On November 1, 2026, Trevor Bauer summed up the turning point of his big-league career in three sentences posted to X: Cleveland wanted him throwing 55–60% fastballs, his curveball was his best pitch, so he started throwing it to everyone — righties, lefties, whoever stepped in the box. The numbers from 2017 back every word of it.
What He Said, What the Numbers Say
In his first three seasons with Cleveland, Bauer used his curveball just 12% of the time while his fastball sat between 45 and 50%. By 2016 he’d already started shifting the balance — curveball up to 19.5%, fastball down to 26.1%. The real leap came in 2017, when the curve climbed to nearly 30% of his pitches and everything changed.
That season he went 10-2 with a 3.01 ERA and piled up 3.2 WAR in the second half alone. His curveball allowed an OPS of just .556 — 24th-best among all MLB starters, in the same company as Zack Greinke and Jake Arrieta. And the ripple effect went beyond Bauer himself: the Cleveland Indians led all of MLB that year with a 20.6% team curveball rate, generating 56.3 pitching runs above average according to FanGraphs — a historically elite figure.
The Rebellion That Wasn’t Quite Solo
Bauer frames this as a one-man stand against the organization, and that’s a compelling story. But it’s worth adding some texture: ESPN and MLB.com coverage from that era shows that catcher Roberto Pérez and Cleveland’s coaching staff were also pushing toward heavier curveball usage that year. The shift wasn’t purely Bauer vs. the system — it was Bauer recognizing his best pitch and finding a staff willing to let him run with it.
What is entirely his own is the philosophy he built around that pitch. He’s been throwing a 12-to-6 curveball inspired by Barry Zito since he was 10 years old. Today it anchors what he calls the ‘Bauer Triangle’: three pitches, three velocities, three different movement profiles — all released from the same point to tunnel hitters into confusion.
The Argument Is Still Alive in 2026
When Bauer posted that tweet, he was just four days into his new assignment with the Estrellas Orientales in the Dominican LIDOM league, having arrived on October 28. Before that, with the Diablos Rojos del México in the Liga Mexicana de Béisbol, he finished 4-1 with a 4.41 ERA, 31 strikeouts, and just 6 walks in 32.2 innings — not his best stuff, but enough to keep the case going.
In 2024 he won the Liga Mexicana Pitcher of the Year award, going 10-0 with a 2.48 ERA and 120 strikeouts in the regular season while helping the Diablos win the Serie del Rey. No MLB team has signed him in 2026, but Bauer keeps pitching, keeps producing pitching content, and keeps telling the same story: his curveball got him to the big leagues, and it can get him back.
