Roki Sasaki

Active

Los Angeles Dodgers · Pitcher

Age 246' 2" · 187 lbsThrows Right

FBaseball Overview

After a transitional first MLB season in 2025, Sasaki enters his second year with the Dodgers still working to establish consistency at the major league level, posting a 3-5 record with a 4.88 ERA and 1.33 WHIP across 72 innings in 2026. The young right-hander continues to flash strikeout upside with 72 strikeouts in the season, suggesting the electric stuff that made him a prospect remains intact, but he remains a risky proposition in redraft leagues given the elevated ERA and WHIP figures. Fantasy managers should view him as a speculative depth option with significant upside if he can harness his stuff and improve command, though the early returns indicate he's not yet reliable for category help in wins, ERA, or WHIP this season. His role appears to be a standard rotation piece for Los Angeles rather than an ace-in-waiting, making him better suited for dynasty or keeper formats where the development arc justifies the volatility.

News Updates

Roki Sasaki surrenders six runs in rough outing
Los Angeles Dodgers pitcher Roki Sasaki allowed six runs on seven hits and two walks with three strikeouts over three innings in a no-decision against San Diego on Thursday. His poor performance represents a significant step backward after previous success. Fantasy managers should be concerned about his immediate outlook.
Jul 3, 2026

MLB Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2025	Los Angeles Dodgers	10	8	1	1	4.46	1.43	28	36.1	22
2026	Los Angeles Dodgers	15	15	3	5	5.40	1.40	75	75.0	32
Career	Totals	25	23	4	6	5.09	1.41	103	111.1	54

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2025	Oklahoma City Comets	7	5	0	2	0	6.10	1.60	19	20.2	13
Career	Totals	7	5	0	2	0	6.10	1.60	19	20.2	13

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Game Log2026 season

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Analytics2026 season · via Baseball Savant

Click for year to year changes

FB Velo97.5 mph

Avg Spin1704 rpm

Whiff %27.9%

K %22.8%

BB %9.7%

Hard Hit %45.6%

Barrel %12.9%

xERA4.77

xBA Against0.247

xSLG Against0.433

BA Against0.251

SLG Against0.495

GB%43.8%

FB%28.1%

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

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Year

Team

ERA

WHIP

2025

Los Angeles Dodgers

4.46

1.43

36.1

2026

Los Angeles Dodgers

5.40

1.40

75.0

Career

Totals

5.09

1.41

103

111.1

Year

Team

ERA

WHIP

2025

Oklahoma City Comets

6.10

1.60

20.2

Career

Totals

6.10

1.60

20.2