Kodai Senga — 2026 Season

2026 Season Stats

Pitching stats and MLB-wide rank · 2026 Season

Stat	2026	MLB Rank
ERA	7.11	—
WHIP	1.60	—
W	0	—
L	9	—
K	66	—
IP	57.0	—
SV	6	—
GS	8	—

2026 Season Highlights

As of September 1, Kodai Senga remains on the Mets' active roster and continues to take the mound, though this season has been a difficult one on the mound overall. He has been used in both starting and relief roles, and has even picked up saves out of the bullpen this year, marking a shift in his role. Given his track record as a frontline starter, his search for a turnaround is drawing attention. He had pitched more steadily in the prior season.

Kodai Senga's signature "Ghost Fork" — a devastating forkball with sharp downward break — makes him one of the most dangerous strikeout pitchers in baseball. After injuries and a minor league demotion derailed his 2024 and 2025 seasons with the Mets, Senga has bounced back in 2026. He returned to the rotation from Opening Day and has been pitching like the ace the Mets envisioned when they signed him in 2023.

1Senga's pitching results have struggled this season, with wins hard to come by so far.
2Known for his signature 'ghost fork' pitch even before coming to MLB, he arrived at the Mets in 2023 on the strength of a top NPB wins title to his name.
3With appearances in both starting and relief roles this year, including save opportunities, how his role settles going forward is worth watching.

DETAIL · ANALYSIS

Detailed Analysis

In-depth metrics aggregated from every at-bat and pitch.

Data as of: 2026-09-06

Expand detailed analysis ▾

Recent Form (Last 10 Starts)

Older games on the left, most recent on the right. Color shows how they played.

Best: 6IP+ / ≤1ER · Good: 5IP+ / ≤2ER · OK: 4IP+ / ≤3ER · 4ER · ≥5ER (blowup)

Pitch Arsenal

Current season pitch data by type. Velocity, spin rate, movement, whiff rate, and CSW% at a glance.

Pitch	Usage	Velo (mph)	Spin	H-Mvmt	V-Mvmt	Whiff%	CSW%
Four-Seam Fastball	42.7%	96.3	2,380	-4.5"	+9.6"	12.8%	23.4%
Forkball	24.5%	83.3	1,172	-6.8"	+0.9"	45.4%	25.3%
Cutter	16.7%	89.5	2,440	-1.1"	+4.2"	26.6%	29.4%
Sweeper	8.0%	81.1	2,567	+5.2"	-2.8"	25.0%	34.6%
Slider	4.5%	86.4	2,580	+0.6"	+0.3"	43.8%	32.6%
Sinker	3.4%	90.1	2,229	-9.4"	+4.3"	18.8%	20.0%
Curveball	0.2%	65.5	2,296	-0.3"	-6.9"	—	0.0%

H-Mvmt/V-Mvmt (inch): movement vs. a spinless ball. + = toward 3B / up, − = toward 1B / down. Whiff% = whiffs / swings, CSW% = (called strikes + whiffs) / pitches.

Handedness & Home/Away Splits

Situational splits for the current season. See strengths and weaknesses by scenario.

vs Handedness

Split	OAVG	OOPS	HR	K	BB
vs RHB	.208	.793	6	33	22
vs LHB	.276	.877	7	33	16

Home / Away

Split	OAVG	OOPS	HR	K	BB
Home	.259	.878	7	29	19
Away	.229	.795	6	37	19

Year-over-Year Performance Trend

Career-long performance trends for every key stat. How does this year compare to history?

Season	G	IP	ERA	WHIP	K/9	BB/9	K
2023	29	166.1	2.98	1.22	10.93	4.17	202
2024	1	5.1	3.38	0.56	15.19	1.69	9
2025	22	113.1	3.02	1.31	8.66	4.37	109
2026Now	26	57.0	7.11	1.60	10.42	6.00	66

Full Game Log (Pitching)

All 26 games of the 2026 season. Showing latest 10; click to expand.

