Mason Marriott
Arizona Diamondbacks (A+)P
Age: 23
Bats/Throws: L/R
6'0" / 198
DOB: 8/14/2002
(23 years, 7 months, 19 days)
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Preseason ProjectionsIn-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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 19 | 2 | 3 | 5 | 18 | 1 | 25.2 | 7.71 | 9.12 | 1.05 | .278 | 71.1% | 5.96 | 6.39 | |||||||||
| 2023 | BAY | NCAA | 20 | 1 | 7 | 0 | 14 | 14 | 58.2 | 7.67 | 6.14 | 1.07 | .355 | 58.8% | 7.52 | 5.60 | |||||||||
| 2024 | BAY | NCAA | 21 | 3 | 7 | 0 | 14 | 14 | 69.2 | 8.40 | 4.78 | 0.78 | .335 | 62.2% | 5.94 | 4.43 | |||||||||
| 2024 | ARI | A | 21 | 0 | 0 | 0 | 3 | 0 | 7.0 | 7.71 | 1.29 | 0.00 | .300 | 71.4% | 50.0% | 0.0% | 2.57 | 2.78 | 3.84 | ||||||
| 2025 | ARI | A+ | 22 | 1 | 0 | 0 | 4 | 4 | 19.2 | 11.44 | 3.66 | 0.00 | .295 | 76.2% | 55.8% | 0.0% | 2.29 | 2.13 | 2.91 | ||||||
| 2026 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.07 | 4.29 | 1.28 | .307 | 68.6% | 43.7% | 5.37 | 5.19 | 5.15 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 7.31 | 3.38 | 0.97 | .299 | 66.7% | 4.33 | 4.18 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.24 | 4.41 | 1.26 | .307 | 68.8% | 5.33 | 5.15 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 7.31 | 3.38 | 0.97 | .299 | 66.7% | 4.33 | 4.18 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 19 | 2 | 3 | 5 | 18 | 1 | 25.2 | 7.71 | 9.12 | 1.05 | .278 | 71.1% | 5.96 | 6.39 | |||||||||
| 2023 | BAY | NCAA | 20 | 1 | 7 | 0 | 14 | 14 | 58.2 | 7.67 | 6.14 | 1.07 | .355 | 58.8% | 7.52 | 5.60 | |||||||||
| 2024 | BAY | NCAA | 21 | 3 | 7 | 0 | 14 | 14 | 69.2 | 8.40 | 4.78 | 0.78 | .335 | 62.2% | 5.94 | 4.43 | |||||||||
| 2024 | ARI | A | 21 | 0 | 0 | 0 | 3 | 0 | 7.0 | 7.71 | 1.29 | 0.00 | .300 | 71.4% | 50.0% | 0.0% | 2.57 | 2.78 | 3.84 | ||||||
| 2025 | ARI | A+ | 22 | 1 | 0 | 0 | 4 | 4 | 19.2 | 11.44 | 3.66 | 0.00 | .295 | 76.2% | 55.8% | 0.0% | 2.29 | 2.13 | 2.91 | ||||||
| 2026 | Steamer | PROJ | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.07 | 4.29 | 1.28 | .307 | 68.6% | 43.7% | 5.37 | 5.19 | 5.15 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 7.31 | 3.38 | 0.97 | .299 | 66.7% | 4.33 | 4.18 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 23 | 0 | 0 | 0 | 0 | 0 | 1.0 | 6.24 | 4.41 | 1.26 | .307 | 68.8% | 5.33 | 5.15 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 4.4 | 7.31 | 3.38 | 0.97 | .299 | 66.7% | 4.33 | 4.18 | 0.0 |
Preseason ProjectionsIn-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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 2 | 3 | 5.96 | 18 | 1 | 0 | 0 | 5 | 25.2 | 126 | 23 | 18 | 17 | 3 | 26 | 3 | 9 | 0 | 22 | ||||
| 2023 | BAY | NCAA | 1 | 7 | 7.52 | 14 | 14 | 0 | 0 | 0 | 58.2 | 290 | 72 | 56 | 49 | 7 | 40 | 10 | 9 | 0 | 50 | ||||
| 2024 | BAY | NCAA | 3 | 7 | 5.94 | 14 | 14 | 0 | 0 | 0 | 69.2 | 323 | 75 | 51 | 46 | 6 | 37 | 9 | 7 | 0 | 65 | ||||
| 2024 | ARI | A | 0 | 0 | 2.57 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 7.0 | 27 | 6 | 2 | 2 | 0 | 1 | 0 | 0 | 2 | 1 | 6 | |
| 2025 | ARI | A+ | 1 | 0 | 2.29 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 19.2 | 77 | 13 | 5 | 5 | 0 | 8 | 0 | 0 | 2 | 1 | 25 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.33 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 4 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 5.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.33 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 4 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 2 | 3 | 5.96 | 18 | 1 | 0 | 0 | 5 | 25.2 | 126 | 23 | 18 | 17 | 3 | 26 | 3 | 9 | 0 | 22 | ||||
