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Angel Zerpa

2026
Brewers· LHP · throws L· 12.2 IP· 6.39 ERA· 1.74 WHIP· 55 batters faced

Grade

His grade shows how good he has been, and at what.
Fbetter than 27% of qualified pitchers at limiting bases
RelieverCommand Artist

Rarely walks anyone and lets the defense work.

Zerpa allows more bases than most pitchers

The simulator expects him to allow 0.468 bases per batter faced, better than 27% of qualified pitchers. His weakest skill is limiting hard contact (10th percentile). Short relief outings push strikeout rates up a little, so read his K% spoke with that in mind.

His grade rests on 55 batters faced, with data through 2026-09-27.

How to read this chart
Each spoke is a skill estimate adjusted for sample size, not a raw season stat, and farther out is better. A ↓ marks a stat where a lower number is better, and its spoke is flipped so farther out still means better. The middle ring marks the league median and the outer ring the league best. Percentiles compare him with 517 qualified pitchers, those with 100+ batters faced, starters and relievers together. He has not reached that bar himself, so he is measured against them rather than counted among them.

Plays like…

Each of these pitchers shares his archetype and sits closest to him in xEB/PA.

Chris MartinRangersTyler SchweitzerWhite SoxMitchell ParkerNationalsAaron CivaleCubs

Pitcher type

This map shows what kind of pitcher he is, next to the league.

Arsenal

These cards show what he throws and what each pitch does.

Angel Zerpa leans on his sinker (68% of pitches). No pitch has beaten league-average results yet, and the sinker has come closest, and his sinker runs 2.7 mph faster than the median left-handed pitcher's.

Pitch mix & swing-and-miss

+0 bases better than a replacement arm this season

He allowed about 28 estimated bases, against a replacement arm's 29 over the same batters faced.

Replacement level is per-batter and can't be split by pitch type, so the bars below use league average.

All pitches

He cost 0.8 bases against league average across 147 pitches, or 0.5 per 100 pitches.

Sinker
68%
95.6 mph · LHP median 92.9
19% whiffs · Lg median 13%
cost 0.6 per 1000.8 total
Slider
not charted
21%
87.1 mph · LHP median 85.6
—
—
Changeup
not charted
6%
90.3 mph · LHP median 85.1
—
—
Four-Seam Fastball
not charted
5%
95.4 mph · LHP median 93.5
—
—

Only his sinker is in the charts below, because the rest were tracked too rarely to plot.

How to read this chart
Each row is a pitch he throws at least 3% of the time, from pitch tracking in the regular season. The bar is how often he throws it, then its average velocity and its whiff rate, the share of swings that miss. Beside the velocity and the whiff rate is the median for that pitch, among pitchers of his hand for velocity and across the league for whiffs. More whiffs are better for a pitcher, while usage and velocity describe how he pitches. The Bases vs average bars score each pitch against a league-average pitch in the same count, and a bar to the left (saved) is better.

Mix by batter side

Compared with the league, his sinker tilts 21 points more toward righties.

Sinker
65% vs LHH · LHP median 38%
70% vs RHH · LHP median 22%
How to read this chart
Each row shows how often he throws a pitch to left-handed hitters (LHH) and right-handed hitters (RHH), next to the median for pitchers of his hand (LHP median). Medians come from the 111 left-handed pitchers who throw that pitch at least 3% of the time. A mix is a plan, so a higher or lower share is neither better nor worse. Overall results by batter side are under Platoon splits.

Angel Zerpa's pitch movement, 2026

Angel Zerpa's pitch movement, 2026121806in← glove sidearm side →more risemore drop
SinkerSI
Rise 2.3 in
−6.1 vs Lg median
Break 17.3 in
+2.1 vs Lg median
Vs. early season steady
Early season → nowLg medianNormal wobble around the dot
How to read this chart
Each dot is a pitch's current break in inches, averaged over his latest outings. Higher is more rise and further right is more arm-side break, and neither is better or worse. The faint trail runs from his early-season outings to the dot, and the soft halo shows how far normal noise can move it. League median is the small hollow ring, and a pitch marked * has none because too few pitchers throw it. The “changed” verdict removes a league-wide drift that the trail still shows, so a long trail can read as steady. The by-appearance chart below has the exact dates. More on the About page

By appearance

These charts follow his velocity, movement and mix from outing to outing.

