Ynoa has thrown 350 pitches over 27 IP this season, and his results have been amazing. His 2.69 ERA really happened, and really helped the Braves win, so no stat can change that fact. However, what we can look at is how well he is likely to perform moving forward.
The first step in that is to take a look at his arsenal.
FA: 96.7 mph (Grade 65), 4.5" X-Mov (Grade 45), 8.8" Z-Mov (Grade 50)
Plus velocity with movement that is roughly average. The numbers show what we see when he pitches...this heater is plus or better.
SL: 84.9 mph (Grade 50), 1.4" X-Mov (Grade 45), -4.1" Z-Mov (Grade 75)
Ynoa's single breaking ball is a downer slider, or maybe some would call it a power curve. Whatever you call the pitch, it is plus or better.
CH: 8.8 mph delta (Grade 55), 8.0" X-Mov (Grade 55), 4.7" Z-Mov (50)
By far his 3rd most used pitch, the CH has the shape of an above average offering. As is the case with most 2-pitch guys, the development of this pitch will be key to sustained success as a SP.
Command: 1.98 BB/9 (Grade 70)
The key to Ynoa's improvement has been his excellent control in 2021. This type of control allows a 2-pitch guy to perform like a #3 without needing a CH.
Overall:
Ynoa's sterling 2.69 ERA comes with some pretty big warning lights. His .348 xwOBA (compared to his actual .278 wOBA allowed) suggests he has performed more like a #5 who has lucked into the results of a TOR SP. His .230 BABIP against suggests the same thing, as does his 88.9% LOB%. When the batted balls stop being caught, and the runners on stop being stranded at these unsustainable rates, his overall results will suffer.
To me, he looks like a prototypical high leverage BP arm who is being stretched out to cover up innings. He can be a true #3 or better if the command holds and the CH continues to develop. If this team had it's real SPs all performing as expected, Ynoa's best role would probably be as the RHP compliment to Will Smith at the end of games.
The first step in that is to take a look at his arsenal.
FA: 96.7 mph (Grade 65), 4.5" X-Mov (Grade 45), 8.8" Z-Mov (Grade 50)
Plus velocity with movement that is roughly average. The numbers show what we see when he pitches...this heater is plus or better.
SL: 84.9 mph (Grade 50), 1.4" X-Mov (Grade 45), -4.1" Z-Mov (Grade 75)
Ynoa's single breaking ball is a downer slider, or maybe some would call it a power curve. Whatever you call the pitch, it is plus or better.
CH: 8.8 mph delta (Grade 55), 8.0" X-Mov (Grade 55), 4.7" Z-Mov (50)
By far his 3rd most used pitch, the CH has the shape of an above average offering. As is the case with most 2-pitch guys, the development of this pitch will be key to sustained success as a SP.
Command: 1.98 BB/9 (Grade 70)
The key to Ynoa's improvement has been his excellent control in 2021. This type of control allows a 2-pitch guy to perform like a #3 without needing a CH.
Overall:
Ynoa's sterling 2.69 ERA comes with some pretty big warning lights. His .348 xwOBA (compared to his actual .278 wOBA allowed) suggests he has performed more like a #5 who has lucked into the results of a TOR SP. His .230 BABIP against suggests the same thing, as does his 88.9% LOB%. When the batted balls stop being caught, and the runners on stop being stranded at these unsustainable rates, his overall results will suffer.
To me, he looks like a prototypical high leverage BP arm who is being stretched out to cover up innings. He can be a true #3 or better if the command holds and the CH continues to develop. If this team had it's real SPs all performing as expected, Ynoa's best role would probably be as the RHP compliment to Will Smith at the end of games.