Mason Marriott
Arizona Diamondbacks (AA)P
Age: 24
Bats/Throws: L/R
6'0" / 198
DOB: 8/14/2002
(24 years, 2 months, 30 days)
P
Player Dashboard:
Report: 2026 Updated
Org Rk
Ovr Rk
ETA
FV
22
N/A
2027
40
Fastball
45 / 50
Slider
45 / 50
Curveball
55 / 60
Command
35 / 55
RosterResource
| How Acquired: | Draft |
| Draft: | 2024, Rd: 6, Pick: 29, Ovr: 194 |
| Draft Team: | Arizona Diamondbacks |
| Signing Bonus: | $241,000 |
| College: | Baylor (Waco, USA) |
Rule 5 Eligible
Dec'27
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RG
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Report: 2026 Updated
Org Rk
Ovr Rk
ETA
FV
22
N/A
2027
40
Fastball
45 / 50
Slider
45 / 50
Curveball
55 / 60
Command
35 / 55
RosterResource
| How Acquired: | Draft |
| Draft: | 2024, Rd: 6, Pick: 29, Ovr: 194 |
| Draft Team: | Arizona Diamondbacks |
| Signing Bonus: | $241,000 |
| College: | Baylor (Waco, USA) |
Rule 5 Eligible
Dec'27
News Settings
Article Source
All
FG
RG
Show
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Preseason ProjectionsMinor LeaguesCollege
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 19 | 2 | 3 | 5 | 18 | 1 | 25.2 | 7.71 | 9.12 | 1.05 | .278 | 71.1% | 5.96 | 7.11 | |||||||||
| 2023 | BAY | NCAA | 20 | 1 | 7 | 0 | 14 | 14 | 58.2 | 7.67 | 6.14 | 1.07 | .355 | 58.8% | 7.52 | 6.28 | |||||||||
| 2024 | BAY | NCAA | 21 | 3 | 7 | 0 | 14 | 14 | 69.2 | 8.40 | 4.78 | 0.78 | .335 | 62.2% | 5.94 | 5.09 | |||||||||
| 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 | ARI | CPX | 23 | 0 | 1 | 0 | 3 | 3 | 3.2 | 7.36 | 2.45 | 4.91 | .300 | 93.8% | 33.3% | 50.0% | 7.36 | 11.17 | 5.71 | ||||||
| 2026 | ARI | A+ | 23 | 0 | 1 | 0 | 6 | 5 | 13.2 | 12.51 | 1.98 | 0.00 | .276 | 54.5% | 46.4% | 0.0% | 3.29 | 1.60 | 2.28 | ||||||
| 2026 | ARI | AA | 23 | 0 | 1 | 0 | 3 | 3 | 6.1 | 11.37 | 2.84 | 4.26 | .474 | 71.4% | 36.4% | 75.0% | 8.53 | 8.28 | 3.37 | ||||||
| 2026 | ARI | MiLB | 23 | 0 | 3 | 0 | 12 | 11 | 23.2 | 11.41 | 2.28 | 1.90 | .345 | 66.7% | 40.3% | 38.5% | 5.32 | 4.87 | 3.10 | ||||||
| 2027 | Steamer | PROJ | 24 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.34 | 3.29 | 1.15 | .304 | 70.5% | 44.6% | 4.51 | 4.34 | 4.31 | 0.0 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 19 | 2 | 3 | 5 | 18 | 1 | 25.2 | 7.71 | 9.12 | 1.05 | .278 | 71.1% | 5.96 | 7.11 | |||||||||
| 2023 | BAY | NCAA | 20 | 1 | 7 | 0 | 14 | 14 | 58.2 | 7.67 | 6.14 | 1.07 | .355 | 58.8% | 7.52 | 6.28 | |||||||||
