John Curtiss

John Curtiss

33-Year-Old PitcherRP
Arizona Diamondbacks AAA
2026 Fantasy Outlook
There was no outlook written for John Curtiss in 2026. Check out the latest news below for more on his current fantasy value.
RANKS
Rest of Season
From Preseason
Signed a minor-league contract with the Diamondbacks in December of 2025.
Loses out in bid for roster
PArizona Diamondbacks  AAA
March 15, 2026
The Diamondbacks reassigned Curtiss to minor-league camp Sunday, Alex Weiner of ArizonaSports.com reports.
Analysis
Curtiss appears set to begin the season in the bullpen at Triple-A Reno after he was touched up for three earned runs on five hits and two walks over 5.2 innings in Cactus League play. The 32-year-old righty could earn another look in the majors if he can rediscover the form he displayed last season across two stints with Arizona last year, when he collected four holds and accrued a 3.93 ERA, 0.93 WHIP and 24:5 K:BB in 36.2 innings.
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Pitching Stats
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2025 MLB Game Log
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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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2020 MLB Game Log
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2019 MLB Game Log
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2018 MLB Game Log
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2017 MLB Game Log
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Minor League Game Log
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Left/Right Pitching Splits
Since 2024
 
 
-40%
BAA vs LHP
2026
No Stats
2025
 
 
-44%
BAA vs LHP
2024
Even Split
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .172 67 15 3 11 0 0 4
Since 2024vs Right .289 86 10 2 24 10 0 3
2026vs Left 0 0 0 0 0 0 0 0
2026vs Right 0 0 0 0 0 0 0 0
2025vs Left .150 63 14 3 9 0 0 3
2025vs Right .267 78 10 2 20 8 0 2
2024vs Left .500 4 1 0 2 0 0 1
2024vs Right .500 8 0 0 4 2 0 1
Home/Away Pitching Splits
Since 2024
 
 
-37%
ERA on Road
2026
No Stats
2025
 
 
-41%
ERA on Road
2024
 
 
-83%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2024Home 5.57 1.00 21.0 1 1 1 4.7 0.9 1.7
Since 2024Away 3.50 1.06 18.0 2 1 0 7.0 1.5 1.5
2026Home 0 0 0 0 0 0 0 0 0
2026Away 0 0 0 0 0 0 0 0 0
2025Home 4.79 0.87 20.2 1 1 1 4.8 0.9 1.3
2025Away 2.81 1.00 16.0 2 1 0 7.3 1.7 1.1
2024Home 54.00 9.00 .333333 0 0 0 0.0 0.0 27.0
2024Away 9.00 1.50 2.0 0 0 0 4.5 0.0 4.5
Minor League Left/Right Pitching Splits (AAA)
Since 2024
 
 
-5%
BAA vs RHP
2026
 
 
-63%
BAA vs RHP
2025
 
 
-3%
BAA vs RHP
2024
 
 
-1%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .283 153 40 10 39 6 3 3
Since 2024vs Right .270 229 36 17 54 20 3 9
2026vs Left .273 12 4 1 3 0 0 1
2026vs Right .100 13 3 2 1 0 0 0
2025vs Left .300 52 14 1 15 1 0 2
2025vs Right .291 90 14 8 23 11 0 5
2024vs Left .273 89 22 8 21 5 3 0
2024vs Right .270 126 19 7 30 9 3 4
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 John Curtiss See More
Recent RotoWire Articles Featuring John Curtiss See More
Past Fantasy Outlooks
2021
2018
2017
Following an awful 2019 campaign during which he registered a 7.75 ERA and walked 22 batters in 33 innings between two Triple-A clubs, Curtiss was released by the Phillies and faced an uncertain future. In a career-changing turn of events, the Rays swooped in and did what they do best, helping Curtiss adjust his mechanics and emerge as one of the AL's top middle relievers. The right-hander thrived in his first extended big-league opportunity, posting a 1.80 ERA and 0.96 WHIP over 25 innings. Whereas he couldn't seem to find the strike zone the previous season, Curtiss demonstrated exquisite control in 2020, registering a minuscule 3.0 BB%. Meanwhile, he relied almost exclusively on a mid-90s fastball and effective slider to register a 25.3 K%. Curtiss' 3.57 xFIP portends some regression over a full season, but he's locked into a middle-relief role with an occasional opportunity to open.
Curtis had an impressive season at Triple-A last year with a 1.85 ERA and 12.3 K/9. He struggled in his first trip to the majors with a 8.31 ERA and allowing nine hits and two home runs in 8.2 innings. However, he had a 10.4 K/9 in the majors. He should be back in the majors at some point this summer due to his velocity (95.2 mph average fastball) and decent control. He could have a high-leverage role in the bullpen eventually if he can improve his off-speed pitches.
The 6th-round 2014 draft pick had an impressive 12.5 K/9 between High-A and Low-A last season. He then followed up with a 2.84 ERA and 12.8 K/9 in the Arizona Fall League. He'll begin in Double-A and could advance rapidly as the Twins are in need of bullpen arms with high strikeout rates.
More Fantasy News
Returns to Arizona
PArizona Diamondbacks  AAA
December 18, 2025
The Diamondbacks re-signed Curtiss to a minor-league contract Tuesday.
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Outrighted to Reno
PArizona Diamondbacks  AAA
November 5, 2025
Curtiss cleared waivers Wednesday and was sent outright to Triple-A Reno, Alex Weiner of ArizonaSports.com reports.
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Earns first save of season
PArizona Diamondbacks  AAA
September 20, 2025
Curtiss allowed a hit in a scoreless inning to earn the save in Saturday's 4-3 win over the Phillies.
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Collects third win of 2025
PArizona Diamondbacks  AAA
September 13, 2025
Curtiss (3-1) came away with the win in Saturday's extra-inning game against the Twins, allowing one hit and zero walks while striking out two batters in two scoreless innings.
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Selected from Triple-A
PArizona Diamondbacks  AAA
June 28, 2025
The Diamondbacks selected Curtiss's contract from Triple-A Reno on Saturday.
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Latest Fantasy Rumors
Set for bullpen spot?
PNew York Mets  AAA
March 26, 2023
Curtiss is in position to secure one of the Mets' final relief roles, per Anthony DiComo of MLB.com.
Analysis
Curtiss is coming off a solid season, logging a 3.45 ERA and an expected ERA of 3.87. The 29-year-old doesn't post stellar strikeout numbers, so he's likely to gain fantasy relevance only if he parlays a strong start into save opportunities at some point.
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