Kyle Nelson

Kyle Nelson

29-Year-Old PitcherRP
Arizona Diamondbacks AAA
2025 Fantasy Outlook
There was no outlook written for Kyle Nelson in 2025. Check out the latest news below for more on his current fantasy value.
Signed a one-year, $825,000 contract with the Diamondbacks in January of 2025.
Sent down to Reno
PArizona Diamondbacks  AAA
August 6, 2025
The Diamondbacks optioned Nelson to Triple-A Reno on Wednesday.
Analysis
After giving up two runs in two-plus innings and collecting his first big-league save following his call-up from Reno last Friday, Nelson will return to the minors to open up a spot in the bullpen for Casey Kelly, who was called up from Triple-A. Nelson owns a 6.08 ERA through 23.2 innings in the minors, though the amount of injuries in Arizona's bullpen keeps the door open for him to return to the big club before the end of the season.
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Pitching Stats
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2025 MLB Game Log
2025
2024
2023
2022
2021
2020
2025 MLB Game Log
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2024 MLB Game Log
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2023 MLB Game Log
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2022 MLB Game Log
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2021 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
15
Last 10 Games
15
Last 5 Games
15
How many pitches does Kyle 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 Kyle 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
Even Split
2025
 
 
-100%
BAA vs RHP
2024
 
 
-5%
BAA vs LHP
2023
 
 
-3%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .256 141 44 13 32 4 0 6
Since 2023vs Right .257 151 33 9 36 9 0 9
2025vs Left .333 4 1 1 1 0 0 1
2025vs Right .000 7 1 3 0 0 0 0
2024vs Left .211 22 5 3 4 0 0 1
2024vs Right .222 20 3 1 4 1 0 1
2023vs Left .262 115 38 9 27 4 0 4
2023vs Right .271 124 29 5 32 8 0 8
Home/Away Pitching Splits
Since 2023
 
 
-42%
ERA on Road
2025
 
 
-100%
ERA at Home
2024
 
 
-21%
ERA at Home
2023
 
 
-48%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 5.45 1.59 34.2 4 3 0 10.4 3.9 2.3
Since 2023Away 3.18 1.03 34.0 3 1 1 9.8 1.9 1.6
2025Home 0.00 0.00 .000000 0 0 0 0.0 0.0 0.0
2025Away 4.50 1.00 2.0 0 0 1 9.0 4.5 4.5
2024Home 3.86 0.86 7.0 0 0 0 3.9 2.6 1.3
2024Away 4.91 1.64 3.2 0 0 0 12.3 4.9 2.5
2023Home 5.53 1.66 27.2 4 3 0 12.0 3.3 2.6
2023Away 2.86 0.95 28.1 3 1 0 9.5 1.3 1.3
Minor League Left/Right Pitching Splits (AAA)
Since 2023
 
 
-30%
BAA vs LHP
2025
 
 
-30%
BAA vs LHP
2024
No Stats
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .220 52 9 2 11 2 0 3
Since 2023vs Right .313 77 12 9 21 5 0 6
2025vs Left .220 52 9 2 11 2 0 3
2025vs Right .313 77 12 9 21 5 0 6
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
Stat Review
How does Kyle 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
0.50
 
K/9
9.0
 
BB/9
18.0
 
HR/9
4.5
 
Fastball
90.1 mph
 
ERA
9.00
 
WHIP
2.50
 
BABIP
.000
 
GB/FB
0.00
 
Left On Base
83.3%
 
Exit Velocity
80.8 mph
 
Barrels/BBE
0.0%
 
Spin Rate
2360 rpm
 
Balls Hit 95+ MPH
0.0%
 
Swinging Strike
9.1%
 
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 Kyle Nelson See More
Recent RotoWire Articles Featuring Kyle Nelson See More
More Fantasy News
Earns first major-league save
PArizona Diamondbacks  AAA
August 3, 2025
Nelson picked up the save Sunday against the Athletics, allowing one run on one hit while striking out one in the ninth inning.
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Contract selected
PArizona Diamondbacks  AAA
August 1, 2025
The Diamondbacks selected Nelson's contract from Triple-A Reno on Friday.
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Remains in organization
PArizona Diamondbacks  AAA
July 7, 2025
The Diamondbacks outrighted Nelson to Triple-A Reno on Sunday.
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DFA'd by Arizona
PArizona Diamondbacks  AAA
July 2, 2025
The Diamondbacks designated Nelson for assignment Wednesday.
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Dismissed from bullpen competition
PArizona Diamondbacks  AAA
March 19, 2025
The Diamondbacks optioned Nelson to Triple-A Reno on Wednesday.
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