| 2024 | BAY | NCAA | 21 | 3 | 7 | 0 | 14 | 14 | 69.2 | 8.40 | 4.78 | 0.78 | .335 | 62.2% | 5.94 | 5.09 | |||||||||
| 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 | ARI | CPX | 23 | 0 | 1 | 0 | 3 | 3 | 3.2 | 7.36 | 2.45 | 4.91 | .300 | 93.8% | 33.3% | 50.0% | 7.36 | 11.17 | 5.71 | ||||||
| 2026 | ARI | A+ | 23 | 0 | 1 | 0 | 6 | 5 | 13.2 | 12.51 | 1.98 | 0.00 | .276 | 54.5% | 46.4% | 0.0% | 3.29 | 1.60 | 2.28 | ||||||
| 2026 | ARI | AA | 23 | 0 | 1 | 0 | 3 | 3 | 6.1 | 11.37 | 2.84 | 4.26 | .474 | 71.4% | 36.4% | 75.0% | 8.53 | 8.28 | 3.37 | ||||||
| 2026 | ARI | MiLB | 23 | 0 | 3 | 0 | 12 | 11 | 23.2 | 11.41 | 2.28 | 1.90 | .345 | 66.7% | 40.3% | 38.5% | 5.32 | 4.87 | 3.10 | ||||||
| 2027 | Steamer | PROJ | 24 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.34 | 3.29 | 1.15 | .304 | 70.5% | 44.6% | 4.51 | 4.34 | 4.31 | 0.0 |
Preseason ProjectionsMinor LeaguesCollege
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ARI | CPX | 0 | 1 | 7.36 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 3.2 | 16 | 5 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | |
| 2026 | ARI | A+ | 0 | 1 | 3.29 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 13.2 | 51 | 8 | 5 | 5 | 0 | 3 | 0 | 0 | 0 | 1 | 19 | |
| 2026 | ARI | AA | 0 | 1 | 8.53 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 6.1 | 32 | 12 | 7 | 6 | 3 | 2 | 0 | 0 | 1 | 0 | 8 | |
| 2026 | ARI | MiLB | 0 | 3 | 5.32 | 12 | 11 | 0 | 0 | 0 | 0 | 0 | 23.2 | 99 | 25 | 15 | 14 | 5 | 6 | 0 | 0 | 1 | 1 | 30 | |
| 2027 | Steamer | PROJ | 0 | 0 | 4.51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ARI | CPX | 0 | 1 | 7.36 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 3.2 | 16 | 5 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | |
| 2026 | ARI | A+ | 0 | 1 | 3.29 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 13.2 | 51 | 8 | 5 | 5 | 0 | 3 | 0 | 0 | 0 | 1 | 19 | |
| 2026 | ARI | AA | 0 | 1 | 8.53 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 6.1 | 32 | 12 | 7 | 6 | 3 | 2 | 0 | 0 | 1 | 0 | 8 | |
| 2026 | ARI | MiLB | 0 | 3 | 5.32 | 12 | 11 | 0 | 0 | 0 | 0 | 0 | 23.2 | 99 | 25 | 15 | 14 | 5 | 6 | 0 | 0 | 1 | 1 | 30 | |
| 2027 | Steamer | PROJ | 0 | 0 | 4.51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
Preseason ProjectionsMinor LeaguesAveragesCollege
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 7.71 | 9.12 | 0.85 | 1.05 | 17.5% | 20.6% | -3.2% | .237 | 1.91 | .278 | 71.1% | 111 | 132 | 7.11 | ||||
| 2023 | BAY | NCAA | 7.67 | 6.14 | 1.25 | 1.07 | 17.2% | 13.8% | 3.4% | .300 | 1.91 | .355 | 58.8% | 143 | 119 | 6.28 | ||||