| 2023 | BAY | NCAA | 1 | 7 | 7.52 | 14 | 14 | 0 | 0 | 0 | 58.2 | 290 | 72 | 56 | 49 | 7 | 40 | 10 | 9 | 0 | 50 | ||||
| 2024 | BAY | NCAA | 3 | 7 | 5.94 | 14 | 14 | 0 | 0 | 0 | 69.2 | 323 | 75 | 51 | 46 | 6 | 37 | 9 | 7 | 0 | 65 | ||||
| 2024 | ARI | A | 0 | 0 | 2.57 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 7.0 | 27 | 6 | 2 | 2 | 0 | 1 | 0 | 0 | 2 | 1 | 6 | |
| 2025 | ARI | A+ | 1 | 0 | 2.29 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 19.2 | 77 | 13 | 5 | 5 | 0 | 8 | 0 | 0 | 2 | 1 | 25 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.33 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 4 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 5.33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.33 | 1 | 1 | 0 | 0 | 0 | 4.4 | 18 | 4 | 2 | 2 | 0 | 2 | 0 | 0 | 4 |
Preseason ProjectionsIn-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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 7.71 | 9.12 | 0.85 | 1.05 | 17.5% | 20.6% | -3.2% | .237 | 1.91 | .278 | 71.1% | 6.39 | ||||||
| 2023 | BAY | NCAA | 7.67 | 6.14 | 1.25 | 1.07 | 17.2% | 13.8% | 3.4% | .300 | 1.91 | .355 | 58.8% | 5.60 | ||||||
| 2024 | BAY | NCAA | 8.40 | 4.78 | 1.76 | 0.78 | 20.1% | 11.5% | 8.7% | .271 | 1.61 | .335 | 62.2% | 4.43 | ||||||
| 2024 | ARI | A | 7.71 | 1.29 | 6.00 | 0.00 | 22.2% | 3.7% | 18.5% | .231 | 1.00 | .300 | 71.4% | 54 | 58 | 2.78 | ||||
| 2025 | ARI | A+ | 11.44 | 3.66 | 3.13 | 0.00 | 32.5% | 10.4% | 22.1% | .188 | 1.07 | .295 | 76.2% | 51 | 48 | 2.13 | ||||
| 2026 | Steamer | PROJ | 6.07 | 4.29 | 1.41 | 1.28 | 14.9% | 10.5% | 4.4% | .280 | 1.60 | .307 | 68.6% | 5.19 | ||||||
| 2026 | OOPSY | PROJ | 7.31 | 3.38 | 2.16 | 0.97 | 20.4% | 9.4% | 10.9% | .252 | 1.27 | .299 | 66.7% | 4.18 | ||||||
| 2026 | Steamer | ROS | 6.24 | 4.41 | 1.42 | 1.26 | 15.3% | 10.8% | 4.5% | .278 | 1.60 | .307 | 68.8% | 5.15 | ||||||
| 2026 | OOPSY | ROS | 7.31 | 3.38 | 2.16 | 0.97 | 20.4% | 9.4% | 10.9% | .252 | 1.27 | .299 | 66.7% | 4.18 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 7.71 | 9.12 | 0.85 | 1.05 | 17.5% | 20.6% | -3.2% | .237 | 1.91 | .278 | 71.1% | 6.39 | ||||||
| 2023 | BAY | NCAA | 7.67 | 6.14 | 1.25 | 1.07 | 17.2% | 13.8% | 3.4% | .300 | 1.91 | .355 | 58.8% | 5.60 | ||||||
| 2024 | BAY | NCAA | 8.40 | 4.78 | 1.76 | 0.78 | 20.1% | 11.5% | 8.7% | .271 | 1.61 | .335 | 62.2% | 4.43 | ||||||
| 2024 | ARI | A | 7.71 | 1.29 | 6.00 | 0.00 | 22.2% | 3.7% | 18.5% | .231 | 1.00 | .300 | 71.4% | 54 | 58 | 2.78 | ||||
| 2025 | ARI | A+ | 11.44 | 3.66 | 3.13 | 0.00 | 32.5% | 10.4% | 22.1% | .188 | 1.07 | .295 | 76.2% | 51 | 48 | 2.13 | ||||
| 2026 | Steamer | PROJ | 6.07 | 4.29 | 1.41 | 1.28 | 14.9% | 10.5% | 4.4% | .280 | 1.60 | .307 | 68.6% | 5.19 | ||||||
| 2026 | OOPSY | PROJ | 7.31 | 3.38 | 2.16 | 0.97 | 20.4% | 9.4% | 10.9% | .252 | 1.27 | .299 | 66.7% | 4.18 | ||||||
| 2026 | Steamer | ROS | 6.24 | 4.41 | 1.42 | 1.26 | 15.3% | 10.8% | 4.5% | .278 | 1.60 | .307 | 68.8% | 5.15 | ||||||
| 2026 | OOPSY | ROS | 7.31 | 3.38 | 2.16 | 0.97 | 20.4% | 9.4% | 10.9% | .252 | 1.27 | .299 | 66.7% | 4.18 |
