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MLB Deserve-to-Win
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John Klein

2026
Blue Jays· RHP · throws R· 8.1 IP· 2.16 ERA· 1.32 WHIP· 35 batters faced

Grade

His grade shows how good he has been, and at what.

Too few batters faced to grade

John Klein has faced 35 batters this season. A rate built on that few can swing a long way on a single result, so his rates get no grade and no league percentile yet.

A grade needs 40 batters faced. League medians and percentiles come from pitchers with at least 100 batters faced. The sections below show what actually happened, with no grade attached.

Arsenal

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

Pitch mix & swing-and-miss

Four-Seam Fastball
46%
94.8 mph
16% whiffs
cost 4.6 per 1003.1 total
Changeup
not charted
27%
86.6 mph
—
—
Curveball
not charted
11%
80.4 mph
—
—
Cutter
not charted
10%
86.6 mph
—
—
Sweeper
not charted
7%
82.3 mph
—
—

Only his four-seam fastball 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. 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

Four-Seam Fastball
45% vs LHH
47% vs RHH
How to read this chart
Each row shows how often he throws a pitch to left-handed hitters (LHH) and right-handed hitters (RHH). A mix is a plan, so a higher or lower share is neither better nor worse.

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 four-seam fastball is in these charts, because the rest were tracked too rarely to plot.

Contact allowed

These cards show what hitters do when they make contact.

Batters go to the pull side off him most often, and that's also where they do the most damage.

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 John Klein this season is drawn where it landed.
hit · out
EBlowhigh
vs Keibert RuizHome run
98 mph · 31° · worth 3.7 bases
05/07 vs Nationals
vs Bryan ReynoldsOutLucky out
104 mph · 22° · worth 3.0 bases
05/30 vs Pirates
vs Tyler StephensonOutLucky out
103 mph · 25° · worth 2.3 bases
09/26 vs Reds
vs James WoodDouble
100 mph · 20° · worth 1.9 bases
05/07 vs Nationals
vs Sal StewartSingle
107 mph · 15° · worth 1.5 bases
09/26 vs Reds

Luck check

2 outs behind him came on balls the simulator values at 1.5 bases or more.

vs Bryan ReynoldsOutLucky out
104 mph · 22° · worth 3.0 bases
05/30 vs Pirates
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.