More on Hitting Homers in an Inning

The three homers in the 6th inning last night, Stamton’s request for a reasonably obscure statistic, and the return to 2023-level home run prowess for at least a couple of weeks made me want to explore the issue a little further than anyone should want to explore it. So here’s what I did: I counted home runs by half inning for the whole Retrosheet era and compiled W/L percentages for each inning and number of homers. No inning has ever had more than 5 homers hit, so here is the complete table.

Not hitting a homer in a particular inning is a reasonably neutral sign. It lowers your winning percentage by a little over percent and it doesn’t really matter what inning it is. the 9th inning is the exception here, and that is lowered simply because none of those innings are by home teams leading.

Every homer you hit in an half inning increases your probability of winning. and again it doesn’t matter very much what inning you do it in. Last night’s effort appears in this table as 210 games and 83.3 percent. The 6th and 7th innings are the worst innings to hit home runs, but ti doesn’t matter all that much. Note that these percentages are all independent of one another. Obviously if you hit 3 homers in the 6th AND a homer in the third, your probabilities will be higher than either one separately. And I think I’ve produced the aggregate home run table before.

GamesWinsPercent Wins
Homers for the Entire Game
0201,12578,78939.2
1127,52268,19153.5
255,88936,90666.0
319,51614,75675.6
45,7224,78283.6
51,4931,33289.2
637334392.0
7969093.8
83232100.0
933100.0
1011100.0

The lesson here is pretty simple: hit eight or more homers.

The Game

In personnel news, the Braves were without Michael Harris II, who made the tactical error of impregnating his wife last July so that the birth occurred during the season. Timing, Michael, timing. He is replaced for the next few days on the roster by Luke Williams, and in center field by Mauricio Dubón.

Martín Peréz made his second start of the season, and with Spencer Strider nearing competence, it may have been one of his last. he gave up a solo homer in the first to José Ramirez. While we’re on names, he is not merely the namesake of the 70’s Braves shortstop, he is also, with some orthographic license, via Poland, the former Publisher/Editor-In-Chief of The New Republic. So he’s probably the best post-game interview if you have questions on public policy.

His nickname, according to BRef, is El de las Matas, which apparently means Bush Leaguer. Seems to me that’s the sort of nickname you wouldn’t really want to stick. I know I’ve tried to shed a few nicknames from high school that I won’t dignify with a mention here. Further, it doesn’t seem particularly apt, since he’s been in the majors for 15 years and, in that time, has only three years with negative WAR.

That first inning homer was all he gave up through five innings of work. There was a lot of sturm und drang over the identity of the fourth and fifth starters in the early part of the season. I am willing to bet José Suarez will not get another start. Leaving him aside, the only starter on the Braves staff with an ERA over 3.25 is some guy Sale. Send him to Gwinnett.

Joel Payamps entered in the sixth, and exited one out later with men on second and third for Aaron Bummer, last night’s fireman-hero. He walked his first batter, and gave up the second run of the game on a slow roller by Rhys Hoskins. He then loaded the bases again and faced Austin Hedges, who grounded out on a 3-2 pitch to keep the game in reach. In an excellent bullpen, only Payamps and José Suarez have been disappointing. That’s a pretty good yield.

The Guardians scratched for one more in the eighth off Osvaldo Bido to make it 3-0. The 9th was worse. A Little League play led to another run (suffice it to say that Steven Kwan scored from first on a wild pitch). Some more sloppy defense led to another couple of runs and all the Braves needed was a six-run bottom of the 9th to tie it up.

Those of you keeping track will realize that means the Braves had not scored up to that point. The offense hibernated against Parker Messick. one of only six first-named Parkers in MLB history. By contrast, there have been 25 last-named Parkers, one of them in the Hall of Fame. If Messick continues to pitch like this for rest of his career, he will join the late Cobra. 6 2/3 scoreless, with the only serious threat a two-out triple from RAJ in the 5th.

Matt Olson led off the 9th with a double and hope. Austin Riley walked to begin to pique Stephen Vogt‘s interest. After just missing a homer, Dubon struck out, as did Yaz. Heim popped out and the shutout was complete.

Rubber game tomorrow night. Bibee against Sale. Neither team has lost a series this season.