| W | L | ERA | G | GS | SV | IP | SO | WHIP | |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 4 | 1 | 2.74 | 20 | 1 | 1 | 23 | 33 | 1.26 |
| Career Minors | 21 | 15 | 3.40 | 187 | 5 | 14 | 243.1 | 281 | 1.21 |
| G | W-L | ERA | IP | SO | WHIP | |
|---|---|---|---|---|---|---|
| 2025 | 20 | 4-1 | 2.74 | 23 | 33 | 1.26 |
| Career Minors | 187 | 21-15 | 3.40 | 243.1 | 281 | 1.21 |
| Season | Tm | LG | L | W | L | ERA | G | GS | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 3 Teams | Minors | 0 | 1 | 7.04 | 6 | 1 | 0 | 7.2 | 7 | 7 | 6 | 1 | 3 | 8 | 1.30 | |
| 2021 | FCL Tigers East | FCL | ROK | 0 | 0 | 0.00 | 1 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.00 |
| 2021 | Lakeland Flying Tigers | A SE | A | 0 | 0 | 0.00 | 3 | 0 | 0 | 4.0 | 2 | 1 | 0 | 0 | 1 | 2 | 0.75 |
| 2021 | West Michigan Whitecaps | A+ C | A+ | 0 | 1 | 20.25 | 2 | 1 | 0 | 2.2 | 5 | 6 | 6 | 1 | 2 | 4 | 2.63 |
| 2022 | 2 Teams | Minors | 3 | 1 | 3.67 | 49 | 0 | 5 | 54.0 | 46 | 28 | 22 | 6 | 18 | 62 | 1.19 | |
| 2022 | Lakeland Flying Tigers | FSL | A | 1 | 0 | 2.19 | 9 | 0 | 4 | 12.1 | 9 | 3 | 3 | 1 | 4 | 16 | 1.05 |
| 2022 | West Michigan Whitecaps | MID | A+ | 2 | 1 | 4.10 | 40 | 0 | 1 | 41.2 | 37 | 25 | 19 | 5 | 14 | 46 | 1.22 |
| 2023 | 2 Teams | Minors | 2 | 4 | 3.49 | 42 | 1 | 3 | 56.2 | 64 | 29 | 22 | 6 | 18 | 56 | 1.45 | |
| 2023 | West Michigan Whitecaps | MID | A+ | 0 | 0 | 0.00 | 5 | 0 | 1 | 5.0 | 2 | 0 | 0 | 0 | 1 | 8 | 0.60 |
| 2023 | Erie SeaWolves | EAS | AA | 2 | 4 | 3.83 | 37 | 1 | 2 | 51.2 | 62 | 29 | 22 | 6 | 17 | 48 | 1.53 |
| 2024 | Erie SeaWolves | EAS | AA | 6 | 7 | 3.68 | 43 | 1 | 3 | 58.2 | 42 | 29 | 24 | 2 | 27 | 76 | 1.18 |
| 2025 | 2 Teams | Minors | 10 | 2 | 2.44 | 47 | 2 | 3 | 66.1 | 48 | 20 | 18 | 4 | 22 | 79 | 1.06 | |
| 2025 | Erie SeaWolves | EAS | AA | 6 | 1 | 2.28 | 27 | 1 | 2 | 43.1 | 29 | 13 | 11 | 2 | 12 | 46 | 0.95 |
| 2025 | Toledo Mud Hens | INT | AAA | 4 | 1 | 2.74 | 20 | 1 | 1 | 23.0 | 19 | 7 | 7 | 2 | 10 | 33 | 1.26 |
| FCL Tigers | FCL | ROK | 0 | 0 | 0.00 | 1 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.00 | |
| Toledo Mud Hens | INT | AAA | 4 | 1 | 2.74 | 20 | 1 | 1 | 23.0 | 19 | 7 | 7 | 2 | 10 | 33 | 1.26 | |
| Erie SeaWolves | EAS | AA | 14 | 12 | 3.34 | 107 | 3 | 7 | 153.2 | 133 | 71 | 57 | 10 | 56 | 170 | 1.23 | |
| West Michigan Whitecaps | MID | A+ | 2 | 2 | 4.56 | 47 | 1 | 2 | 49.1 | 44 | 31 | 25 | 6 | 17 | 58 | 1.24 | |
| Lakeland Flying Tigers | FSL | A | 1 | 0 | 1.65 | 12 | 0 | 4 | 16.1 | 11 | 4 | 3 | 1 | 5 | 18 | 0.98 | |
| Career Minors | 5 Teams | 21 | 15 | 3.40 | 187 | 5 | 14 | 243.1 | 207 | 113 | 92 | 19 | 88 | 281 | 1.21 |
Scouting grades: Fastball: 50 | Slider: 60 | Changeup: 50 | Control: 45 | Overall: 40
Petit was a two-time All-Big South First Team selection at Charleston Southern, including as a junior starter in 2021 when he posted a 2.79 ERA in 84 frames. The Tigers selected him in the 14th round that summer and signed him for $125,000, making him the first Charleston Southern player drafted in three years. Petit immediately moved into a relief role in the pros and has remained there since. He pitched well in Double-A in 2024 but was left unprotected and unpicked in that December's Rule 5 Draft. After a strong 2025 campaign that saw him reach Triple-A, Petit was once again left unprotected, but this time the Rockies made him the top pick of the Rule 5.
