DataBaseball
2026
Mickey Jannis headshot

Pitcher · 2021

Mickey Jannis

Age
34
B/T
R/R
Height
5' 9"
Weight
195 lb
Born
December 16, 1987 in Carson City, NV, USA
MLB debut
June 23, 2021
dbWAR
-.5
1 season(s)
IP
3.1
ERA
18.90
FIP
17.87
K/9
2.7
FIP−
419
100 = avg

Mickey Jannis is a relief pitcher for the Baltimore Orioles. In 2021 he struck out 1 batter over 3.1 innings across 1 appearance, going 0-0. His ERA of 18.90 was 343.0% higher than the league average of 4.27. Stripping out defence, his 17.87 FIP suggests he pitched better than his ERA shows. He missed bats on 0.0% of swings, walked 19.0% of the batters he faced and struck out 4.8%. His -0.5 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.

FIP17.87
K/92.7
WHIP3.60
WAR-.5

Pitching

Standard and advanced, by season.

Trend
2021103.1000871418.9017.873.602.710.8443419-0.5

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 LHB753121.600.7141.400.79514.3%
vs RHB14125220.417.5001.000.6020.0%

Pitch sequencing

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

ShowBatter
KnuckleballFour-seamKnuckle curve

Select a count to see exactly what Mickey Jannis throws in it.

Pitch arsenal

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

Knuckle Ball80.3%5777.940642.1%0.0%
Mickey Jannis'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 Mickey Jannis beside up to three others.

Compare — add up to 3 more players
Mickey Jannis
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.