Kodai Senga

Active

New York Mets · Pitcher

Age 336' 1" · 202 lbsThrows Right

#225 Preseason

FBaseball Overview

At 33 years old, this veteran right-hander faces significant fantasy headwinds after a brutal 2026 start marked by an unsightly 9.09 ERA and 1.78 WHIP across 32.2 innings, a stark reversal from his solid 2025 campaign that featured a 3.02 ERA and respectable strikeout production. His All-Star pedigree from 2023 suggests he still possesses the stuff to be fantasy-relevant, but the current velocity and command metrics demand caution before investing in him as a reliable rotation anchor. The critical question for fantasy managers is whether these early struggles reflect age-related decline, injury concerns, or simply poor luck that might reverse course—making him a risky late-round flier rather than a dependable contributor. Proceed with extreme caution and monitor his next few starts closely before allocating meaningful roster space.

News Updates

Kodai Senga earns first save as Mets closer
Kodai Senga earned his first career save for the Mets against Atlanta, surprisingly getting the call instead of $51 million closer Devin Williams in a three-run save situation. The move suggests New York may be considering a change in their closer role or testing Senga's capability in high-leverage situations. This development could significantly impact fantasy closer eligibility going forward.
Aug 11, 2026

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2023	New York Mets	29	29	12	7	0	2.98	1.22	202	166.1	77
2024	New York Mets	1	1	1	0	0	3.38	0.56	9	5.1	1
2025	New York Mets	22	22	7	6	0	3.02	1.31	109	113.1	55
2026	New York Mets	27	8	0	9	7	7.14	1.60	68	58.0	38
Career	Totals	79	60	20	22	7	3.70	1.31	388	343	171

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

Minor League Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2024	2 teams▼	5	5	0	0	3.86	1.43	15	14	8
2025	2 teams▼	3	3	1	1	5.40	1.43	16	13.1	4
2026	2 teams▼	2	2	0	1	5.19	1.62	10	8.2	4
Career	Totals	10	10	1	1	4.17	1.25	38	36.2	14

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

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo95.9 mph

Avg Spin2102 rpm

Whiff %28.6%

K %25.8%

BB %14.4%

Hard Hit %39.4%

Barrel %12.9%

xERA5.08

xBA Against0.236

xSLG Against0.422

BA Against0.248

SLG Against0.482

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.

Articles featuring Kodai Senga

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Year

Team

ERA

WHIP

2023

New York Mets

2.98

1.22

202

166.1

2024

New York Mets

3.38

0.56

5.1

2025

New York Mets

3.02

1.31

109

113.1

2026

New York Mets

7.14

1.60

58.0

Career

Totals

3.70

1.31

388

343

171

Year

Team

ERA

WHIP

2024

2 teams▼

3.86

1.43

2025

2 teams▼

5.40

1.43

13.1

2026

2 teams▼

5.19

1.62

8.2

Career

Totals

4.17

1.25

36.2