Standing at 6-foot-8, Petit is a tremendous presence on the mound. He doesn’t get big extension out of that frame, instead using his height to create a steep downward plane leading to solid groundball rates. There is some velocity here, touching 98 mph while sitting 94-96, and he's worked to generate a bit more heat. Petit’s 83-85 mph gyro slider is much better at generating swing-and-miss and chase low in the zone with strong depth, and the Rockies think it's the kind of breaking ball that should play in Coors Field. He can tunnel his 86-89 mph changeup well enough off the fastball with just enough velocity separation for it to be effective.
Petit has shown the ability to get righties and lefties out at the upper levels, and he was able to get his walk rate back down in 2025 to 3.0 per nine after seeing it creep up in 2024 (4.1 BB/9). He'll get his chance to stick with the Rockies, who see him as a potential bulk reliever.
| Team | Date | Transaction |
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12/10/2025 | Colorado Rockies purchased contract of RHP RJ Petit in the Rule 5 Draft. |
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07/22/2025 | RHP RJ Petit assigned to Toledo Mud Hens from Erie SeaWolves. |
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03/06/2025 | activated RHP RJ Petit. |
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02/24/2025 | RHP RJ Petit assigned to Detroit Tigers. |
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03/07/2024 | Detroit Tigers Prospects activated RHP RJ Petit. |
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02/27/2024 | RHP RJ Petit assigned to Detroit Tigers. |
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09/22/2023 | Salt River Rafters activated RHP RJ Petit. |
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04/27/2023 | RHP RJ Petit assigned to Erie SeaWolves from West Michigan Whitecaps. |
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04/27/2023 | Erie SeaWolves activated RHP RJ Petit. |
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04/27/2023 | Erie SeaWolves activated RHP RJ Petit. |
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03/08/2023 | RHP RJ Petit roster status changed by Detroit Tigers. |
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03/08/2023 | RHP RJ Petit assigned to Detroit Tigers. |
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06/13/2022 | RHP RJ Petit assigned to West Michigan Whitecaps from Lakeland Flying Tigers. |
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06/13/2022 | West Michigan Whitecaps activated RHP RJ Petit. |
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05/16/2022 | RHP RJ Petit assigned to Lakeland Flying Tigers from West Michigan Whitecaps. |
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04/01/2022 | RHP RJ Petit assigned to Detroit Tigers. |
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04/01/2022 | RHP RJ Petit roster status changed by Detroit Tigers. |
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09/14/2021 | RHP RJ Petit assigned to West Michigan Whitecaps from Lakeland Flying Tigers. |
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09/02/2021 | RHP RJ Petit assigned to Lakeland Flying Tigers from FCL Tigers East. |
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08/30/2021 | RHP RJ Petit assigned to FCL Tigers East. |
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07/23/2021 | Detroit Tigers signed RHP RJ Petit. |