After the Washington Nationals beat the New York Mets 23-5 on Sunday, my brain kicked into full stats nerd high gear. The game seemed to be approaching or breaking a handful of records including an individual achievement: Anthony Rendon going 6-6 with 3 HRs and 10 RBIs. As a fan of baseball and someone who watches an unhealthy amount, I know a team scoring 20+ points is rare, but how rare is it? Thanks to baseball-reference.com, I dug into the numbers a bit more and was surprised to see the results.
Since 1913, a team has scored more than 20 runs in a regular season game 213 times. That may seem like a lot of times, it did to me initially, but context is critically important. In a given year, there are 4,860 chances for an MLB team to score more than 20 runs. If you back that out a bit, since the MLB expanded to 30 teams in 1998, that’s 92,340 opportunities for a team to score 20+ runs (not including 2017). Just for fun, I went back to 1913, factoring in all MLB expansions and the changes in number of games per year and figured out there were approximately 350,000 opportunities for a team to score 20+ runs, making the odds to accomplish such a feat just 0.061%. The rarity of the feat is fascinating, but gets even better.
In a pitcher-dominated era of baseball, we are seeing 20+ run games happen even less frequently than before. There have been just 10 instances since the start of the 2012 season, which works out to a 0.041% chance of seeing it happen over the last 5 years. Even more rare is the 23+ run output like we saw yesterday. Since 1913, there have been 47 such occurrences, which boils out to a 0.013% chance of it happening on a given day. Since 2007, we have seen only 2 instances of a 23+ run output, yesterday’s Nationals score and a 30-run effort by the Texas Rangers in 2007 (most ever). The results over that span shrink the odds of it happening to a minuscule 0.0041% chance. If you have tickets to an MLB game next week and are hoping for 20+ runs, I wouldn’t get your hopes up.
For those who couldn’t follow the numbers, know this: What happened in yesterday’s Nationals game is exceedingly rare and is growing even more rare over time. Will we see another 20+ outing this season? The odds are against it, but you never know with baseball.