FanGraphs Weekly Mailbag: June 13, 2026

On Wednesday night, I sent Michael Baumann a Slack message asking him the first question in today’s mailbag: How many teams have never had a 30/30 season? “Phew,” he said. “That’s a good one.” I told him I’d be answering it, but I thought it was a fun bit of trivia and wanted to know what his guess would be. I was on my way back from my softball game, and I told him I’d look it up as soon as I got home. But Baumann was impatient. He proceeded to run the search himself and answer the question for me.

“Thanks for doing the mailbag for me lol,” I said. He replied, “I had that thought. I just couldn’t help myself.” That’s the type of impulsive, obsessive behavior that drives us to answer your mailbag questions every week. Like you, we love all that is trivial, whimsical, historical, hypothetical, strategic, pedantic, gigantic, nitty, gritty, and silly about baseball. Your passion is our passion. Anyway, because Baumann couldn’t resist, part of the answer to the first question comes from his initial Stathead search. He told me to run my own search, just in case he missed something in his fervor.

We’ll get to the answer to that 30/30 question in a moment. We’ll also answer your questions on the teams with the greatest difference between cumulative player WAR generated and actual team wins, bases-loaded walks, and how to get your baseball fix when you’re short on time. 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.