2025 Stats
W-L
0-0
ERA
21.60
WHIP
3.60
K
3
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Nelson's improved strike-throwing ability in spring training earned him a spot in the Diamondbacks' rotation in 2024. He maintained that skill into the regular season and finished with 10 wins and the second-most innings among Arizona starters. The 26-year-old right-hander upped his strikeout rate to 20.0 percent (from 15.5 in 2023), moving from the sixth percentile to the 26th. An already good walk rate got better, while he shaved one run off his ERA (5.31 to 4.24) and cut down on home runs. In a promising sign, Nelson's performance improved deeper into the season, posting a 3.23 ERA and 28.7 K% over the second half. Still very much a two-pitch pitcher (fastballs and cutters), developing a third pitch might continue the righty's upward trajectory. There was enough development in his performance last year that he should not need to compete for a rotation spot in 2025, but Arizona signed free agent Corbin Burnes, which could push Nelson to the bullpen. Read Past Outlooks
Long arm in bullpen
Nelson will remain stretched out as a reliever, Alex Weiner of Arizona Sports reports. "(Nelson) is going to be able to provide us some length," Arizona manager Torey Lovullo said. "We feel like we've got some solid backup there just in case the starter doesn't give us what he needs to."
ANALYSIS
Nelson, who fell short in his bid to be the No. 5 starter, became the top long option out the bullpen following the news that Jordan Montgomery will undergo Tommy John elbow surgery. The Montgomery news also suggests that Nelson could be in line to start should a current member of the rotation require extended downtime due to injury. Nelson was a valued part of the rotation in 2024, when he improved in several underlying metrics (K:BB, K/9, BB/9, HR/9) compared to 2023.
Nelson, who fell short in his bid to be the No. 5 starter, became the top long option out the bullpen following the news that Jordan Montgomery will undergo Tommy John elbow surgery. The Montgomery news also suggests that Nelson could be in line to start should a current member of the rotation require extended downtime due to injury. Nelson was a valued part of the rotation in 2024, when he improved in several underlying metrics (K:BB, K/9, BB/9, HR/9) compared to 2023.
Pitching Stats
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2025
2024
2023
2022
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
50
Last 10 Games
50
Last 5 Games
50
How many pitches does Ryne Nelson 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 Ryne Nelson 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
-5%
BAA vs LHP
2025
-14%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .269 | 101 | 54 | 149 | 19 | |||
| Since 2023vs Right | .284 | 124 | 27 | 170 | 22 | |||
| 2025vs Left | .500 | 1 | 1 | 2 | 0 | |||
| 2025vs Right | .429 | 2 | 0 | 3 | 0 | |||
| 2024vs Left | .243 | 58 | 20 | 70 | 10 | |||
| 2024vs Right | .288 | 68 | 14 | 85 | 7 | |||
| 2023vs Left | .294 | 42 | 33 | 77 | 9 | |||
| 2023vs Right | .276 | 54 | 13 | 82 | 15 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-42%
ERA on Road
2025
-100%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 6.44 | 1.59 | 123.0 | 6.4 | 2.6 | ||||
| Since 2023Away | 3.74 | 1.18 | 173.1 | 7.2 | 2.4 | ||||
| 2025Home | 21.60 | 3.60 | 1.2 | 16.2 | 5.4 | ||||
| 2025Away | 0 | 0 | 0 | 0 | 0 | ||||
| 2024Home | 4.52 | 1.26 | 65.2 | 7.3 | 1.5 | ||||
| 2024Away | 4.02 | 1.25 | 85.0 | 7.7 | 2.4 | ||||
| 2023Home | 8.25 | 1.92 | 55.2 | 5.0 | 3.7 | ||||
| 2023Away | 3.46 | 1.11 | 88.1 | 6.6 | 2.3 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Ryne Nelson compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 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 30 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 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
3.00K/9
16.2BB/9
5.4HR/9
0.0Fastball
96.0 mphERA
21.60WHIP
3.60BABIP
.746GB/FB
0.00Left On Base
33.3%Exit Velocity
0.0 mphBarrels/BBE
0.0%Spin Rate
0 rpmBalls Hit 95+ MPH
0.0%Swinging Strike
14.0%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Ryne Nelson See More
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Brad Johnson is back for the 2025 season and breaks down each division starting with the NL West, where the rich just got richer, with the addition of Roki Sasaki.
Past Fantasy Outlooks
2024
2023
Nelson worked as a back-end starter for Arizona in 2023, but it was an underwhelming rookie campaign with a 5.31 ERA, 1.42 WHIP and 96:46 K:BB across 144 innings. His 7.4 percent walk rate was solid and consistent with his time in the minors, but he had a 15.5 percent strikeout rate and a 1.5 HR/9. He still made the postseason roster and had a minimal role prior to the World Series, when he allowed just one run over 5.1 frames of valuable long relief in Game 4. Despite that strong finish, Nelson likely won't enter 2024 with any guarantee for a rotation spot, especially since Arizona made additions in free agency. However, the right-hander still has plenty of upside and was encouragingly less reliant on his fastball last season, and he could be a solid back-end piece in 2024 if he's able to better utilize his secondary offerings.
More Fantasy News
Rotation bid falls short
Nelson will begin the season working out of the bullpen, as Brandon Pfaadt was named Arizona's No. 5 starter Sunday, Nick Piecoro of The Arizona Republic reports.
ANALYSIS
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Calm spring no longer
Nelson allowed nine runs (eight earned) on 11 hits while striking out one over three-plus innings in Monday's Cactus League start against Kansas City.
ANALYSIS
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Makes second spring start
Nelson allowed one run on three hits while striking out three over 2.1 innings in Thursday's spring start against the Guardians.
ANALYSIS
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Logs two innings Friday
Nelson allowed one hit and two walks while striking out one over two scoreless innings in Friday's spring game against Kansas City.
ANALYSIS
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Has minor-league options
Nelson still has minor-league options remaining and could open the season at Triple-A Reno, Mark Feinsand of MLB.com reports. Arizona has seven legitimate starters in camp competing for five spots.
ANALYSIS
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Latest Fantasy Rumors
Potential trade chip?
Nelson could be a trade target this offseason, reports Will Sammon and Patrick Mooney of The Athletic.
ANALYSIS
The Diamondbacks have a bevy of starting pitching, and Nelson could be a fit for teams looking to trade for a cost-controlled starter. The right-hander had a 4.24 ERA, 1.25 WHIP and 126:34 K:BB across 150.2 innings during 2024 and is under team control for four more seasons.
The Diamondbacks have a bevy of starting pitching, and Nelson could be a fit for teams looking to trade for a cost-controlled starter. The right-hander had a 4.24 ERA, 1.25 WHIP and 126:34 K:BB across 150.2 innings during 2024 and is under team control for four more seasons.