Why MLB’s end to the Game 163 makes the 2026 AL races a season‑long tiebreaker
With five days left in the regular season the American League’s tightest races show exactly what MLB’s removal of tiebreaker games means: head‑to‑head results and small margins from earlier in the year are…
By SLAM Intel Desk · 4 min read · Updated Sep 23, 2026, 3:02 PM EDT
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Lede: The small margins that now decide October
With five days left in the regular season, several American League playoff berths are unresolved — and MLB’s choice to eliminate one‑game tiebreakers has turned season‑long micro‑moments into potentially decisive advantages. Head‑to‑head wins and a few late‑season intraleague stretches are no longer tiebreaker fodder; they are the tiebreaker.
That dynamic is visible in the AL: Cleveland and Chicago are separated by a single game, Houston and Texas are level below .500, and the Yankees and Red Sox are already locked into postseason berths. Under the new rules, earlier wins in those head‑to‑head series can act like an extra tally that prevents a rival from advancing.
No Game 163: exactly how ties are settled now
Major League Baseball dispensed with one‑game tiebreakers. To break ties now the league applies a fixed order of mathematical criteria, starting with head‑to‑head record, then intradivision record, then interdivision record, and — if necessary — records over the final intraleague games until the tie is resolved. That means the team that won the regular‑season season series effectively has a built‑in advantage if records finish even.
For fans used to the drama of a winner‑take‑all Game 163, the stakes remain the same, but the path to resolution is distributed across earlier outcomes rather than concentrated in a single sudden‑death matchup.
Why the AL Central and West are the best examples
The AL Central comes down to the Guardians (82‑75) and White Sox (81‑76). Chicago holds the season‑series edge, which would act as the tiebreaker if both teams finish level. In practical terms, at‑bat‑level runs and two or three games swung in August or July may now determine who wins the division.
The AL West is similarly susceptible to past results. The Astros and Rangers sit level at 78‑79; Houston dominated the season series and therefore holds the inside track to the division if they finish tied. That isn’t theoretical: with both clubs under .500 today, a razor‑thin run of results in the final days could produce exactly the tie the season‑series ruling would decide.
What to watch in the final days
Pay attention to matchups that directly pit division rivals or potential tiebreak opponents against one another — those games have an outsized effect now. Weather and postponed games could also shuffle schedules and change which intraleague records are most relevant.
If you want a single thing to follow: head‑to‑head outcomes that were played earlier in the season. They’re the difference between a team finishing tied and advancing, or finishing tied and going home.
SLAM Explains
The complicated part, made simple.
No Game 163: How MLB now breaks ties
MLB stopped staging one‑game tiebreakers. Ties are resolved by a checklist: 1) head‑to‑head record, 2) intradivision record, 3) interdivision record, then records over the final intraleague games moving forward until the tie is broken.
Why it matters here
That sequence means that season‑series results and short stretches late in the season can act as a decisive 'extra game'—teams that won the season series against a rival are advantaged without needing a winner‑take‑all game.
Sources and attribution
- MLBPublished Sep 23, 2026, 1:38 PM EDT
Reporting attributed to MLB.
- CBS SportsPublished Sep 22, 2026, 10:06 AM EDT
Reporting attributed to CBS Sports.
- Yahoo SportsPublished Sep 23, 2026, 12:58 AM EDT
Reporting attributed to Yahoo Sports.
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