Roki Sasaki

Roki Sasaki

24-Year-Old PitcherSP
Los Angeles Dodgers
2026 Fantasy Outlook
The beginning of Sasaki's tenure with the Dodgers was rocky, to say the least. The 24-year-old posted a 4.72 ERA, 1.49 WHIP and 29:22 K:BB over 34.1 innings covering his first eight starts of the season before landing on the injured list with a right shoulder impingement. Sasaki would not make another start with the big club in 2025, finally returning as a reliever in late September after a mechanical adjustment unlocked his stuff. He then thrived out of the bullpen in a couple late regular-season appearances and in the playoffs. Sasaki will be given another chance to start in 2026, and the upside remains tantalizing. That said, he'll be a major wild card for fantasy purposes from a performance standpoint, and even if he pitches well, the workload could be relatively limited. Read Past Outlooks
RANKS
Rest of Season From Preseason
#251
ADP
Signed a one-year contract with the Dodgers in March of 2026.
Still in rotation despite struggles
PLos Angeles Dodgers
March 24, 2026
Dodgers manager Dave Roberts recommitted to Sasaki as a member of the team's rotation after another poor outing from the pitcher Monday against the Angels, Katie Woo of The Athletic reports.
Analysis
Sasaki was pulled in the first inning Monday before recording an out, as he hit a batter and walked in two runs while throwing 30 pitches. He re-entered the game in the second inning and wound up covering two-plus frames, getting charged with five runs on six walks and two hit-by-pitches. Sasaki finished the Cactus League with a 15.58 ERA and 12:15 K:BB over 8.2 innings. Despite the struggles, Sasaki remains lined up to start Monday versus the Guardians. Roberts will be forced to have a short leash with Sasaki, however. Justin Wrobleski is set to open the season in a hybrid role and is expected to be available to cover multiple innings out of the bullpen after Sasaki, if needed.
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Pitching Stats
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2026 MLB Game Log
2026
2025
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2025 MLB Game Log
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Left/Right Pitching Splits
Since 2024
 
 
-19%
BAA vs LHP
2026
No Stats
2025
 
 
-15%
BAA vs LHP
2024
 
 
-100%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .192 92 16 18 14 1 0 4
Since 2024vs Right .236 83 15 9 17 4 1 2
2026vs Left 0 0 0 0 0 0 0 0
2026vs Right 0 0 0 0 0 0 0 0
2025vs Left .203 85 15 15 14 1 0 4
2025vs Right .239 76 13 7 16 4 1 2
2024vs Left .000 7 1 3 0 0 0 0
2024vs Right .200 7 2 2 1 0 0 0
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Home/Away Pitching Splits
Since 2024
 
 
-1%
ERA on Road
2026
No Stats
2025
 
 
-3%
ERA at Home
2024
 
 
-100%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2024Home 4.38 1.62 12.1 0 1 0 6.6 5.8 1.5
Since 2024Away 4.33 1.41 27.0 1 0 0 7.3 6.3 1.3
2026Home 0 0 0 0 0 0 0 0 0
2026Away 0 0 0 0 0 0 0 0 0
2025Home 4.38 1.62 12.1 0 1 0 6.6 5.8 1.5
2025Away 4.50 1.33 24.0 1 0 0 7.1 5.3 1.5
2024Home 0 0 0 0 0 0 0 0 0
2024Away 3.00 2.00 3.0 0 0 0 9.0 15.0 0.0
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Stat Review
How does Roki Sasaki 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
1.27
 
K/9
6.9
 
BB/9
5.4
 
HR/9
1.5
 
Fastball
98.8 mph
 
ERA
4.46
 
WHIP
1.43
 
BABIP
.244
 
GB/FB
1.11
 
Left On Base
78.0%
 
Exit Velocity
84.2 mph
 
Barrels/BBE
7.8%
 
Spin Rate
1632 rpm
 
Balls Hit 95+ MPH
28.9%
 
Swinging Strike
9.1%
 
Prospect Rankings History
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Roki Sasaki See More
Recent RotoWire Articles Featuring Roki Sasaki See More
2025 Fantasy Outlook
As a 20-year-old NPB phenom, Sasaki threw a perfect game and followed that up with eight perfect innings in his next start. Three years later, he's set to get his shot at the MLB level. He's sure to generate a ton of interest due to his youth and potential, but there's plenty of downside with Sasaki as well. First and foremost are durability concerns. He topped out at 20 starts and 129.1 innings in 2022 and has averaged 16.5 starts and 101 innings over the last two years while battling oblique and arm issues. He's taking steps to address those concerns by decreasing his fastball velocity and pitching to contact more often, with his fastball now sitting in the upper 90s instead of triple digits and his K% falling from 39.1% in 2023 to 28.6% in 2024. That could mean Sasaki is simply getting worse rather than making a conscious decision to stay healthy, as it did result in a career-high ERA - but when a 2.35 ERA represents a career high, expect MLB teams to remain very interested.
More Fantasy News
Posts uneven spring start
PLos Angeles Dodgers
March 18, 2026
Sasaki gave up three runs on four hits and four walks while striking out five batters over 3.1 innings in a Cactus League outing against Kansas City on Tuesday.
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Shaky again in second spring start
PLos Angeles Dodgers
March 3, 2026
Sasaki allowed four runs on two hits and three walks while striking out one batter over two innings in a Cactus League start versus Cleveland on Tuesday.
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Struggles in spring debut
PLos Angeles Dodgers
February 26, 2026
Sasaki tossed 1.1 innings against Arizona in a Cactus League game Wednesday, allowing three runs on three hits and two walks while striking out three batters.
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Expected to open 2026 in rotation
PLos Angeles Dodgers
December 8, 2025
Dodgers general manager Brandon Gomes said in November that Sasaki will "absolutely" be in the team's starting rotation next season, Brian Murphy of MLB.com reports.
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Locks in third save
PLos Angeles Dodgers
October 16, 2025
Sasaki did not allow a baserunner while striking out one across a scoreless ninth inning to earn the save in Game 3 of the NLCS on Thursday against the Brewers.
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Latest Fantasy Rumors
Primary option in save situations
PLos Angeles Dodgers
October 8, 2025
Sasaki will operate as the Dodgers' primary option in save situations, Dave Roberts told Jack Harris of the Los Angeles Times this week.
Analysis
Sasaki recorded a one-out save in Game 2 of the NLDS against the Phillies after retiring Trea Turner with runners on the corners and two outs in a 4-3 win Monday. It was the first time in his MLB career that he was called upon in the middle of an inning, but it's worth noting that Sasaki has finished three of the Dodgers' four postseason games so far.
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