Bottom line: Five teams across MLB, La Liga, and the Bundesliga are suffering the widest gaps between performance and results in world sport.
As of October 19, 2026, the cruelest trick in sports isn't a bad bounce or a missed call. It's systemic, season-long variance, the kind that warps an entire record beyond recognition. This week's cross-sport luck rankings highlight five clubs that share one common humiliation: the underlying numbers insist they deserved better. The Detroit Tigers, San Francisco Giants, New York Mets, Valencia CF, and Borussia Mönchengladbach span two continents, three leagues, and two sports. What unites them is a Luck Index deep enough to make an actuary wince.
For those unfamiliar, the luck score methodology compares actual results to expected results derived from run differentials (Pythagorean expectation in baseball) and expected-goals models (xPoints in football). The wider the gap, the more a team's record has diverged from its underlying quality. Here are the five worst in world sport right now.
1. Detroit Tigers - MLB
The Tigers finished 76-86. Their Pythagorean record, per Baseball Savant, projected approximately 89 wins. That is a 13-win gap, the largest negative swing in Major League Baseball this season and the engine behind their league-worst Luck Index of -57.
Thirteen wins is not a rounding error. It is the difference between missing the playoffs and hosting a Wild Card series. Detroit's run differential supported a comfortably postseason-caliber team. The wins simply never materialized in the correct order.
The culprit, as usual, was close games. Detroit's record in one-run contests was catastrophic relative to expectation, a pattern that historically regresses hard. The Tigers were not an 86-loss team by any meaningful performance metric. They just played like one in the standings.
2. San Francisco Giants - MLB
San Francisco went 65-97. Pythagorean expectation said roughly 72 wins. A Luck Index of -55 makes the Giants the second-most cursed team on the planet.
Seven phantom losses do not transform a rebuilding roster into a contender, but they do transform a disappointing season into a misleading one. Front offices making offseason decisions based on that 97-loss record would be reading the wrong book.
The Giants' run differential told the story of a flawed but functional team. Their actual record told the story of a historically bad one. Those are meaningfully different narratives.
3. New York Mets - MLB
The Mets posted a 74-88 record against a Pythagorean projection of roughly 78 wins, producing a Luck Index of -50. In a sport where two or three wins routinely separate playoff teams from golf spectators, four extra losses sting.
New York's pitching staff, by most rate stats, performed well enough to anchor a .500-adjacent club. The bullpen's leverage-adjusted results, however, diverged sharply from its component numbers, a textbook indicator of sequencing variance rather than talent failure.
Four wins is a smaller gap than Detroit's or San Francisco's, but the Mets' payroll and expectations make the sting disproportionate.
4. Valencia CF - La Liga
Across the Atlantic, Valencia sit on 6 points from 9 La Liga matches (1W 3D 5L). According to FBref data, their expected points total based on xG performance is 10.3. A Luck Index of -32 makes them the unluckiest football club in Europe's top five leagues.
That 4.3-point gap through nine matchdays is the kind of deficit that, left uncorrected, means the difference between a relegation scrap and mid-table anonymity. Valencia's expected goals luck has been brutal: they are creating and conceding at rates that should produce nearly double their current win total.
Regression should arrive. Whether it arrives before the sacking cycle does is another question.
5. Borussia Mönchengladbach - Bundesliga
Gladbach have zero points from six Bundesliga matches. Their xPoints total sits at 5.2, per Understat. A Luck Index of -31 accompanies the only winless, drawless record on this list.
Zero from six is bleak by any standard, but the underlying model sees a team that should be sitting on a win and a couple of draws. Gladbach's actual goal difference has run well below what their shot quality and defensive positioning would predict.
Sometimes zero points means zero quality. Here, it mostly means zero luck.
The Common Thread
Across all five clubs, the shared villain is finishing variance, both for and against. These teams either failed to convert performance into goals and runs at expected rates, or they watched opponents do exactly that against them. In every case, the gap between process and outcome is unusually wide.
| Rank | Team | League | Luck Index | Actual | Expected |
|---|---|---|---|---|---|
| 1 | Detroit Tigers | MLB | -57 | 76W | ~89W |
| 2 | San Francisco Giants | MLB | -55 | 65W | ~72W |
| 3 | New York Mets | MLB | -50 | 74W | ~78W |
| 4 | Valencia CF | La Liga | -32 | 6 pts | 10.3 xPts |
| 5 | Borussia Mönchengladbach | Bundesliga | -31 | 0 pts | 5.2 xPts |
None of these teams are secretly great. But all of them are measurably less bad than their records suggest. In the MLB luck rankings, three of the bottom five are American League or National League clubs whose front offices now face an offseason of decisions built on distorted evidence. In European football, two clubs are staring at relegation-shaped holes that their underlying numbers do not fully justify.
Variance is not a narrative. It is a tax, and this week, these five are paying the highest rate.
