Ryne Nelson

Ryne Nelson

27-Year-Old PitcherRP
Arizona Diamondbacks
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
RANKS
Rest of Season From Preseason
#381
ADP
$Signed a one-year, $825,000 contract with the Diamondbacks in March of 2025.
Joining Arizona rotation
PArizona Diamondbacks
June 3, 2025
Nelson will move into the Diamondbacks' rotation following the injury to Corbin Burnes (elbow), John Gambadoro of Arizona Sports 98.7 FM reports.
ANALYSIS
Nelson has yielded just three runs over 16 innings in three starts this season, although that's come with an underwhelming 8:6 K:BB. It's not known when he will make his next start for the Diamondbacks, but his last appearance came on Saturday when he tossed four scoreless relief innings against the Nationals.
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Pitching Stats
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2025
2024
2023
2022
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2024 MLB Game Log
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2023 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
51
Last 10 Games
55
Last 5 Games
58
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+
 
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+
 
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
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
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
 
 
-7%
BAA vs LHP
2025
 
 
-24%
BAA vs LHP
2024
 
 
-16%
BAA vs LHP
2023
 
 
-6%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .256 703 116 60 160 39 14 21
Since 2023vs Right .275 714 141 31 185 40 8 23
2025vs Left .171 85 16 7 13 2 2 2
2025vs Right .225 84 19 4 18 4 1 1
2024vs Left .243 314 58 20 70 18 4 10
2024vs Right .288 316 68 14 85 18 5 7
2023vs Left .294 304 42 33 77 19 8 9
2023vs Right .276 314 54 13 82 18 2 15
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-32%
ERA on Road
2025
 
 
-44%
ERA at Home
2024
 
 
-11%
ERA on Road
2023
 
 
-58%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 5.58 1.44 148.1 8 9 2 6.4 2.4 1.1
Since 2023Away 3.82 1.18 188.1 12 6 0 7.3 2.5 1.2
2025Home 2.67 0.89 27.0 2 1 1 7.0 1.7 0.3
2025Away 4.80 1.20 15.0 0 0 0 8.4 3.6 1.2
2024Home 4.52 1.26 65.2 4 3 1 7.3 1.5 0.7
2024Away 4.02 1.25 85.0 6 3 0 7.7 2.4 1.3
2023Home 8.25 1.92 55.2 2 5 0 5.0 3.7 1.9
2023Away 3.46 1.11 88.1 6 3 0 6.6 2.3 1.2
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.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
3.18
 
K/9
7.5
 
BB/9
2.4
 
HR/9
0.6
 
Fastball
95.7 mph
 
ERA
3.43
 
WHIP
1.00
 
BABIP
.251
 
GB/FB
1.69
 
Left On Base
68.8%
 
Exit Velocity
82.9 mph
 
Barrels/BBE
3.2%
 
Spin Rate
2285 rpm
 
Balls Hit 95+ MPH
20.8%
 
Swinging Strike
9.4%
 
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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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.
Nelson's 2022 season was quite the roller coaster. He gave up 43 earned runs over a 53.1-inning stretch from mid-April to mid-June, righted the ship somewhat over the next couple months, excelled over three MLB starts and ended the season on the injured list with shoulder inflammation. His struggles in the hitter-friendly Pacific Coast League shouldn't be a prohibitive factor in his 2023 outlook, especially given that he had success at Double-A and in a small MLB sample. Nelson threw his plus fastball (touches 98 mph, excellent rising action) 70% of the time while mixing in a couple breaking balls and a changeup. He showed impressive flashes against quality big-league hitters and should break camp in Arizona's rotation if his shoulder issue is in the rearview mirror. There is some risk that his reliance on his fastball will be exploited as hitters see him a second time, but Nelson has legitimately good stuff and size (6-foot-3, 184 pounds) and a clear opportunity.
More Fantasy News
Could rejoin rotation, if needed
PArizona Diamondbacks
June 2, 2025
Nelson could rejoin the rotation if Corbin Burnes (elbow) isn't able to make his next start, Alex Weiner of ArizonaSports.com reports.
ANALYSIS
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Used in relief Saturday
PArizona Diamondbacks
June 1, 2025
Nelson allowed two hits and struck out one over four innings out of the bullpen in Saturday's 11-7 loss to Washington.
ANALYSIS
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Next start pushed back
PArizona Diamondbacks
May 29, 2025
Nelson is expected to make his next start iTuesday against Atlanta, Alex Weiner of ArizonaSports.com reports.
ANALYSIS
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Cruises to win, gets another start
PArizona Diamondbacks
May 26, 2025
Nelson improved to 2-1 on the season in Monday's 5-0 win over the Pirates, covering 6.2 scoreless innings and striking out four batters while allowing four hits and no walks.
ANALYSIS
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Confirmed for another start
PArizona Diamondbacks
May 25, 2025
Nelson is slated to start Monday's game against the Pirates at Chase Field.
ANALYSIS
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Latest Fantasy Rumors
Potential trade chip?
PArizona Diamondbacks
November 17, 2024
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.
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