DataBaseball
2026
Luis Frías headshot

Pitcher · 2024

Luis Frías

Age
26
B/T
R/R
Height
6' 3"
Weight
245 lb
Number
#64
Born
May 23, 1998 in Rio San Juan, Dominican Republic
MLB debut
September 19, 2021
Salary, 2024
$748,300
dbWAR
-.1
1 season(s)
IP
9.2
ERA
13.97
FIP
5.55
K/9
11.2
FIP−
136
100 = avg

Luis Frías is a relief pitcher for the Arizona Diamondbacks. In 2024 he struck out 12 batters over 9.2 innings across 11 appearances, going 0-1. His ERA of 13.97 was 242.4% higher than the league average of 4.08. Stripping out defence, his 5.55 FIP suggests he pitched better than his ERA shows. He missed bats on 25.2% of swings (11.8% of every pitch he threw), walked 13.2% of the batters he faced and struck out 22.6%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2024.

FIP5.55
K/911.2
WHIP2.69
WAR-.1

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2024. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB211710233.588.6191.235.71814.3%
vs RHB32289049.321.406.357.35028.1%

Pitch sequencing

What Luis Frías throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
CutterFour-seamSliderSinker

Select a count to see exactly what Luis Frías throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2024.

Cutter46.3%10689.82,24145.3%32.7%
Four-Seam Fastball27.5%6395.82,22649.2%30.4%
Slider15.7%3683.62,37841.7%15.8%
Sinker10.5%2496.22,18845.8%6.3%
Luis Frías's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Pitching

Standard and advanced, by season.

Trend
20241109.2010191512713.975.552.6911.26.5342136-0.1

Head to head

Put Luis Frías beside up to three others.

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Luis Frías
How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.