| 2024 | BAY | NCAA | 8.40 | 4.78 | 1.76 | 0.78 | 20.1% | 11.5% | 8.7% | .271 | 1.61 | .335 | 62.2% | 113 | 97 | 5.09 | ||||
| 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 | ARI | CPX | 7.36 | 2.45 | 3.00 | 4.91 | 18.8% | 6.3% | 12.5% | .333 | 1.64 | .300 | 93.8% | 124 | 184 | 11.17 | ||||
| 2026 | ARI | A+ | 12.51 | 1.98 | 6.33 | 0.00 | 37.3% | 5.9% | 31.4% | .167 | 0.80 | .276 | 54.5% | 67 | 33 | 1.60 | ||||
| 2026 | ARI | AA | 11.37 | 2.84 | 4.00 | 4.26 | 25.0% | 6.3% | 18.8% | .400 | 2.21 | .474 | 71.4% | 145 | 147 | 8.28 | ||||
| 2026 | ARI | MiLB | 11.41 | 2.28 | 5.00 | 1.90 | 30.3% | 6.1% | 24.2% | .269 | 1.31 | .345 | 66.7% | 96 | 87 | 4.87 | ||||
| 2027 | Steamer | PROJ | 7.34 | 3.29 | 2.23 | 1.15 | 18.7% | 8.4% | 10.3% | .264 | 1.41 | .304 | 70.5% | 4.34 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | BAY | NCAA | 7.71 | 9.12 | 0.85 | 1.05 | 17.5% | 20.6% | -3.2% | .237 | 1.91 | .278 | 71.1% | 111 | 132 | 7.11 | ||||
| 2023 | BAY | NCAA | 7.67 | 6.14 | 1.25 | 1.07 | 17.2% | 13.8% | 3.4% | .300 | 1.91 | .355 | 58.8% | 143 | 119 | 6.28 | ||||
| 2024 | BAY | NCAA | 8.40 | 4.78 | 1.76 | 0.78 | 20.1% | 11.5% | 8.7% | .271 | 1.61 | .335 | 62.2% | 113 | 97 | 5.09 | ||||
| 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 | ARI | CPX | 7.36 | 2.45 | 3.00 | 4.91 | 18.8% | 6.3% | 12.5% | .333 | 1.64 | .300 | 93.8% | 124 | 184 | 11.17 | ||||
| 2026 | ARI | A+ | 12.51 | 1.98 | 6.33 | 0.00 | 37.3% | 5.9% | 31.4% | .167 | 0.80 | .276 | 54.5% | 67 | 33 | 1.60 | ||||
| 2026 | ARI | AA | 11.37 | 2.84 | 4.00 | 4.26 | 25.0% | 6.3% | 18.8% | .400 | 2.21 | .474 | 71.4% | 145 | 147 | 8.28 | ||||
| 2026 | ARI | MiLB | 11.41 | 2.28 | 5.00 | 1.90 | 30.3% | 6.1% | 24.2% | .269 | 1.31 | .345 | 66.7% | 96 | 87 | 4.87 | ||||
| 2027 | Steamer | PROJ | 7.34 | 3.29 | 2.23 | 1.15 | 18.7% | 8.4% | 10.3% | .264 | 1.41 | .304 | 70.5% | 4.34 |
Preseason ProjectionsMinor LeaguesCollege
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | ARI | A | 1.43 | 15.0% | 50.0% | 35.0% | 14.3% | 0.0% | 45.0% | 30.0% | 25.0% | 80 | 3.84 | |||||||||
| 2025 | ARI | A+ | 2.18 | 18.6% | 55.8% | 25.6% | 9.1% | 0.0% | 63.6% | 15.9% | 20.5% | 65 | 2.91 | |||||||||
| 2026 | ARI | CPX | 1.00 | 33.3% | 33.3% | 33.3% | 25.0% | 50.0% | 33.3% | 25.0% | 41.7% | 93 | 5.71 | |||||||||
| 2026 | ARI | A+ | 2.60 | 35.7% | 46.4% | 17.9% | 0.0% | 0.0% | 35.7% | 17.9% | 46.4% | 46 | 2.28 | |||||||||
