A .500 Team Trapped in a Sub-.460 Body
The Washington Nationals have scored 697 runs and allowed 691. That is a plus-6 run differential, the kind of number that should produce a roughly .500 record over a full season. Instead, through 135 games, Washington is 62-73. Their Pythagorean win percentage sits at .504. Their actual win percentage is .459. That gap, stretched over a full 162-game schedule, represents approximately six wins that simply vanished.
The Tigers, cratering at a league-worst MLB luck index of -62, have monopolized the cursed-team conversation. The Nationals, at -44, have attracted almost none of it. That is the difference between a team whose misery is visible and one whose misery is quiet, chronic, and oddly well-hidden behind a mediocre roster that gives people permission to stop looking.
They should not stop looking.
The One-Run Graveyard
Washington is 13-19 in one-run games. That is a .406 winning percentage in contests decided by the thinnest possible margin, games where the difference between the two teams was functionally zero. Over a large enough sample, one-run records tend to regress toward .500. The Nationals are 135 games into the season. The sample is getting large. And still, every coin flip lands tails.
Their extra-innings record, 6-5, is nearly balanced, which makes the one-run futility even stranger. Washington is not collapsing in extras. They are losing these games in regulation, finding novel ways to surrender leads or fail to convert close deficits in the seventh, eighth, and ninth innings. The bullpen's sequencing, the lineup's timing, the managerial decisions at the margins - something in the late-inning ecosystem is broken, and the record reflects it.
The Statcast Verdict: Average Bats, Unlucky Arms
The batting side is clean. Washington's team wOBA is .323 against an expected wOBA of .323. That is a delta of exactly zero. Their expected batting average (.246) and actual batting average (.244) are negligibly different. Their expected slugging (.409) and actual slugging (.413) are similarly close. The Nationals' offense is hitting almost precisely as well as the quality of their contact says they should. No hidden upside, but no hidden curse either.
The pitching staff is another story. Washington's ERA is 5.12 against an xERA of 4.84, a gap of 0.27 runs per nine. That is not catastrophic in isolation, but across 135 games of innings, it compounds. The Nationals' pitchers are allowing harder sequencing outcomes than the raw contact quality warrants. Balls are finding gaps. Runners are scoring from second on singles that, by exit velocity and launch angle, should be outs roughly more often than they have been. The pitching staff is not good - a 4.84 xERA is below average by any standard - but it is measurably less bad than the results suggest.
Honestly, They Are Also Just Not Good
This is where intellectual honesty matters. A team with a plus-6 run differential through 135 games is not a secret contender. It is a mediocre team. The Nationals' xERA says their pitching is bad. Their offense, by Statcast expected metrics, is league-average at best. The injury burden, rated at 9 on CURSD's scale, is modest, meaning Washington cannot even claim the excuse of a gutted roster.
The curse is real, but it is layered on top of a team that was always going to hover around .500. The gap between 68 expected wins and 62 actual wins is meaningful. It is not, however, the gap between a playoff team and a rebuilder. It is the gap between anonymous and invisible.
What Regression Would Look Like
If the remaining 27 games played out at the Nationals' Pythagorean expectation of .504, Washington would finish around 76 wins. That is not a playoff team. It is a team that finishes fourth instead of fifth, a team whose young players get to play meaningful September baseball instead of audition-tape baseball.
More practically, regression would mean their one-run record drifting toward .500 over the final month. Even a 7-5 mark in close games down the stretch would recover two wins from the deficit. The pitching staff's ERA-to-xERA gap, if it closed, might save another run or two per week.
None of this changes Washington's trajectory. It changes the story people tell about the 2025 Nationals, from a team that was bad to a team that was ordinary and desperately unlucky about it.