Every week, across every league worth tracking, a handful of teams look at the standings and see a reflection that doesn't match the mirror. This week the list is short, concentrated, and exclusively American. The New York Mets, the Detroit Tigers, and the Boston Red Sox are the three unluckiest teams in world sport right now. All three play in Major League Baseball. All three have Pythagorean win totals that tell a materially different story than their actual records. And all three are bleeding wins in the margins, game by agonizing game.
We found only three teams across global sport clearing our luckscore threshold this week, so the usual five-deep ranking runs just three. Sometimes the curse is selective.
1. New York Mets - MLB
The Mets own the worst Luck Index in our cross-sport model at -53, and the record reads accordingly: 37-53 through 90 games. That is not good. But the Pythagorean expectation, which estimates wins based on runs scored and runs allowed, pegs them closer to 39 wins. The gap is modest in raw numbers, but context matters. Two extra wins in a 90-game window is roughly the difference between historically bad and merely very bad.
What makes the Mets' case remarkable is less the magnitude of the gap than its stubborn consistency. They have been on the wrong side of one-run decisions all season, converting close games into losses at a rate that outpaces their overall run differential. Their bullpen ERA in the seventh inning and later sits nearly a full run above their starters' marks, meaning leads evaporate precisely when they're most expensive.
The Mets are not a secret contender being robbed by fate. They are a struggling team being made to look slightly worse than they are. That distinction matters in July.
2. Detroit Tigers - MLB
Detroit's Luck Index matches New York's at -53, but the underlying story is sharper. The Tigers are 40-50. Their Pythagorean record says they should be approximately 46-44. That is a six-win gap, which over a full season projects to something north of ten wins. In a league where the wild-card margin is often three or four games, that is not a rounding error. That is a different team.
The Tigers have been outscoring opponents at a rate that, historically, produces a winning record. Their run differential suggests a club hovering right around .500, not one sitting ten games below it. The culprit, as usual in these cases, is sequencing. Detroit has scored runs in bunches in blowout wins and gone quiet in tight losses, distributing its offense in the least efficient way possible.
If regression arrives, and it tends to, the Tigers' second half could look meaningfully different from their first. Whether the front office holds its nerve long enough to find out is another question.
3. Boston Red Sox - MLB
Boston registers a Luck Index of -38. At 40-48, the Red Sox sit three games under .500. Pythagorean modeling suggests they belong closer to 45 wins, which would put them right on the fringes of a crowded American League playoff race instead of watching it from a polite distance.
The five-win Pythagorean gap is built on familiar architecture. Boston's bullpen has been league-average by ERA but considerably worse in high-leverage situations, and the offense has tended to pile on in games already decided. Their record in games decided by two runs or fewer is among the worst in the AL, a pattern that smells far more like variance than talent deficiency.
Five wins is roughly the gap between buyer and seller at the trade deadline. The Red Sox are currently being priced as sellers. The numbers suggest the market may have them wrong.
The Common Thread
All three teams share the same basic affliction: sequencing variance. They score enough runs and allow few enough to merit better records, but the timing is off. Runs cluster in laughers. Bullpens falter in the ninth. Close games break the wrong way at rates that exceed what skill alone can explain. In the broader xg luck ranking conversation that dominates soccer analytics, baseball's Pythagorean model serves the same function, isolating what a team produces from what a team wins. Right now, these three clubs sit on the wrong side of that divide, waiting for the math to come collect what it's owed.