| 2026 | ARI | AA | 2.00 | 45.5% | 36.4% | 18.2% | 0.0% | 75.0% | 45.5% | 45.5% | 9.1% | 67 | 3.37 | |||||||||
| 2026 | ARI | MiLB | 1.92 | 38.7% | 40.3% | 21.0% | 7.7% | 38.5% | 38.7% | 29.0% | 32.3% | 59 | 3.10 | |||||||||
| 2027 | Steamer | PROJ | 20.7% | 44.6% | 34.6% | 4.31 |
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | ARI | A | 1.43 | 15.0% | 50.0% | 35.0% | 14.3% | 0.0% | 45.0% | 30.0% | 25.0% | 80 | 3.84 | |||||||||
| 2025 | ARI | A+ | 2.18 | 18.6% | 55.8% | 25.6% | 9.1% | 0.0% | 63.6% | 15.9% | 20.5% | 65 | 2.91 | |||||||||
| 2026 | ARI | CPX | 1.00 | 33.3% | 33.3% | 33.3% | 25.0% | 50.0% | 33.3% | 25.0% | 41.7% | 93 | 5.71 | |||||||||
| 2026 | ARI | A+ | 2.60 | 35.7% | 46.4% | 17.9% | 0.0% | 0.0% | 35.7% | 17.9% | 46.4% | 46 | 2.28 | |||||||||
| 2026 | ARI | AA | 2.00 | 45.5% | 36.4% | 18.2% | 0.0% | 75.0% | 45.5% | 45.5% | 9.1% | 67 | 3.37 | |||||||||
| 2026 | ARI | MiLB | 1.92 | 38.7% | 40.3% | 21.0% | 7.7% | 38.5% | 38.7% | 29.0% | 32.3% | 59 | 3.10 | |||||||||
| 2027 | Steamer | PROJ | 20.7% | 44.6% | 34.6% | 4.31 |
Preseason ProjectionsMinor LeaguesCollege
MLB F-Strike%, SwStr%, CStr%, CSW% are from the Sports Info Solution data source.
All MiLB and Pace data are from Statcast.
All MiLB and Pace data are from Statcast.
Preseason ProjectionsMinor LeaguesAveragesCollege
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | ARI | A | 50.0% | 70.8% | 51.9% | 14.6% | 15.6% | 30.2% | |||||||||
| 2025 | ARI | A+ | 45.2% | 72.1% | 44.2% | 12.6% | 16.9% | 29.5% | |||||||||
| 2026 | ARI | CPX | 50.0% | 70.4% | 31.3% | 14.8% | 13.0% | 27.8% | |||||||||
| 2026 | ARI | A+ | 44.7% | 68.8% | 54.9% | 13.9% | 16.3% | 30.3% | |||||||||
| 2026 | ARI | AA | 53.1% | 73.5% | 56.3% | 14.1% | 11.7% | 25.8% | |||||||||
| 2026 | ARI | MiLB | 48.2% | 70.7% | 51.5% | 14.1% | 14.4% | 28.5% |
| Season | Team | Level | O-Swing% | Z-Swing% | Swing% | divider | O-Contact% | Z-Contact% | Contact% | Zone% | divider | F-Strike% | SwStr% | CStr% | CSW% | divider | Pace |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | ARI | A | 50.0% | 70.8% | 51.9% | 14.6% | 15.6% | 30.2% | |||||||||
| 2025 | ARI | A+ | 45.2% | 72.1% | 44.2% | 12.6% | 16.9% | 29.5% | |||||||||
| 2026 | ARI | CPX | 50.0% | 70.4% | 31.3% | 14.8% | 13.0% | 27.8% | |||||||||
| 2026 | ARI | A+ | 44.7% | 68.8% | 54.9% | 13.9% | 16.3% | 30.3% | |||||||||
| 2026 | ARI | AA | 53.1% | 73.5% | 56.3% | 14.1% | 11.7% | 25.8% | |||||||||
| 2026 | ARI | MiLB | 48.2% | 70.7% | 51.5% | 14.1% | 14.4% | 28.5% |
