| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 10 | 6 | 0 | 0 | 147.0 | 125 | 42 | 136 | 58 | 3.55 | 1.136 | 44.1 |
| 2025 | 12 | 9 | 0 | 0 | 184.0 | 157 | 48 | 167 | 72 | 3.52 | 1.114 | 67.1 |
| 2024 | 5 | 1 | 0 | 0 | 73.7 | 67 | 19 | 63 | 33 | 4.03 | 1.167 | 19.0 |
| 2023 | 12 | 8 | 0 | 0 | 177.7 | 143 | 69 | 187 | 65 | 3.29 | 1.193 | 70.3 |
| Date | News |
| 12/15/25 | Source: Kelly to D-backs on 2-year, $40M deal. Merrill Kelly, after being dealt by the Diamondbacks to the Rangers at the trade deadline last season, is returning to Arizona on a two-year, $40 million deal, a source confirmed to ESPN. Source: https://www.espn.com/mlb/story/_/id/47302930/repor... |
| 12/15/25 | Source: Kelly to D-backs on 2-year, $40M deal. Merrill Kelly, after being dealt by the Diamondbacks to the Rangers at the trade deadline last season, is returning to Arizona on a two-year, $40 million deal, a source confirmed to ESPN. Source: https://www.espn.com/mlb/story/_/id/47302930/repor... |
| 12/14/25 | Veteran pitcher Merrill Kelly returns to Diamondbacks on a $40 million, 2-year deal, AP source says. Veteran starting pitcher Merrill Kelly has agreed to return to the Arizona Diamondbacks on a $40 million, two-year deal, according to a person familiar with the move. The person spoke to The Associated Press on condition of anonymity because the deal has not been announced and is pending a physical. The right-hander spent the first 6 1/2 years of his career with the Diamondbacks before the pending free agent was dealt to the Texas Rangers at this year’s trade deadline in July. He was good for both teams, finishing with a combined 12-9 record and 3.52 ERA. Kelly’s return to Arizona isn’t a huge surprise considering he’s a Scottsdale native and played in college at Arizona State. Source: https://www.chron.com/sports/article/veteran-pitch... |
| 12/14/25 | MLB rumors: Diamondbacks bring back Merrill Kelly, frontrunners emerge for top Cardinals trade target. Here are your hot stove rumors for Sunday, Dec. 14 Source: https://www.cbssports.com/mlb/news/mlb-rumors-diam... |
| 9/07/25 | Red Sox found the Diamondbacks' asking price for Zac Gallen to be too high. The Sox, like every contender, checked in with the Diamondbacks about righthanded starters and free-agents-to-be Merrill Kelly and Zac Gallen. Kelly ended up going to the Rangers in a strong three-prospect package. Gallen, meanwhile, ended up staying with the Diamondbacks, with teams hesitant to give up significant prospects after he struggled through the first four months of the season. “To be able to spend the last two months here, I was super stoked,” Gallen said. Source: https://www.bostonglobe.com/2025/09/07/sports/red-... |
See all news and stats for this player