Brayan Bello isn’t having a bad season in 2026. He’s not having a good one either. He’s having two — and they couldn’t be more different. As a starter, his ERA sits at 10.35 across 35.2 innings. Out of the bullpen, it’s 0.64 across 42 innings. That’s not a slump. That’s not noise. That’s a 9.71-run gap that tells Boston exactly what it needs to hear.
As a Starter: 10 Home Runs, 21 Walks, 22 Strikeouts
The numbers Bello puts up when he takes the ball on opening day of a game are rough. In 35.2 innings as a starter, he’s allowed 10 home runs and issued 21 walks — nearly one free pass every two innings — while striking out just 22 batters. That ratio says it all: he’s not missing bats, he’s not commanding the zone, and he’s not keeping hitters off-balance.
A 10.35 ERA means he’s surrendering more than 10 earned runs per nine innings in that role. In practical terms, he’s handing opponents an advantage before the game even finds its rhythm. The most likely explanation is a familiar one: the second and third time through the order, hitters figure him out. Bello doesn’t have the repertoire or the command to change the script mid-game, and lineups are punishing him for it.
As a Reliever: 0.64 ERA, 37 Strikeouts, Just 5 Walks
Same arm, completely different results. Out of the bullpen, Bello has thrown 42 innings — more than many rotation regulars — and allowed just three earned runs. His ERA: 0.64. He’s struck out 37 and walked only five, compared to 21 walks in the starting role. It’s a statistical transformation that’s hard to believe belongs to the same pitcher.
The logic isn’t complicated: when Bello enters in relief, hitters see him once. There’s no time to read his sequences, no second look to adjust. In that window, his velocity and movement are genuine weapons. The same arsenal that becomes predictable over five or six innings is flat-out dominant over two or three. A 0.64 ERA would rank among the best relievers in the league — and some of the greatest closers in history have posted full seasons around that number.
Boston Has Enough Information. Now What?
With 42 elite innings in the bullpen and 35.2 nightmare innings as a starter, the Red Sox aren’t working with a small sample anymore. The gap is nearly 10 runs of ERA. That’s too large to blame on bad luck, and too consistent to keep ignoring.
The conversation about whether a pitcher is better suited for the bullpen than the rotation isn’t new in modern baseball. There are plenty of precedents — guys who came up as starters because of their raw potential and ended up as bullpen anchors because that’s where their impact was real. In 2026, Bello is making that argument entirely on his own, one outing at a time.
- Starter Bello: 10.35 ERA, 10 HR, 21 BB, 22 K in 35.2 IP
- Reliever Bello: 0.64 ERA, 3 ER, 5 BB, 37 K in 42 IP
There’s a version of Brayan Bello that needs to be pulled from the rotation, and a version that could be one of the most reliable arms in Boston’s bullpen. The trick is to stop using them interchangeably.
