Luis Perdomo Dislikes Thrillers

Back in the early part of the summer I wrote about Padres’ long-man Luis Perdomo. To call him a mop-up man is being generous. His average leverage index is 0.26, which is almost half of the next lowest-leveraged reliever. The Padres really don’t want him pitching in games in which the outcome is up in the air. It’s like Kevin Towers issued Bud Black a simple set of guidelines called the Perdomo Principles with the following instructions:

1. Only use when the score is +/- 5 runs.
2. Follow the first point religiously.

So I did what any person desperately wanting to label a player as the human white flag does and created graphs showing the margin of lead based on when Perdomo enters the game:


For those who prefer their data in words, here is a breakdown of Perdomo’s usage:

32 appearances
1 appearance when the Padres held the lead
2 appearances when the Padres were tied
29 appearances when the Padres were trailing
5 appearances when the Padres were trailing by less than five runs
15 appearances when the Padres were trailing by five or six runs
9 appearances when the Padres were trailing by seven or more runs

While serving as the anti-Heath Bell, Perdomo has shown some ability to strike batters out (21%), generate groundballs (50.6%), and give up home runs (19.6% of total fly balls). His 93-94 MPH fastball actually holds a plus run value despite being used more than half of the time meanwhile his other main pitch — a slider that sits in the high 80s — does not hold that same distinction.

The Padres can’t be blamed for limiting his exposure. Perdomo spent about a minute in Triple-A earlier this season but otherwise made the jump to the bigs straight from Double-A. It would seem protecting Perdomo’s confidence level is the only reason the Padres haven’t dropped him in more of their games, seeing as how the results matter little at this point.

We hoped you liked reading Luis Perdomo Dislikes Thrillers by R.J. Anderson!

Please support FanGraphs by becoming a member. We publish thousands of articles a year, host multiple podcasts, and have an ever growing database of baseball stats.

FanGraphs does not have a paywall. With your membership, we can continue to offer the content you've come to rely on and add to our unique baseball coverage.

Support FanGraphs

newest oldest most voted
Carson Cistulli

Saw Perdomo strike out Ryan Roberts two nights ago, right before that crazy play where Hundley saved the ball from going in the dugout. The second strike was a 90 mph slider just off the plate. Swinging strike from Roberts. Next pitch, Perdomo throws a 96 mph fastball in almost the exact same spot. Roberts takes. Finally, for the fourth pitch, Perdomo throws a slider almost identical to the previous one in terms of velocity, movement, and placement. Roberts (a) swings, (b) misses, and (c) loses his shit. I swear, dude got all crazy-eyed.