Photo by Reunion, CC BY 4.0, via Wikimedia CommonsOctober Has Two Off Days
I wrote yesterday that October asks a club who its best three starters are. The published 2026 calendar says the number is four, and Atlanta are carrying six arms with 17 games left to sort them.
Yesterday, in this space, I wrote this: "October is mostly off days, and a schedule full of off days does not ask a club to fill a sixth turn — it asks who the best three are, and Atlanta have not had to wonder about that one all season."
The mechanism was right. The number was wrong, and it had been wrong for a month before I typed it.
Major League Baseball published the 2026 postseason calendar on August 10. The National League Division Series runs October 3, 4, 6, 7 and 9. Two off days sit inside that stretch, the 5th and the 8th, and that is all of them.
Put a three-man rotation on those dates and watch where it breaks. Games on the 3rd, the 4th and the 6th, and then Game 4 on the 7th — which the Game 1 starter would have to take on three days' rest. Four starters fit the same grid on normal rest, with Game 1's man back for a Game 5 on the 9th. The League Championship Series, October 11 through 19, is built the same way.
Four, then. Not three. The arithmetic is in the dates.
The correction has an awkward consequence, because Atlanta are carrying six starters: Chris Sale, Tyler Mahle, Grant Holmes, Martin Perez, AJ Smith-Shawver, and Reynaldo Lopez, who takes the ball at Truist Park tonight for the first time in the major leagues since July 26. Tuesday evening at Truist Park ended Tampa Bay 7, Atlanta 1, and that game belongs to September.
Bryce Elder had arthroscopic surgery on his right knee on Tuesday, bone fragments removed, reported as the source of discomfort he had carried since the All-Star break. Manager Walt Weiss gave the timeline: three to four weeks.
The version going around is that Atlanta just lost a starter. They did not. Elder's last competitive pitch was August 31, and the arrangement reported before the surgery did not include him. They lost him nine days ago and have already built around it.
What Tuesday did was take a name out of a pool. Three weeks from September 8 is September 29, which is Wild Card Game 1. Four weeks is October 6, which is Game 3 of a Division Series. The window does not sit after the season; it sits on top of the first two rounds, and by October 6 he would be 36 days from a competitive pitch. Weiss is reported as optimistic. Optimism is not a schedule.
Which of those dates applies depends on a seed. The top two in each league skip the Wild Card round, and Atlanta are third, 3.0 games behind Los Angeles with the same games played — a race I argued on Sunday and will not argue again. It settles one thing today: whether Atlanta's October opens September 29 in a best-of-three, which needs two starters and stretches to three, or October 3 in a round that needs four.
Meanwhile September is sorting the pool, and it is not sorting on ERA. A round with no spare days asks a starter for length. Quality starts — six innings, three earned runs or fewer, counted by hand out of the game logs, since no feed publishes the number — sort the group like this. Sale: 18 in 25 starts. Elder: 15 in 26, second on the staff. Holmes: 9 in 27. Mahle: 5 in the six he has made since arriving from San Francisco. Perez: 4 in 23. Smith-Shawver: 0 in 5.
Perez is the one worth sitting with. A 3.25 ERA and four quality starts in 23 starts are both true, and they describe different skills. October only buys the second.
There are 17 games left, and 17 divided six ways is 2.83: five arms get three more turns, one gets two, and then it is over. Only three Atlanta probables have been published — Lopez tonight, Perez Thursday, Sale Friday — so anything past September 11 is a model, not a schedule, and the club has already reshuffled once. With off days on the 17th and the 21st, Sale's turns come out September 11, 18 and 25. Three. A fourth exists only if Atlanta abandon the six-man.
So the squeeze is not really Elder's knee. It is six arms, 17 games and four jobs, and two of those arms are spending September innings on a rotation spot that will not exist in three weeks. Atlanta have not said how they intend to align October.
Baseball has a long memory about the rest of it. The 2023 club won 104 games, earned the bye, and lost the Division Series in four anyway. Every advantage a schedule can hand a team still has to be spent one start at a time, and this year it wants four of them.
The Tilt
Two of Atlanta's six starters have no October job, and September is picking them.
— Ellis Magnolia
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