DataBaseball
2026
Rafael Dolis headshot

Pitcher · 2021

Rafael Dolis

Age
33
B/T
R/R
Height
6' 4"
Weight
235 lb
Born
January 10, 1988 in La Romana, Dominican Republic
MLB debut
September 26, 2011
dbWAR
.6
2 season(s)
IP
32.0
ERA
5.63
FIP
4.36
K/9
11.0
FIP−
102
100 = avg

Rafael Dolis is a relief pitcher for the Toronto Blue Jays. In 2021 he struck out 39 batters over 32.0 innings across 39 appearances, going 2-3. His ERA of 5.63 was 31.9% higher than the league average of 4.27 — the second worst on his team, and 459th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 4.36 FIP suggests he pitched better than his ERA shows. He missed bats on 28.5% of swings (11.6% of every pitch he threw), walked 17.3% of the batters he faced and struck out 25.0%. 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, 2021.

FIP4.36
K/911.0
WHIP1.75
WAR.1

Pitching

Standard and advanced, by season.

Trend
202139032.0233292039275.634.361.7511.07.61321020.1
202024024.022516431141.503.021.2511.65.334680.5

Platoon splits

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

Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB59471001119.213.373.319.31432.2%
vs RHB97781921620.244.381.372.34520.6%

Pitch sequencing

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

ShowBatter
SinkerSliderSplitter

Select a count to see exactly what Rafael Dolis throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2021.

Sinker64.8%39094.82,27743.8%16.2%
Slider23.1%13986.42,44446.8%47.5%
Splitter12.0%7286.81,29443.1%53.1%
Rafael Dolis'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.

Head to head

Put Rafael Dolis beside up to three others.

Compare — add up to 3 more players
Rafael Dolis

Similar players

Nearest 2021 seasons by command, run prevention and role, on rate statistics rather than totals.

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.