Let’s begin with a riddle: Staff A and Staff B have each performed 98 video games this season. Because of the vagaries of additional innings and unplayed bottoms of ninths, Staff A’s pitchers have thrown 4 extra innings than Staff B’s pitchers. Nevertheless, Staff B’s pitchers have confronted 259 extra batters than Staff A. How is that this doable?
OK, yeah, so this was really a reasonably simple riddle. The reply is that Staff B’s pitchers stink, whereas Staff A’s pitchers are superb. Staff A will get the next share of batters out, which signifies that it faces fewer batters per inning. Let’s put some names and numbers to our hypothetical, lets? Enable me to introduce you to the Mariners and the White Sox.
Staff A and Staff B
Stat | Mariners | White Sox |
---|---|---|
G | 98 | 98 |
IP | 866 | 862 |
FIP | 3.70 | 4.45 |
BB% | 6.7 | 9.8 |
OBP | .274 | .322 |
OAA | -2 | -26 |
TBF | 3,492 | 3,751 |
Pitches | 13,424 | 14,870 |
The Mariners have higher pitchers and a greater protection behind them. Consequently, the White Sox have allowed a whopping 130 extra runs. However check out the final row of that desk. The White Sox have thrown probably the most pitches in baseball, whereas the Mariners have thrown the second fewest. Having good pitching and good protection has allowed them to throw 1,477 fewer pitches than the South Siders. The common crew throws 146 pitches per sport, so we’re speaking about 10 complete video games’ value of pitches. Ten video games! That could be a enormous quantity, and these groups nonetheless have 64 video games left to go.
There are virtuous and cruel cycles goosing these numbers. When you’re the Mariners and Logan Gilbert is mowing down the opposite crew, he’ll be capable to go six or seven innings, which signifies that you’ll solely want to herald your high two bullpen arms to shut out the sport. Since they’re nice too, they’re additionally prone to throw fewer pitches. That leaves your bullpen higher rested, which improves its possibilities of pitching higher sooner or later, which once more means fewer pitches per inning. For a foul crew, the alternative occurs. Your starter struggles and solely makes it 4 innings, so it’s important to go a lot deeper into your bullpen and use your worst arms extra typically, all of which implies throwing extra pitches. When your starter struggles once more tomorrow, your relievers are drained, which makes them pitch worse, which implies extra pitches — and possibly much more accidents, so it’s important to carry someone even worse up from Triple-A — and the cycle continues.
No matter how you find yourself there, these variations are so giant that I’m genuinely having hassle wrapping my head round them. Right here’s what a full season seems like. In 2023, the A’s threw 25,303 pitches. That was almost 10 video games’ value of pitches greater than the typical crew, and almost 17 greater than the Rays, who threw the fewest pitches. I often attempt to do extra evaluation in my articles than throwing up my fingers and saying, “Holy cow, what an enormous quantity!” However on this case, I feel that’s really the proper takeaway. These numbers are huge. The common season is a slog and a battle of attrition for each pitching employees, however the worse you’re, the better the slog. I do know that groups typically take into consideration maximizing this impact over the course of a sequence: Make them throw a number of pitches within the first sport in order that they’ve to herald their worst relievers within the second and third video games. However now we’re speaking about an entire season. I’m undecided how one can analyze it simply but, however this can be a enormous impact that I simply plain haven’t heard anybody discuss earlier than.
As you’ve most likely realized by now, this sample works in reverse on the subject of batting. Groups that get on base extra and keep away from working into outs on the bases earn extra plate appearances per inning. The Dodgers are main baseball in PAs proper now. Final 12 months, that they had 367 extra plate appearances — 70% of the best way to a professional participant season — than the A’s. Having extra PAs to go round additionally signifies that your batters are seeing extra pitches. Relying in your taking part in time philosophy, it’d imply that your backups get to hit extra typically, which could maintain them sharper and provides your starters extra relaxation, which might as soon as once more assist your crew hit higher total.
Right here’s a enjoyable thought experiment: In 2022, the Yankees had 103.6 extra plate appearances than the MLB common. What if Aaron Choose had been on the A’s, who made 205.4 fewer PAs than the typical? Clearly, having Choose would have made the A’s higher, probably incomes them a bunch extra PAs, however even factoring that in, it might have simply price him upward of 25 PAs. May which were sufficient to maintain him from breaking the AL residence run document?
As you’ll be able to most likely inform, I haven’t actually made up my thoughts about how to consider this impact. I began pulling the numbers with none thought how massive the impact could be, and proper now I’m fairly shocked, so I’m going to cease right here and provides myself a while to consider what it means. Nevertheless, earlier than I’m going, I wish to go away you with one remaining query.
Within the first paragraph of this text, I discussed that we would have liked to account for further innings. I additionally talked about that we would have liked to account for video games that finish after the highest of the ninth as a result of the house crew is forward. That’s fairly a mouthful, and as I used to be writing that sentence, I noticed that there’s no time period for a sport that ends that approach, however there actually ought to be. My greatest suggestion to date is a Bottomless Ninth. Once I put the query to my colleagues, Leo Morgenstern caught with the bottomless theme, suggesting that we name it a Winnie the Pooh. (Jon Becker chimed in with the Donald Duck. Why are so many animals carrying shirts with out pants?) Readers of FanGraphs, the time has come so that you can contribute your sensible concepts. What ought to we name a ninth inning that solely has a high half? Please provide your options within the feedback or on social media. Collectively we are able to repair this gaping gap within the baseball lexicon.