The Detroit Tigers outscored their opponents by 71 runs this season. They finished 11 games under .500.
That is not a typo, a rounding error, or a philosophical exercise. It is the defining statistical contradiction of MLB's 2024 season. Detroit's Pythagorean win percentage, the formula that converts run differential into expected wins, projected them for 87.2 victories. They won 74. The gap of negative-13.2 wins is the largest in baseball, and it is not particularly close.
The One-Run Wasteland
The quickest way to explain how a team with a plus-71 run differential plays like a sub-.500 club is to look at one-run games. The Tigers went 15-27 in contests decided by a single run. That is a .357 winning percentage in the tightest possible margins, a record so bleak it essentially functions as a black hole for expected value.
Baseball's conventional wisdom holds that one-run games are roughly 50-50 propositions over a full season. A team going 21-21 in those 42 games would have been perfectly average. Detroit going 15-27 instead cost them approximately six wins against that baseline alone. In extra innings, the pattern held: 5-9.
The Tigers did not lose these games because they were outmatched. They lost them because someone has to be on the wrong side of variance, and this year, Detroit absorbed nearly all of it.
The Statcast Verdict: This Team Was Fine
Here is where things get genuinely strange. The Tigers' underlying quality of contact, on both sides of the ball, was almost exactly what their results showed.
Detroit's batting posted a .321 wOBA against a .321 xwOBA. The delta is zero. Their expected batting average (.244) and expected slugging (.404) both aligned almost perfectly with actuals (.245 BA, .405 SLG). The offense was not secretly elite. It was not secretly terrible. It was a league-average-ish lineup that hit the ball about as well as Statcast thought it should.
The pitching staff carried a 3.80 ERA against a 3.99 xERA, a gap of negative-0.18 that suggests, if anything, the staff slightly outperformed its expected results. This was a legitimately good pitching operation. A team with a 3.80 ERA and a .321 wOBA offense should be competing for a playoff spot, not staring at 85 losses.
Honestly, They Were Not Great
A note of sobriety before anyone fits Detroit for a glass slipper. The Tigers' offense ranked in the bottom third of the league by most counting measures. Their 709 runs scored were not awful, but they were not the production of a contender. The run differential was inflated in part by the pitching staff's quality, not by a fearsome lineup.
The injury burden, ranked 14th in MLB, was moderate. Not punishing, not negligible. Detroit was not a 95-win team sabotaged by the injured list. They were, at their underlying best, something like an 87-win team. Solid. Respectable. Possibly a wild card competitor.
They were not that team. They were 74-85.
MLB Luck Rankings and the CURSD Index
CURSD's MLB luck index, which synthesizes Pythagorean differential, close-game records, and Statcast expected-versus-actual gaps, slotted the Tigers at negative-65 on a scale of roughly negative-100 to positive-100. That is the most cursed mark in baseball this season. No other team combined this level of underlying competence with this degree of win-column punishment.
The number captures something the standings alone cannot. Detroit did not collapse because of poor process. They collapsed because one-run games broke against them at a historically lopsided rate, converting a playoff-caliber run environment into a fourth-place finish.
What Regression Actually Looks Like
If the Tigers bring back a substantially similar roster and their one-run record reverts to anything near .500, the math is straightforward. A 21-21 record in those games instead of 15-27 adds six wins. Regression in extra-inning games adds another two or three. That alone puts Detroit around 82-83 wins, with the Pythagorean model suggesting the ceiling is closer to 87.
None of that is guaranteed. Regression is a tendency, not a promise. But a team that outscores its opponents by 71 runs and finishes with 85 losses has already absorbed the worst-case scenario. The only direction left, statistically, is up.