Statcast's expected ERA (xERA) strips away sequencing, defense, and batted-ball luck to estimate what a pitcher should have allowed based on quality of contact. When a team's actual ERA runs well above its xERA, that gap is a pitching-luck signal. The staff isn't necessarily bad. It's unlucky. Balls are finding holes, bloopers are dropping in, and hard-hit outs are turning into doubles. The reverse is also true, and equally unstable.
We're deep enough into the 2026 season for this signal to carry weight. Here's who sits at each extreme.
Most Cursed by ERA minus xERA
1. Los Angeles Dodgers - The Dodgers own the largest negative gap between xERA and actual ERA in baseball. Their pitchers have been squeezed by batted-ball outcomes that don't match the quality of contact they've generated. If you think the staff has underperformed, the underlying data agrees with you.
2. Detroit Tigers - Detroit's pitching has looked worse than it is. Their xERA suggests a rotation and bullpen performing well above their surface-level numbers, but the results haven't followed. The Tigers are a regression candidate in the friendliest possible sense of the term.
3. Seattle Mariners - Seattle's identity is supposed to be pitching. By xERA, it still is. By actual ERA, the narrative has gotten muddier. The gap between the two tells a story of misfortune more than misexecution.
4. New York Yankees - The Bronx staff ranks fourth in cursed pitching luck, carrying an ERA inflated beyond what Statcast's contact metrics would predict. Some of this is the defense behind them. Some of it is just noise.
5. Milwaukee Brewers - Milwaukee rounds out the top five. Their pitchers have limited hard contact at a reasonable rate, but the scoreboard hasn't been kind. The gap suggests better days ahead, assuming health cooperates.
Most Blessed by ERA minus xERA
1. Tampa Bay Rays - Tampa Bay's pitching staff has the most favorable luck gap in the majors. Their actual ERA sits comfortably below their xERA, meaning hitters have been making solid contact that just hasn't done damage. That tends to correct itself.
Baseball's most predictable team is also its luckiest. Make of that what you will.
2. San Diego Padres - The Padres' staff has outperformed its expected numbers by a significant margin. Strong defense and some fortunate BABIP outcomes have kept runs off the board beyond what contact quality alone would justify.
3. St. Louis Cardinals - St. Louis has gotten results that exceed the underlying quality of contact allowed. Their pitching looks better than the batted-ball data says it should, a gap that tends to narrow as the season wears on.
4. Cincinnati Reds - The Reds, not exactly known for pitching dominance, have benefited from favorable sequencing and batted-ball outcomes. Their ERA flatters a staff that xERA views more skeptically.
5. Philadelphia Phillies - Philly's staff closes out the blessed list. The Phillies have suppressed runs beyond what the contact data would predict, giving them a cushion that may thin over the summer months.
What This Tells Us
The spread from most cursed to most blessed represents the full range of batted-ball fortune across the league. Historically, ERA minus xERA is one of the more reliable regression signals in baseball. Teams at the extremes in May tend to drift back toward their expected numbers by August. That doesn't mean every cursed staff will suddenly dominate or every blessed staff will collapse. It means the gap closes, usually by 60 to 70 percent over a full season.
For the Dodgers and Tigers, that's genuinely good news. For the Rays and Padres, it's a reason to temper expectations just slightly.
Luck is not a strategy. But it is, for now, a scoreboard.