These charts follow his velocity, movement and pitch mix one outing at a time, and each pitch keeps the same color in every chart. The velocity and movement charts also shade the middle of the league for scale. Only his sinker is in these charts, because the rest were tracked too rarely to plot.

Platoon splits

This section splits his results against lefties and righties.

Platoon splits (EB/PA allowed)

He handles lefty bats better than righty bats, by 0.039 EB/PA allowed.

50% probable range: +0.030 to +0.048

vs LHB21 PA0.469

vs LHB: shrunk estimate 0.469 EB/PA, 50% probable range 0.447 to 0.492, based on 21 plate appearances. Raw (unshrunk) rate: 0.241 EB/PA. League median vs LHB: 0.451 EB/PA.

His raw rate vs LHB (0.241) is off this scale. Small samples can push a raw rate this far, which is why the dot, the shrunk estimate, is the number to trust.

vs RHB35 PA0.508

vs RHB: shrunk estimate 0.508 EB/PA, 50% probable range 0.486 to 0.530, based on 35 plate appearances. Raw (unshrunk) rate: 0.672 EB/PA. League median vs RHB: 0.435 EB/PA.

His raw rate vs RHB (0.672) is off this scale. Small samples can push a raw rate this far, which is why the dot, the shrunk estimate, is the number to trust.

0.4240.4530.4830.5120.542
← betterworse →
Below league medianAbove50% probable rangeHis raw rateMiddle half of the league

His split is about typical for a lefty arm (median 0.038). He allows more than the league median against both sides.

How to read this chart
  • Each dot is his estimate against that side, with its 50% probable range as the bar. These are bases allowed, so lower is better.
  • The diamond is his raw rate, which small samples make noisy, so the simulator pulls the dot toward a more trustworthy value.
  • The dashed tick is the league median, and the shaded strip is the middle half of pitchers with 100 or more batters faced.
  • The two splits average back to his modeled overall EB/PA allowed, not the xEB/PA headline.
  • Tap or hover a mark for its number. LHB and RHB are left- and right-handed batters. More on the About page

Contact allowed

These cards show what hitters do when they make contact.

Batters go up the middle off him most often, but they do the most damage to the pull side.

Pull side and opposite field depend on which side each batter hits from, so this pools every hitter he faced.

Batted balls allowed

Every ball hit off Angel Zerpa this season is drawn where it landed.
hit · out
EBlowhigh
vs Jahmai JonesHome run
112 mph · 24° · worth 3.8 bases
04/23 vs Tigers
vs Willson ContrerasHome run
105 mph · 33° · worth 3.8 bases
04/06 vs Red Sox
vs Austin HaysDouble
112 mph · 11° · worth 1.5 bases
03/28 vs White Sox
vs Jacob YoungDouble
94 mph · 25° · worth 1.2 bases
04/10 vs Nationals
vs Brady HouseSingle
83 mph · 17° · worth 1.0 bases
04/12 vs Nationals

Luck check

How to read this chart
Dot color is estimated bases (EB), what the contact was worth no matter what the defense did with it. Darker means more bases, so a dark hollow ring in the outfield is a crushed ball his defense ran down. Tap or hover a dot or a row to link the two, and use the ▶ links to watch a play on Baseball Savant.

Best games

These are his biggest outings this season.

Best games

These are his best outings this season, ranked by bases saved against a replacement arm.

Multi-season trends · Angel Zerpa

Compared with last season, his HR allowed% is up, his BB% is up and his K% is down.

Actual rates show what happened on the field, season by season.