2025 Stats
W-L
6-2
ERA
3.43
WHIP
0.99
K
72
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Before an early shoulder injury sidelined Kelly from mid-April to August, the right-hander was headed for a second consecutive impressive season, posting a 2.19 ERA over four starts. He had less success (4.96 ERA) following his return, but most of the damage was in August, and Kelly was back on form in September. Kelly finished with a greater HR/9 and struck out fewer batters in 2024, but when a pitcher misses four months, one should resist making judgments based on ratios/results and instead focus on the injury, which altered his pitch mix. Kelly threw more cutters and changeups than four-seamers for the first time in his career; however, he pitched well when healthy in April and September, putting him on a path for a normal winter of preparation. The Diamondbacks have confidence that the 36-year-old will return to his 2023 iteration (3.29 ERA, 9.5 K/9) and picked up his option. Read Past Outlooks
Rebounds with seven shutout innings
Kelly (6-2) earned the win Wednesday against Atlanta after giving up one hit and one walk in seven scoreless innings. He struck out eight.
ANALYSIS
After conceding eight runs over his previous two starts, Kelly bounced back in a big way Wednesday. The veteran right-hander submitted his seventh quality start of the year, and it was the sixth time in his last 11 appearances that he fired at least six frames while yielding two runs or fewer. Kelly sports a 2.55 ERA, 0.84 WHIP and 69:12 K:BB over 67 innings since April 8, and he's next projected to face a Mariners a club with a .654 OPS against right-handed pitching across 29 outings since May 1.
After conceding eight runs over his previous two starts, Kelly bounced back in a big way Wednesday. The veteran right-hander submitted his seventh quality start of the year, and it was the sixth time in his last 11 appearances that he fired at least six frames while yielding two runs or fewer. Kelly sports a 2.55 ERA, 0.84 WHIP and 69:12 K:BB over 67 innings since April 8, and he's next projected to face a Mariners a club with a .654 OPS against right-handed pitching across 29 outings since May 1.
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
2022
2021
2020
2019
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
91
Last 10 Games
93
Last 5 Games
101
How many pitches does Merrill Kelly generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Merrill Kelly generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-3%
BAA vs LHP
2025
-4%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .218 | 157 | 67 | 134 | 22 | |||
| Since 2023vs Right | .224 | 165 | 40 | 132 | 17 | |||
| 2025vs Left | .203 | 44 | 13 | 32 | 5 | |||
| 2025vs Right | .194 | 28 | 6 | 24 | 3 | |||
| 2024vs Left | .234 | 23 | 16 | 33 | 6 | |||
| 2024vs Right | .250 | 40 | 3 | 34 | 5 | |||
| 2023vs Left | .218 | 90 | 38 | 69 | 11 | |||
| 2023vs Right | .226 | 97 | 31 | 74 | 9 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-23%
ERA at Home
2025
-20%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 3.05 | 1.05 | 168.0 | 9.1 | 3.1 | ||||
| Since 2023Away | 3.95 | 1.24 | 159.1 | 8.6 | 2.8 | ||||
| 2025Home | 3.03 | 0.98 | 35.2 | 8.1 | 3.0 | ||||
| 2025Away | 3.79 | 0.99 | 40.1 | 8.9 | 1.6 | ||||
| 2024Home | 4.19 | 1.16 | 38.2 | 7.2 | 2.1 | ||||
| 2024Away | 3.86 | 1.17 | 35.0 | 8.2 | 2.6 | ||||
| 2023Home | 2.59 | 1.02 | 93.2 | 10.2 | 3.5 | ||||
| 2023Away | 4.07 | 1.38 | 84.0 | 8.7 | 3.5 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Merrill Kelly compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
3.79K/9
8.5BB/9
2.3HR/9
0.9Fastball
91.9 mphERA
3.43WHIP
0.99BABIP
.252GB/FB
1.38Left On Base
67.4%Exit Velocity
84.2 mphBarrels/BBE
6.1%Spin Rate
2311 rpmBalls Hit 95+ MPH
31.0%Swinging Strike
10.4%Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Merrill Kelly See More
Brace yourself for some subpar pitching outings over the next week while planning for those in more favorable situations.
Ryan Pohle dives into team stacks and pitchers for Wednesday's MLB slate, featuring San Diego's Nick Pivetta in a favorable matchup against the Giants.
It'll be important to select the right pitchers for the upcoming week with June promising increased offense.
Ryan Pohle takes a deeper look into team stacks and pitchers for Friday's MLB slate, including Toronto's Chris Bassitt in a home matchup against the Athletics.
Are fantasy baseball players any good at anticipating which pitchers will get hurt and which will remain healthy? Survey says...sort of?
Past Fantasy Outlooks
2024
2023
2022
2021
2020
2019
Kelly's ratios were nearly equivalent to his breakthrough 2022 season, but he took a different path to get there. Last season, Kelly fanned a career best 25.9 percent of batters he faced, but he also walked them at a 9.6 percent clip, the highest mark of his career. However, the 16.3 percent K-BB% was his best in a full season. Kelly didn't change his pitch mix much, other than throwing a slider a bit and it was effective. His changeup was offering chiefly driving the increase in strikeouts. Despite posting strong ratios in 2022, Kelly wasn't trusted since he didn't miss many bats. Fast forward a year and Kelly is no longer a secret after fanning well more than a batter an inning and enjoying a strong playoff run. He's likely going to be drafted around 100 picks earlier this season, which puts him in risky territory, since that assumes Kelly continues to punch out hitters at the same rate. Don't shy away from Kelly, but don't expect a repeat of last season's newfound dominance.
More Fantasy News
Early struggles in no-decision
Kelly allowed six runs (four earned) on six hits and two walks while striking out six over five innings in a no-decision versus the Nationals on Friday.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Fades late in no-decision
Kelly came away with a no-decision in Saturday's 6-5 loss to the Cardinals, giving up four runs on six hits and a walk over six-plus innings. He struck out six.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Dazzles in win
Kelly (5-2) picked up the win Sunday against Colorado, allowing one hit and three walks with 11 strikeouts over seven scoreless innings.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Strikes out eight in win
Kelly (4-2) allowed a run on eight hits and struck out eight without walking a batter over seven innings to earn the win over the Giants on Monday.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Solid in loss
Kelly (3-2) took the loss Wednesday against the Mets, allowing three runs on six hits over 6.1 innings. He struck out six.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Latest Fantasy Rumors
Could be dealt
According to Will Sammon and Patrick Mooney of The Athletic, Kelly could be a trade chip for the Diamondbacks this offseason.
ANALYSIS
Arizona is receiving trade interest in its starting pitchers, and Kelly is a logical option to be dealt since he's in the final year of his contract. The right-hander was limited to 13 starts in 2024 due to a shoulder injury and had a 4.03 ERA, 1.17 WHIP and 63:19 K:BB over 73.2 innings.
Arizona is receiving trade interest in its starting pitchers, and Kelly is a logical option to be dealt since he's in the final year of his contract. The right-hander was limited to 13 starts in 2024 due to a shoulder injury and had a 4.03 ERA, 1.17 WHIP and 63:19 K:BB over 73.2 innings.