John Curtiss

John Curtiss

32-Year-Old PitcherRP
Arizona Diamondbacks
2025 Fantasy Outlook
There was no outlook written for John Curtiss in 2025. Check out the latest news below for more on his current fantasy value.
RANKS
Rest of Season
From Preseason
$Signed a one-year, minor-league contract with the Diamondbacks in February of 2025.
Selected from Triple-A
PArizona Diamondbacks
June 28, 2025
The Diamondbacks selected Curtiss's contract from Triple-A Reno on Saturday.
ANALYSIS
Curtiss signed a minor-league deal with Arizona in February and has posted a 6.34 ERA, 1.46 WHIP and 28:9 K:BB over 32.2 innings with Reno this season. While those numbers are poor, the righty has been better of late, tossing 3.2 scoreless frames over his past three outings. To make room for Curtiss on the 26-man and 40-man rosters, the Diamondbacks designated fellow reliever Tayler Scott for assignment.
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Pitching Stats
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2025
2024
2023
2022
2021
2020
2019
2018
2017
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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Pitching Appearances Breakdown
Average Pitch Count
6
Last 10 Games
6
Last 5 Games
6
How many pitches does John Curtiss 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 John Curtiss 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
 
 
-34%
BAA vs LHP
2025
No Stats
2024
Even Split
2023
 
 
-48%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .192 30 7 3 5 0 0 2
Since 2023vs Right .290 67 10 5 18 4 0 3
2025vs Left .000 1 0 0 0 0 0 0
2025vs Right .000 3 0 0 0 0 0 0
2024vs Left .500 4 1 0 2 0 0 1
2024vs Right .500 8 0 0 4 2 0 1
2023vs Left .143 25 6 3 3 0 0 1
2023vs Right .275 56 10 5 14 2 0 2
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-52%
ERA at Home
2025
No Stats
2024
 
 
-83%
ERA on Road
2023
 
 
-70%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.38 0.94 10.2 0 0 0 4.2 2.5 2.5
Since 2023Away 7.11 1.66 12.2 0 0 0 8.5 3.6 1.4
2025Home 0.00 0.00 1.1 0 0 0 0.0 0.0 0.0
2025Away 0 0 0 0 0 0 0 0 0
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
2023Home 2.00 0.78 9.0 0 0 0 5.0 3.0 2.0
2023Away 6.75 1.69 10.2 0 0 0 9.3 4.2 0.8
More Splits View More Split Stats
Stat Review
How does John Curtiss 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
0.00
 
K/9
0.0
 
BB/9
0.0
 
HR/9
0.0
 
Fastball
0.0 mph
 
ERA
0.00
 
WHIP
0.00
 
BABIP
.000
 
GB/FB
1.00
 
Left On Base
0.0%
 
Exit Velocity
0.0 mph
 
Barrels/BBE
0.0%
 
Spin Rate
0 rpm
 
Balls Hit 95+ MPH
0.0%
 
Swinging Strike
0.0%
 
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
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September 19, 2021
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February 26, 2021
Todd Zola examines the impact of new scoring categories on the pitching side, including the rise in value of top set-up men like Tyler Duffey.
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February 11, 2021
Jason Collette continues his Bold Predictions series with the American League East. Find out why Bo Bichette could disappoint fantasy owners this season.
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January 10, 2021
The Rays signed Michael Wacha in a lesser-noticed move in December. Does the fact that it's the Rays that added him make him more interesting for fantasy purposes?
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October 15, 2020
Christopher Olson previews Thursday’s pair of games, turning to Cody Bellinger at $4,900 in Game 4 against Atlanta.
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
Signs with Arizona
PArizona Diamondbacks
February 11, 2025
Curtiss signed a minor-league contract with the Diamondbacks on Tuesday that includes an invitation to spring training.
ANALYSIS
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Goes unclaimed
PColorado Rockies
August 21, 2024
The Rockies outrighted Curtiss to Triple-A Albuquerque on Aug. 9.
ANALYSIS
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Scrubbed from 40-man roster
PColorado Rockies
August 6, 2024
The Rockies designated Curtiss for assignment Tuesday.
ANALYSIS
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Joining big-league roster
PColorado Rockies
July 27, 2024
The Rockies selected Curtiss' contract from Triple-A Albuquerque on Saturday, Thomas Harding of MLB.com reports.
ANALYSIS
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Outrighted to Triple-A
PColorado Rockies
May 30, 2024
The Rockies outrighted Curtiss to Triple-A Albuquerque on Wednesday.
ANALYSIS
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Latest Fantasy Rumors
Set for bullpen spot?
PNew York Mets
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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