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Starting Pitcher · Arizona Diamondbacks

Merrill Kelly

RHP · Throws Right · Age 37Starter

ERA

5.37

FIP

–

129.0

W-L

8-11

WHIP

1.52

14.9

BB%

10.1

GB%

–

K/9

5.9

HR/9

1.8

Drafted by the Tampa Bay Rays in 2010 (round 8), he was signed by the Arizona Diamondbacks in free agency in December 2025. He made his MLB debut on April 1, 2019.Facts: MLB StatsAPI (people · transactions)

No scheduled start today. The model projection and lineup matchup appear on start days.

Changeup

CH · lead pitch

26% of pitches · .310 xwOBA allowed · 463 BIP · where it goes, what it costs

Pitcher Locations

where he throws it · catcher’s view

Rare 0% · Common 10% · Very common 20%+

xwOBA Allowed

damage done by zone · all batters

Cold .200 · Avg .310 · Hot .500+

Expected Damage

locations × damage zones

Low risk · Average · High-risk zone

Changeup (26% usage) has allowed .310 xwOBA over 463 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

6 pitch types · 5,986-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Changeup CH

26% usage · 30% whiff · .310 xwOBA · 88.5 mph

Four-Seam Fastball FF

25% usage · 16% whiff · .426 xwOBA · 92.1 mph

Cutter FC

17% usage · 13% whiff · .373 xwOBA · 91.1 mph

Sinker SI

12% usage · 7% whiff · .387 xwOBA · 92.2 mph

Curveball CU

11% usage · 18% whiff · .328 xwOBA · 82.5 mph

Slider SL

9% usage · 33% whiff · .280 xwOBA · 86.3 mph

Whiff% Trend

last 8 outings · by pitch · min 5 swings per point

ChangeupFour-Seam FastballCutter

Hand Splits

K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1

Split	K%	xwOBA	Sample
vs. LHB	15.4	.379	861
vs. RHB	22.2	.323	695

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Market lines

current pick’em lines by book · updates through the day

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DFS picks

today’s picks for this pitcher, probability-sorted · graded nightly

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