Arizona Diamondbacks

Merrill Kelly

#29 Active
SP Arizona Diamondbacks 6'2" · 210 lbs Bats: R · Throws: R Arizona State
Season W-L
9-14
Season ERA
5.00
Season WHIP
1.47
Season K
111
Season IP
156.2
Next Matchup @ COL Tue 3:10 PM ET · SP: Y. Flande

2026 Fantasy Baseball Player Profile

Merrill Kelly’s 2025 season was a successful return to durability and effectiveness, split between the Texas Rangers and the Arizona Diamondbacks. Pitching for two teams, he combined for a 12-9 record with a solid 3.52 ERA across 184.0 innings. Kelly proved his 2024 shoulder issues were behind him, making 32 starts and maintaining a 1.13 WHIP. His strikeout rate held steady at 22.3%, and he limited walks to just 6.4%, showcasing the command that has made him a reliable mid-rotation arm. He finished the season strong with Arizona after being traded mid-year, posting a 3.22 ERA in 22 starts for the D-backs.

Entering 2026, Kelly is back with the Diamondbacks on a newly signed 2-year, $40 million contract, solidifying his role in their rotation. Projections view him as a stable innings eater, forecasting an ERA around 3.94 and roughly 180 innings pitched. While he doesn't offer elite strikeout upside (projected for ~160 Ks), his ability to limit baserunners and go deep into games provides a high floor for fantasy managers. He should be drafted as a dependable SP3/4 who can help stabilize ratios and accumulate quality starts.

DFS Last 5

Game Log

2026 Regular Season
DATE OPPONENT DEC IP H R ER HR BB SO ERA WHIP PC RESULT
Sep 16 vs. Miami Marlins L 4.2 7 4 3 1 2 9 5.21 1.51 91 L 4-3
Sep 11 vs. Texas Rangers 4.1 2 1 1 0 3 3 5.19 1.50 80 W 1-9
Sep 4 @ Houston Astros L 6.0 7 3 3 1 0 4 5.29 1.51 94 L 1-3
Aug 29 @ San Francisco Giants W 7.0 2 0 0 0 4 7 5.33 1.52 100 W 7-1
Aug 24 vs. Chicago Cubs L 5.2 5 3 3 0 3 4 5.63 1.56 99 L 7-0
Aug 18 @ Boston Red Sox L 4.0 7 6 6 1 4 2 5.68 1.57 86 L 4-9
Aug 12 vs. Colorado Rockies L 5.0 6 6 6 2 3 2 5.40 1.53 71 L 6-4
Aug 7 vs. Los Angeles Dodgers 5.2 2 1 1 0 4 4 5.15 1.51 80 W 3-4
Aug 2 @ Cleveland Guardians L 5.0 8 5 5 1 4 5 5.35 1.54 96 L 0-5
Jul 27 @ Pittsburgh Pirates 0.0 0 0 0 0 0 0 5.16 1.49 2 L 2-3
Jul 17 vs. St. Louis Cardinals 4.0 3 2 0 0 2 3 5.16 1.49 69 L 5-4
Jul 9 @ San Diego Padres W 7.0 3 1 1 1 3 6 5.38 1.51 94 W 3-1
Jul 4 vs. Milwaukee Brewers W 5.0 8 2 2 1 2 6 5.71 1.56 92 W 3-4
Jun 28 @ Tampa Bay Rays L 6.0 8 5 5 3 2 3 5.84 1.53 93 L 1-5
Jun 22 @ St. Louis Cardinals L 6.0 7 3 3 0 3 2 5.71 1.52 96 L 2-3
Jun 16 vs. Los Angeles Angels L 5.1 11 6 6 2 1 4 5.81 1.51 88 L 7-0
Jun 11 @ Miami Marlins L 6.0 4 2 2 0 2 1 5.46 1.45 74 L 0-2
Jun 5 vs. Washington Nationals L 5.0 6 7 7 3 3 4 5.71 1.49 85 L 14-1
May 31 @ Seattle Mariners 5.1 8 2 2 2 2 2 5.06 1.46 97 L 2-3
May 25 @ San Francisco Giants W 7.0 4 2 2 0 2 4 5.25 1.42 96 W 6-2
May 20 vs. San Francisco Giants W 6.0 8 3 3 1 0 4 5.71 1.51 85 W 3-6
May 15 @ Colorado Rockies W 9.0 4 1 1 1 0 3 5.91 1.54 100 W 9-1
May 9 vs. New York Mets W 7.0 3 1 1 0 3 6 7.62 1.92 96 W 1-2
May 3 @ Chicago Cubs L 4.1 8 6 6 1 3 5 9.95 2.32 92 L 4-8
Apr 28 @ Milwaukee Brewers L 5.0 6 5 5 1 5 1 9.20 2.25 104 L 2-13
Apr 21 vs. Chicago White Sox L 4.1 10 8 8 3 3 5 9.31 2.28 101 L 11-5
Apr 14 @ Baltimore Orioles W 5.1 5 2 2 1 4 3 3.38 1.69 86 W 4-3
Total8-14145.0152878426671025.211.512,347

AVG, OBP, SLG, ERA and WHIP are season-to-date through each game, not that game alone — so the column reads as a trend and its last value is the season figure. They stay season-to-date when the log is filtered by opponent; the figure for the filtered games is the one in the Total row. The second game of a doubleheader is marked (2).

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