Sean Sullivan

Sean Sullivan

23-Year-Old PitcherSP
Colorado Rockies
2026 Fantasy Outlook
There was no outlook written for Sean Sullivan in 2026. Check out the latest news below for more on his current fantasy value.
Signed a one-year contract with the Rockies in June of 2026.
Yields eight runs in loss
PColorado Rockies
June 17, 2026
Sullivan (0-1) allowed eight runs on nine hits and two walks while striking out two over four innings to take the loss versus the Cubs on Wednesday.
Analysis
Sullivan threw 56 of 82 pitches for strikes, but the Cubs had no trouble getting to him. The southpaw threw three scoreless innings against the Athletics last week before his major-league debut was cut short by an illness. Sullivan pitched to a 5.76 ERA, 1.57 WHIP and 50:10 K:BB over 54.2 innings with Triple-A Albuquerque prior to his call-up, and given his tough home park, he's a risky option at best in fantasy. If Tanner Gordon (hip) remains out next week, Sullivan is tentatively projected to make a home start versus the Red Sox.
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Pitching Stats
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2026 MLB Game Log
2026
2026 MLB Game Log
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Scoring
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Pitching Appearances Breakdown
Average Pitch Count
66
Last 10 Games
66
Last 5 Games
66
How many pitches does Sean Sullivan 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 Sean Sullivan 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 2024
 
 
-9%
BAA vs LHP
2026
 
 
-9%
BAA vs LHP
2025
No Stats
2024
No Stats
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .333 9 0 0 3 0 0 1
Since 2024vs Right .364 26 4 2 8 3 1 1
2026vs Left .333 9 0 0 3 0 0 1
2026vs Right .364 26 4 2 8 3 1 1
2025vs Left 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2024
 
 
-100%
ERA at Home
2026
 
 
-100%
ERA at Home
2025
No Stats
2024
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2024Home 0 0 0 0 0 0 0 0 0
Since 2024Away 10.29 1.86 7.0 0 1 0 5.1 2.6 2.6
2026Home 0 0 0 0 0 0 0 0 0
2026Away 10.29 1.86 7.0 0 1 0 5.1 2.6 2.6
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0 0 0 0 0 0 0 0 0
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Sean Sullivan compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 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 120 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
2.00
 
K/9
5.1
 
BB/9
2.6
 
HR/9
2.6
 
Fastball
88.5 mph
 
ERA
10.29
 
WHIP
1.86
 
BABIP
.364
 
GB/FB
0.25
 
Left On Base
49.0%
 
Exit Velocity
75.8 mph
 
Barrels/BBE
0.0%
 
Spin Rate
2135 rpm
 
Balls Hit 95+ MPH
4.5%
 
Swinging Strike
4.6%
 
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 Sean Sullivan See More
Recent RotoWire Articles Featuring Sean Sullivan See More
More Fantasy News
Awarded another start
PColorado Rockies
June 16, 2026
Sullivan (illness) will start Wednesday's game against the Cubs at Wrigley Field.
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Exits start with illness
PColorado Rockies
Illness
June 12, 2026
Sullivan was removed from his start Friday against the Athletics due to an illness, Patrick Saunders of The Denver Post reports.
Analysis
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Contract selected
PColorado Rockies
June 12, 2026
The Rockies selected Sullivan's contract from Triple-A Albuquerque ahead of his start Friday against the Athletics.
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Set to make MLB debut Friday
PColorado Rockies
June 12, 2026
The Rockies will call up Sullivan from Triple-A Albuquerque to make his major-league debut with a start Friday versus the Athletics, Kevin Henry of The Denver Gazette reports.
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Ready to go for Double-A club
PColorado Rockies
May 14, 2025
Double-A Hartford activated Sullivan (hip) on Tuesday, and he's listed as the team's scheduled starter for Game 1 of a doubleheader Wednesday with Binghamton.
Analysis
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