Amed Rosario Can’t Stop Running

I don’t know if you’ve heard, but here at FanGraphs we enjoy the occasional number. Even our logo has its own bar graph. Today our topic is competitive runs, a statistic that rarely gets the love and appreciation it deserves, due to the fact that it’s mostly made up. Competitive runs is a classification created for Statcast. In order to measure average sprint speed, you need a pool of plays when players will presumably be running their hardest:
Competitive runs are essentially just the sample size. When you go to Baseball Savant’s leaderboard, the players are always sorted from fastest to slowest. However, you can also sort by competitive runs, and I can never resist. All season long, one player was absolutely trouncing the field:
Player | Competitive Runs | Sprint Speed |
---|---|---|
Amed Rosario | 342 | 29.5 |
Brandon Nimmo | 282 | 28.7 |
Vladimir Guerrero Jr. | 279 | 26.6 |
Trea Turner | 276 | 30.3 |
Steven Kwan | 272 | 28.4 |
Amed Rosario is the grand champion of competitive runs. The difference between Rosario in first place and Brandon Nimmo in second place is the same as the difference between Nimmo and Jeff McNeil in 34th place. I’m sure Nimmo takes some solace in knowing that he’s the undisputed leader of the non-competitive run. Whether it’s a walk or a hit by pitch, the dude straight up loves scampering to first base for his own particular reasons:
Turning our attention back to Rosario: It’s not as if he’s just racking up competitive runs as a counting stat. He also leads the league on a rate basis, no matter which rate you choose:
Rank | Player | Per Plate Appearance | Rank | Player | Per Ball in Play | |
---|---|---|---|---|---|---|
1 | Amed Rosario | 51.0% | 1 | Amed Rosario | 64.5% | |
2 | Isiah Kiner-Falefa | 48.2% | 2 | Isiah Kiner-Falefa | 60.9% | |
3 | Starling Marte | 44.2% | 3 | Starling Marte | 60.4% | |
4 | Luis Rengifo | 43.4% | 4 | Brandon Nimmo | 60.0% | |
5 | Steven Kwan | 42.8% | 5 | Juan Soto | 59.6% |
I don’t know about you, but I think this is incredibly fun. Competitive runs is an incidental statistic. It’s just scaffolding for another stat, but there’s one person who plays baseball like competitive runs is his own personal pinball machine. The other reason I love it is that even though competitive runs exists only to serve a higher master, it’s still a descriptive stat in its own right. A player’s competitive runs total tells you plenty about the way they play the game. Read the rest of this entry »