Kyson Witherspoon
Boston Red Sox (A+)P
Age: 21
Bats/Throws: R/R
6'2" / 206
DOB: 8/12/2004
(21 years, 9 months, 8 days)
P
Player Dashboard:
Quick Links
More
Stats
Stat Groups:
Select
You can shift + click on full MLB seasons in Season Stats and games in Game Logs to select spans for aggregate stats. Read more here
In-Season ProjectionsMinor LeaguesCollege
| 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 | OU | NCAA | 19 | 8 | 3 | 1 | 17 | 11 | 80.0 | 10.13 | 4.50 | 1.01 | .263 | 71.6% | 3.71 | 4.83 | |||||||||
| 2025 | OU | NCAA | 20 | 10 | 4 | 0 | 16 | 16 | 95.0 | 11.75 | 2.18 | 0.85 | .286 | 71.7% | 2.65 | 3.35 | |||||||||
| 2026 | BOS | A+ | 21 | 0 | 3 | 0 | 7 | 7 | 26.1 | 8.89 | 5.47 | 1.37 | .342 | 53.1% | 53.2% | 20.0% | 7.18 | 5.73 | 5.23 | ||||||
| 2026 | Steamer | ROS | 21 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.49 | 5.10 | 1.30 | .306 | 67.9% | 5.77 | 5.63 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 21 | 0 | 0 | 0 | 1 | 1 | 3.7 | 6.54 | 4.48 | 1.19 | .304 | 68.9% | 5.18 | 5.06 | 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 | OU | NCAA | 19 | 8 | 3 | 1 | 17 | 11 | 80.0 | 10.13 | 4.50 | 1.01 | .263 | 71.6% | 3.71 | 4.83 | |||||||||
| 2025 | OU | NCAA | 20 | 10 | 4 | 0 | 16 | 16 | 95.0 | 11.75 | 2.18 | 0.85 | .286 | 71.7% | 2.65 | 3.35 | |||||||||
| 2026 | BOS | A+ | 21 | 0 | 3 | 0 | 7 | 7 | 26.1 | 8.89 | 5.47 | 1.37 | .342 | 53.1% | 53.2% | 20.0% | 7.18 | 5.73 | 5.23 | ||||||
| 2026 | Steamer | ROS | 21 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.49 | 5.10 | 1.30 | .306 | 67.9% | 5.77 | 5.63 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 21 | 0 | 0 | 0 | 1 | 1 | 3.7 | 6.54 | 4.48 | 1.19 | .304 | 68.9% | 5.18 | 5.06 | 0.0 |
In-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | OU | NCAA | 8 | 3 | 3.71 | 17 | 11 | 0 | 0 | 1 | 80.0 | 374 | 69 | 42 | 33 | 9 | 40 | 7 | 2 | 0 | 90 | ||||
| 2025 | OU | NCAA | 10 | 4 | 2.65 | 16 | 16 | 1 | 1 | 0 | 95.0 | 390 | 73 | 39 | 28 | 9 | 23 | 10 | 5 | 0 | 124 | ||||
| 2026 | BOS | A+ | 0 | 3 | 7.18 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 26.1 | 121 | 29 | 25 | 21 | 4 | 16 | 0 | 2 | 3 | 1 | 26 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.18 | 1 | 1 | 0 | 0 | 0 | 3.7 | 17 | 4 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | OU | NCAA | 8 | 3 | 3.71 | 17 | 11 | 0 | 0 | 1 | 80.0 | 374 | 69 | 42 | 33 | 9 | 40 | 7 | 2 | 0 | 90 | ||||
| 2025 | OU | NCAA | 10 | 4 | 2.65 | 16 | 16 | 1 | 1 | 0 | 95.0 | 390 | 73 | 39 | 28 | 9 | 23 | 10 | 5 | 0 | 124 | ||||
| 2026 | BOS | A+ | 0 | 3 | 7.18 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 26.1 | 121 | 29 | 25 | 21 | 4 | 16 | 0 | 2 | 3 | 1 | 26 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.18 | 1 | 1 | 0 | 0 | 0 | 3.7 | 17 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 3 |
In-Season ProjectionsMinor LeaguesAveragesCollege
| 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 | OU | NCAA | 10.13 | 4.50 | 2.25 | 1.01 | 24.1% | 10.7% | 13.4% | .211 | 1.36 | .263 | 71.6% | 4.83 | ||||||
| 2025 | OU | NCAA | 11.75 | 2.18 | 5.39 | 0.85 | 31.8% | 5.9% | 25.9% | .204 | 1.01 | .286 | 71.7% | 3.35 | ||||||
| 2026 | BOS | A+ | 8.89 | 5.47 | 1.63 | 1.37 | 21.5% | 13.2% | 8.3% | .282 | 1.71 | .342 | 53.1% | 137 | 112 | 5.73 | ||||
| 2026 | Steamer | ROS | 5.49 | 5.10 | 1.08 | 1.30 | 13.2% | 12.2% | 0.9% | .285 | 1.71 | .306 | 67.9% | 5.63 | ||||||
| 2026 | OOPSY | ROS | 6.54 | 4.48 | 1.46 | 1.19 | 15.7% | 10.7% | 4.9% | .272 | 1.61 | .304 | 68.9% | 5.06 |
| 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 | OU | NCAA | 10.13 | 4.50 | 2.25 | 1.01 | 24.1% | 10.7% | 13.4% | .211 | 1.36 | .263 | 71.6% | 4.83 | ||||||
| 2025 | OU | NCAA | 11.75 | 2.18 | 5.39 | 0.85 | 31.8% | 5.9% | 25.9% | .204 | 1.01 | .286 | 71.7% | 3.35 | ||||||
| 2026 | BOS | A+ | 8.89 | 5.47 | 1.63 | 1.37 | 21.5% | 13.2% | 8.3% | .282 | 1.71 | .342 | 53.1% | 137 | 112 | 5.73 | ||||
| 2026 | Steamer | ROS | 5.49 | 5.10 | 1.08 | 1.30 | 13.2% | 12.2% | 0.9% | .285 | 1.71 | .306 | 67.9% | 5.63 | ||||||
| 2026 | OOPSY | ROS | 6.54 | 4.48 | 1.46 | 1.19 | 15.7% | 10.7% | 4.9% | .272 | 1.61 | .304 | 68.9% | 5.06 |
