Keyner Martinez
San Francisco Giants (CPX)P
Age: 20
Bats/Throws: R/R
6'1" / 165
DOB: 8/16/2004
(20 years, 11 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 | 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 | 16 | 8 | 48.1 | 12.85 | 1.86 | 0.19 | .376 | 77.9% | 47.2% | 2.5% | 1.86 | 2.64 | 3.09 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.02 | 5.96 | 1.34 | .297 | 68.3% | 6.01 | 6.03 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 2.6 | 6.29 | 3.96 | 1.21 | .301 | 62.7% | 5.30 | 4.98 | 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 | 16 | 8 | 48.1 | 12.85 | 1.86 | 0.19 | .376 | 77.9% | 47.2% | 2.5% | 1.86 | 2.64 | 3.09 | ||||||
| 2025 | Steamer | ROS | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.02 | 5.96 | 1.34 | .297 | 68.3% | 6.01 | 6.03 | 0.0 | |||||||||
| 2025 | OOPSY | ROS | 20 | 0 | 0 | 0 | 1 | 1 | 2.6 | 6.29 | 3.96 | 1.21 | .301 | 62.7% | 5.30 | 4.98 | 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 | 1.86 | 16 | 8 | 0 | 0 | 2 | 0 | 0 | 48.1 | 191 | 42 | 13 | 10 | 1 | 10 | 0 | 2 | 2 | 0 | 69 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.30 | 1 | 1 | 0 | 0 | 0 | 2.6 | 11 | 2 | 2 | 2 | 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 | 1.86 | 16 | 8 | 0 | 0 | 2 | 0 | 0 | 48.1 | 191 | 42 | 13 | 10 | 1 | 10 | 0 | 2 | 2 | 0 | 69 | |
| 2025 | Steamer | ROS | 0 | 0 | 6.01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2025 | OOPSY | ROS | 0 | 0 | 5.30 | 1 | 1 | 0 | 0 | 0 | 2.6 | 11 | 2 | 2 | 2 | 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 | 12.85 | 1.86 | 6.90 | 0.19 | 36.1% | 5.2% | 30.9% | .235 | 1.08 | .376 | 77.9% | 36 | 51 | 2.64 | ||||
| 2025 | Steamer | ROS | 5.02 | 5.96 | 0.84 | 1.34 | 11.8% | 13.9% | -2.2% | .282 | 1.80 | .297 | 68.3% | 6.03 | ||||||
| 2025 | OOPSY | ROS | 6.29 | 3.96 | 1.59 | 1.21 | 17.1% | 10.7% | 6.3% | .269 | 1.41 | .301 | 62.7% | 4.98 |
| 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 | 12.85 | 1.86 | 6.90 | 0.19 | 36.1% | 5.2% | 30.9% | .235 | 1.08 | .376 | 77.9% | 36 | 51 | 2.64 | ||||
| 2025 | Steamer | ROS | 5.02 | 5.96 | 0.84 | 1.34 | 11.8% | 13.9% | -2.2% | .282 | 1.80 | .297 | 68.3% | 6.03 | ||||||
| 2025 | OOPSY | ROS | 6.29 | 3.96 | 1.59 | 1.21 | 17.1% | 10.7% | 6.3% | .269 | 1.41 | .301 | 62.7% | 4.98 |
