2025 Stats
W-L
6-2
ERA
3.18
WHIP
0.99
K
79
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
Another scoreless start
Kelly allowed four hits and two walks while striking out seven over six scoreless innings in a no-decision versus the Mariners on Monday.
ANALYSIS
Kelly logged his third scoreless outing of the season, all of which have come in his last five starts. It hasn't been a stretch of consistency, as he allowed a total of 10 runs (eight earned) over 11 innings in the other two starts in that span. Kelly is still looking like one of the more reliable pitchers in the majors this year with a 3.18 ERA, 0.99 WHIP and 79:21 K:BB over 82 innings through 14 starts. The 36-year-old is penciled in for a weekend start at home versus the Padres.
Kelly logged his third scoreless outing of the season, all of which have come in his last five starts. It hasn't been a stretch of consistency, as he allowed a total of 10 runs (eight earned) over 11 innings in the other two starts in that span. Kelly is still looking like one of the more reliable pitchers in the majors this year with a 3.18 ERA, 0.99 WHIP and 79:21 K:BB over 82 innings through 14 starts. The 36-year-old is penciled in for a weekend start at home versus the Padres.
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
99
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
-4%
BAA vs LHP
2025
-1%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .216 | 161 | 69 | 136 | 22 | |||
| Since 2023vs Right | .225 | 168 | 40 | 134 | 17 | |||
| 2025vs Left | .199 | 48 | 15 | 34 | 5 | |||
| 2025vs Right | .198 | 31 | 6 | 26 | 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
-25%
ERA at Home
2025
-32%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 2.95 | 1.05 | 174.0 | 9.1 | 3.1 | ||||
| Since 2023Away | 3.95 | 1.24 | 159.1 | 8.6 | 2.8 | ||||
| 2025Home | 2.59 | 0.98 | 41.2 | 8.4 | 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
3.76K/9
8.7BB/9
2.3HR/9
0.9Fastball
91.9 mphERA
3.18WHIP
0.99BABIP
.255GB/FB
1.42Left On Base
70.2%Exit Velocity
84.4 mphBarrels/BBE
5.7%Spin Rate
2313 rpmBalls Hit 95+ MPH
30.8%Swinging Strike
10.6%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
Ryan Pohle dives into team stacks and pitchers for Monday's MLB slate, featuring Atlanta's Chris Sale in a favorable matchup against the Brewers.
Red-hot MLB betting expert Eric Timm looks at Monday's slate, offering up three picks, including the NL West showdown between the Dodgers and Padres.
Discover top MLB DFS picks for Monday's nine-game slate, including Chris Sale and Merrill Kelly. Get expert lineup recommendations for optimal results!
Brace yourself for some subpar outings from fantasy baseball pitchers 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.
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
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
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this 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.
Latest Fantasy Rumors
Could change teams soon
Kelly is one of the players the Diamondbacks might be open to trading this summer, Jim Bowden of The Athletic speculates.
ANALYSIS
The Diamondbacks will be without their ace, Corbin Burnes, for the rest of the 2025 season due to an elbow injury, and when factoring in their poor record and the fact that they play in the strongest division in the National League, their playoff chances are minimal. Thus, it makes sense to try to gauge the potential trade interest in their impending free agents, and there's no doubt that Kelly would be a solid addition to almost any contending rotation. Kelly owns a 3.18 ERA and a 0.99 WHIP across 14 starts in 2025.
The Diamondbacks will be without their ace, Corbin Burnes, for the rest of the 2025 season due to an elbow injury, and when factoring in their poor record and the fact that they play in the strongest division in the National League, their playoff chances are minimal. Thus, it makes sense to try to gauge the potential trade interest in their impending free agents, and there's no doubt that Kelly would be a solid addition to almost any contending rotation. Kelly owns a 3.18 ERA and a 0.99 WHIP across 14 starts in 2025.