FanGraphs Weekly Mailbag: August 22, 2026

As you all probably know, at the start of every season, the FanGraphs staff puts together our bold predictions for the coming year. Each is, to varying degrees, plausible but unlikely, which is what makes it such a fun exercise. Anyway, entering the 2025 season, my bold prediction was: Corbin Carroll will become the fifth-ever 20/20/20/20 player — 20 doubles, 20 triples, 20 home runs, and 20 stolen bases in a single season — joining Frank Schulte in 1911, Willie Mays in 1957, and Curtis Granderson and Jimmy Rollins, who both did it in 2007. Carroll ultimately fell just three triples short of the threshold, while tallying 32 doubles, 31 homers, and 32 steals.
I decided not to run it back this year, figuring that wouldn’t be as fun, though I am very much still rooting for it to happen. The 20/20/20/20 Club is one of the most exclusive baseball has to offer. Pulling it off requires a precise combination of power, speed and instincts, and it has to happen at the exact right moment in a player’s career. As I wrote in my bold prediction: “A player needs to have enough pop to hit 20 homers, but not so much that the majority of his extra-base hits land in the seats. He also needs the speed to steal bases and stretch singles into doubles and doubles into triples. His instincts must be sharp, so he can know when to attempt the extra base without running into outs.”
Last Saturday, when I saw that Carroll had doubled and tripled in a 10-3 Diamondbacks win over the Braves, I pulled up his player page to check on his progress. He was up to 26 doubles, 15 triples, 18 homers, and 16 steals. He stole a base the next day, and after going without an extra-base hit in Arizona’s three-game series against the Red Sox, Carroll entered play Friday at 26 doubles, 15 triples, 18 homers, and 17 steals with 34 games left to play. This prompted my own question for this week’s mailbag, which I will get to momentarily. We’ll also answer your questions on the worst player to ever hit three home runs in a game, the biggest drop-off for a player in the season after finishing second in the MVP voting, and teams missing the playoffs despite leading the league in run differential. But first, I’d like to remind you that this mailbag is exclusive to FanGraphs Members. If you aren’t yet a Member and would like to keep reading, you can sign up for a Membership here. It’s the best way to both experience the site and support our staff, and it comes with a bunch of other great benefits. Also, if you’d like to ask a question for an upcoming mailbag, send me an email at mailbag@fangraphs.com. Read the rest of this entry »





