| W | L | ERA | G | GS | SV | IP | SO | WHIP | |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 0 | 2.25 | 2 | 1 | 0 | 8 | 12 | 0.63 |
| Career Minors | 1 | 0 | 2.25 | 2 | 1 | 0 | 8 | 12 | 0.63 |
| G | W-L | ERA | IP | SO | WHIP | |
|---|---|---|---|---|---|---|
| 2026 | 2 | 1-0 | 2.25 | 8 | 12 | 0.63 |
| Career Minors | 2 | 1-0 | 2.25 | 8 | 12 | 0.63 |
| Season | Tm | LG | L | W | L | ERA | G | GS | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Lakeland Flying Tigers | FSL | A | 1 | 0 | 2.25 | 2 | 1 | 0 | 8.0 | 2 | 2 | 2 | 0 | 3 | 12 | 0.63 |
| Lakeland Flying Tigers | FSL | A | 1 | 0 | 2.25 | 2 | 1 | 0 | 8.0 | 2 | 2 | 2 | 0 | 3 | 12 | 0.63 | |
| Career Minors | Lakeland Flying Tigers | FSL | 1 | 0 | 2.25 | 2 | 1 | 0 | 8.0 | 2 | 2 | 2 | 0 | 3 | 12 | 0.63 |
Scouting grades: Fastball: 45 | Slider: 50 | Changeup: 60 | Control: 55 | Overall: 40
A solid two-way player during his time at Reno High School, Grinsell put the bat down to focus on pitching when he headed to the University of Oregon. After spending his freshman season almost exclusively pitching out of the 'pen, he became a starter in 2024 and was the sole returnee from the Ducks’ weekend rotation. Serving as the Friday night starter, he was named to the first all-Big 10 team and became just the sixth Oregon pitcher in history to surpass 200 career strikeouts.
Grinsell is the epitome of a college pitchability lefty whose feel is better than any individual offering in his repertoire. His fastball tops out at 92 mph, but it’s one of those “invisible” heaters hitters don’t square up. That appears to be for two reasons: the impressive extension he gets when throwing the pitch so it gets on hitters in a hurry and the feel he has for his outstanding changeup. He throws the cambio around 80 mph, selling it with tremendous arm speed and throwing it with good fade to hitters from both sides of the plate. He mixes in a breaking ball as well, but doesn’t lean on it as much as the other two.
Allowing Grinsell’s stuff to play up is his excellent command of all of it and he projects as an above-average strike-thrower at the next level. His ability to stick in a rotation might come down to whether he can develop a breaking ball he uses more consistently, but that invisible fastball-changeup combination, along with him posting every weekend this year, should get him plenty of looks.
Scouting grades: Fastball: 45 | Slider: 50 | Changeup: 60 | Control: 55 | Overall: 40
Grinsell made a big leap between his sophomore and junior seasons at Oregon, lowering his ERA by a full run and cutting his walk rate in half while becoming just the sixth pitcher in Ducks history to post 200 career strikeouts. While he wasn’t overpowering, his ability to miss bats and his athleticism -- he was a very good two-way player in high school -- led the Tigers to take a sixth-round pick on him in the 2025 Draft and sign him for $297,500.
Deception is the name of the game for Grinsell, who doesn’t have a dominant pitch but has a good feel for sequencing and reading hitters. His fastball sits in the low 90s but plays up thanks in part to extension and location. It also sets up an 80 mph changeup that he hides well with a similar delivery. His slider was his third pitch in college. While he fits into the Tigers’ pitching philosophy of commanding the strike zone, he could also add velocity if the club can improve his delivery.
Projection can be difficult with a college pitcher, but Grinsell’s athleticism provides some potential for upside if he can find another tick or two on his fastball, which could then make his changeup that much better. He’ll need an effective breaking pitch to make it as a starter, but a good fastball-changeup combination could be the foundation for a potential crafty lefty reliever.
Scouting grades: Fastball: 45 | Slider: 50 | Changeup: 60 | Control: 55 | Overall: 40
A solid two-way player during his time at Reno High School, Grinsell put the bat down to focus on pitching when he headed to the University of Oregon. After spending his freshman season almost exclusively pitching out of the 'pen, he became a starter in 2024 and was the sole returnee from the Ducks’ weekend rotation. Serving as the Friday night starter, he was named to the All-Big 10 First Team and became just the sixth Oregon pitcher in history to surpass 200 career strikeouts. The Tigers selected him in the sixth round and signed him for $297,500.
Grinsell is the epitome of a college-pitchability lefty whose feel is better than any individual offering in his repertoire. His fastball tops out at 92 mph, but it’s one of those “invisible” heaters hitters don’t square up. That appears to be for two reasons: the impressive extension he gets when throwing the pitch so that it gets on hitters in a hurry, and the feel he has for his outstanding changeup. He throws the cambio around 80 mph, selling it with tremendous arm speed and throwing it with good fade to hitters from both sides of the plate. He mixes in a breaking ball as well, but doesn’t lean on it as much as the other two.
Allowing Grinsell’s stuff to play up is his excellent command of all of it, and he projects as an above-average strike-thrower at the pro level. His ability to stick in a rotation might come down to whether he can develop a breaking ball he uses more consistently, but that invisible fastball-changeup combination -- along with him posting every weekend this year -- should get him plenty of looks.
| Team | Date | Transaction |
|---|---|---|
|
04/02/2026 | LHP Grayson Grinsell assigned to Lakeland Flying Tigers from FCL Tigers. |
|
08/04/2025 | FCL Tigers activated LHP Grayson Grinsell. |
|
|
07/24/2025 | LHP Grayson Grinsell assigned to FCL Tigers. |
|
07/23/2025 | Detroit Tigers signed LHP Grayson Grinsell. |
|
04/03/2024 | LHP Grayson Grinsell assigned to Hyannis Harbor Hawks. |
|
02/08/2024 | LHP Grayson Grinsell assigned to Oregon Ducks. |
|
|
03/11/2023 | OF Grayson Grinsell assigned to Oregon Ducks. |
