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Ranking the top 10 worst pitchers in MLB heading into the All-Star break
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- Ranking the top 10 worst pitchers in MLB heading into the All-Star break
When looking at MLB pitchers' statistics, read the ERA column last. This is about how guys are actually pitching, based on xERA, strikeout-minus-walk rate, barrels allowed, not what the scoreboard has let them get away with. And seven of these ten have an ERA better than they've earned, some by more than two full runs. Those aren't good pitchers having bad luck. They're bad pitchers who haven't been caught yet. If you want proof the model isn't broken, start with Zac Gallen : 6.36 ERA, 6.27 xERA, no argument. Then work back up to the guys still hiding.
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10. Colin Rea , Chicago
Colin Rea's 4.74 ERA looks survivable until you check the receipt: a 5.48 xERA, a .74-run cushion he hasn't paid back yet. The 8.6% K-BB% is thin, and 41.6% of contact against him is hard-hit. He's been fine on the scoreboard and mediocre everywhere it counts.
9. Eric Lauer , Los Angeles / Toronto
Jul 6, 2026; Los Angeles, California, USA; Los Angeles Dodgers pitcher Eric Lauer (33) pitches against the Colorado Rockies in the first inning at Dodger Stadium. Mandatory Credit: Kirby Lee-Imagn Images
Eric Lauer's 4.84 ERA is the third-lowest here, and the 5.06 xERA says it's mostly honest with only a 22-run gap. But a 6.4% K-BB% is a genuine problem; when you don't miss bats, everything rides on contact luck. Mostly earned already. The rest is still owed.
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8. Jameson Taillon , Chicago
This is a weird one. Jameson Taillon's 12.5% K-BB% is the best on this entire list, meaning he can miss bats, but hitters are barreling 14.3% of what they touch against him, the second-highest rate here. A 5.19 ERA against a 5.48 xERA. When they connect, it goes a long way.
7. Zac Gallen, Arizona
In Zac Gallen's eighteen starts and 92 innings, he has a 6.36 ERA with a 6.27 xERA sitting right underneath it. Nothing to explain away. A 6.8% K-BB% and 44.4% hard-hit contact is what genuinely getting beaten up looks like. The scoreboard and the skill agree completely.
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6. Steven Matz , Tampa Bay
Steven Matz strikes people out, with a 9.6% K-BB% being respectable here, but it's not saving him. Hitters barrel 13.0% of their contact against him, and the 6.28 ERA is honestly earned against a 5.81 xERA. Good stuff that is hit hard anyway. That's a tough combination to fix.
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5. Simeon Woods Richardson , Minnesota / Toronto
Look at Simeon Woods Richardson's K-BB%: -0.4%. He has walked more hitters than he's struck out. A 6.40 ERA against a 5.92 xERA, a 1.751 WHIP, and one win in ten starts. Nothing is hidden, and nothing needs decoding. He's been every bit as bad as it looks.
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4. Zack Littell , Washington
Jul 10, 2026; Washington, District of Columbia, USA; Washington Nationals pitcher Zack Littell (18) throws to the New York Yankees during the fifth inning at Nationals Park. Mandatory Credit: Brad Mills-Imagn Images
Zack Littell's 5.02 ERA and seven wins are doing a lot of lying. His 6.52 xERA is a run and a half worse, with a 7.0% K-BB% and 46.4% hard-hit contact. He's been living on borrowed time for twelve starts. The bill's coming due.
3. Randy Vásquez, San Diego
The biggest con job in baseball right now belongs to Randy Vásquez. A 4.71 ERA is perfectly respectable, but it is sitting on top of a 7.12 xERA. That's a 2.41-run cushion, the largest gap here, built while opponents hit 47.3% of their contact hard. That's not run prevention, it's a fuse burning.
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2. Tomoyuki Sugano , Colorado
Tomoyuki Sugano's eight wins and 4.80 ERA mask a 7.07 xERA that nobody's noticed. Hitters barrel 14.0% against him, with 44.6% hard-hit. Yes, Coors Field inflates ERA, but the ranking is built on contact quality, not runs allowed, and the contact is loud. A 2.27-run correction is coming.
1. Merrill Kelly , Arizona
The worst underlying pitching in baseball: Merrill Kelly. A 7.77 xERA, a 4.7% K-BB% he can't hide behind, and a 14.5% barrel rate is the highest on this list. The 5.71 ERA and six wins are the cushion, and it's 2.06 runs thick. Lucky, not good.
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