 18.2 | 80 | 17 | 6 | 4 | 1 | 8 | 0 | 0 | 1 | 0 | 26 | |
| 2025 | SFG | MiLB | 5 | 2 | 1.91 | 20 | 10 | 0 | 0 | 2 | 0 | 0 | 66.0 | 268 | 59 | 19 | 14 | 2 | 18 | 0 | 2 | 3 | 0 | 93 | |
| 2025 | Steamer | ROS | 0 | 0 | 5.17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 4.37 | 1 | 1 | 0 | 0 | 0 | 2.9 | 12 | 3 | 2 | 1 | 0 | 1 | 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 | SFG | CPX | 6.34 | 4.41 | 1.44 | 0.55 | 16.3% | 11.3% | 5.0% | .221 | 1.32 | .258 | 71.8% | 55 | 106 | 5.83 | ||||
| 2025 | OOPSY | PROJ | 3.40 | 4.72 | 0.72 | 1.34 | 8.6% | 12.0% | -3.3% | .299 | 1.66 | .301 | 59.9% | 6.07 | ||||||
| 2025 | SFG | CPX | 12.74 | 1.90 | 6.70 | 0.19 | 35.6% | 5.3% | 30.3% | .239 | 1.10 | .380 | 77.9% | 37 | 52 | 2.70 | ||||
| 2025 | SFG | A | 12.54 | 3.86 | 3.25 | 0.48 | 32.5% | 10.0% | 22.5% | .236 | 1.34 | .356 | 80.5% | 42 | 69 | 3.18 | ||||
| 2025 | SFG | MiLB | 12.68 | 2.45 | 5.17 | 0.27 | 34.7% | 6.7% | 28.0% | .238 | 1.17 | .373 | 78.7% | 38 | 57 | 2.84 | ||||
| 2025 | Steamer | ROS | 5.91 | 4.56 | 1.30 | 1.24 | 14.4% | 11.2% | 3.3% | .271 | 1.59 | .296 | 69.6% | 5.26 | ||||||
| 2025 | OOPSY | ROS | 7.33 | 3.18 | 2.31 | 1.12 | 19.5% | 8.5% | 11.1% | .251 | 1.30 | .290 | 68.4% | 4.35 |
| 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 | SFG | CPX | 6.34 | 4.41 | 1.44 | 0.55 | 16.3% | 11.3% | 5.0% | .221 | 1.32 | .258 | 71.8% | 55 | 106 | 5.83 | ||||
| 2025 | OOPSY | PROJ | 3.40 | 4.72 | 0.72 | 1.34 | 8.6% | 12.0% | -3.3% | .299 | 1.66 | .301 | 59.9% | 6.07 | ||||||
| 2025 | SFG | CPX | 12.74 | 1.90 | 6.70 | 0.19 | 35.6% | 5.3% | 30.3% | .239 | 1.10 | .380 | 77.9% | 37 | 52 | 2.70 | ||||
| 2025 | SFG | A | 12.54 | 3.86 | 3.25 | 0.48 | 32.5% | 10.0% | 22.5% | .236 | 1.34 | .356 | 80.5% | 42 | 69 | 3.18 | ||||
| 2025 | SFG | MiLB | 12.68 | 2.45 | 5.17 | 0.27 | 34.7% | 6.7% | 28.0% | .238 | 1.17 | .373 | 78.7% | 38 | 57 | 2.84 | ||||
| 2025 | Steamer | ROS | 5.91 | 4.56 | 1.30 | 1.24 | 14.4% | 11.2% | 3.3% | .271 | 1.59 | .296 | 69.6% | 5.26 | ||||||
| 2025 | OOPSY | ROS | 7.33 | 3.18 | 2.31 | 1.12 | 19.5% | 8.5% | 11.1% | .251 | 1.30 | .290 | 68.4% | 4.35 |