Date	Opp	IP	H	ER	BB	K	ER/9
09/07	vs SF	1.0	0	0	0	1	0.00
09/05	vs SF	1.0	0	0	1	0	0.00
09/01	@ TB	1.0	0	0	1	1	0.00
08/30	vs HOU	1.0	1	0	0	0	0.00
08/29	vs HOU	1.0	0	0	0	2	0.00
08/24	@ CWS	0.1	1	1	0	0	27.00
08/23	@ CWS	1.0	1	0	1	2	0.00
08/20	vs SD	1.0	2	1	1	0	9.00
08/17	vs WSH	1.0	0	0	0	2	0.00
08/15	vs WSH	1.0	1	0	0	1	0.00

SHOW REMAINING 16 GAMES ▾

Date	Opp	IP	H	ER	BB	K	ER/9
08/11	@ ATL	1.0	0	0	1	2	0.00
08/07	@ CLE	1.0	0	0	0	2	0.00
08/05	@ CLE	1.0	0	0	1	0	0.00
08/01	vs MIA	4.0	2	3	2	4	6.75
07/19	@ PHI	1.1	3	2	3	2	13.50
07/11	vs BOS	1.0	0	0	0	1	0.00
07/08	vs KC	3.0	5	4	4	4	12.00
07/04	@ ATL	2.2	2	1	0	4	3.38
06/29	vs PHI	5.0	4	2	1	4	3.60
06/24	vs CHC	3.2	3	7	5	6	17.18
06/17	@ CIN	4.0	2	4	4	5	9.00
04/27	vs COL	2.2	3	3	3	1	10.13
04/18	@ CHC	3.1	6	6	3	3	16.20
04/12	vs OAK	2.1	8	7	2	3	27.00
04/06	@ SF	5.2	5	2	2	7	3.18
04/01	@ STL	6.0	4	2	3	9	3.00

Year-over-Year (2026 vs 2025)

Green = improvement, red = decline. "—" means no data in the same month last year.

Pitching

	Mar	Apr	Jun	Jul	Aug	Sep
ERA	—	+10.31	+8.47	+2.25	-4.44	—
K	—	-11	+4	+3	-15	—
WHIP	—	+1.24	+0.73	-0.08	-0.57	—

AI · SEASON ANALYSIS

Kodai Senga 2026 Season AI Analysis

Comprehensive 2026 season analysis generated by Claude AI from stats data (as of Sep 7, 2026).

Overview

Senga's 2026 season stands well below MLB average across nearly every rate stat. His 7.11 ERA sits far outside the P90 (2.55), P75 (3.04), and even the league average (3.60), placing him among the league's weakest qualified starters this year. WHIP (1.60) tells the same story relative to the 1.19 average. The one bright spot is strikeout rate (10.42 K/9), which clears the P75 mark (9.96) and approaches P90 (11.01) — the swing-and-miss stuff is still present even as results have collapsed.

Strengths

Swing-and-miss ability remains intact and is arguably better than at any point in his MLB career: 10.42 K/9 in 2026 exceeds his 2023 debut (10.93 was close) and comfortably tops 2025's 8.66. With 66 strikeouts in 57 innings, he's missing bats at an elite MLB-wide clip (above P75, near P90). This suggests the pitch mix and stuff quality have not degraded — hitters are still struggling to make contact when they do swing.

Areas to Improve

Control has broken down. A 6.00 BB/9 is more than double the MLB average (2.79) and sits far outside even the P50 mark (2.71), let alone P75 (2.26) or P90 (2.01). This is the clearest driver of the inflated ERA (7.11) and WHIP (1.60): traffic on the bases from walks compounds with contact allowed, and free baserunners in front of quality contact produce crooked innings. Compared to his own history — 2.98 ERA in 2023, 3.02 in 2025 — this represents a sharp and uncharacteristic regression, not a gradual decline.

Looking Ahead

The gap between elite strikeout stuff (10.42 K/9) and poor command (6.00 BB/9) suggests a mechanical or command-specific issue rather than a loss of raw ability. If walk rate trends back toward his 2023-2025 range (sub-3.5 BB/9), ERA and WHIP should correct significantly given the swing-and-miss foundation is intact. Over the remainder of the season, the key indicator to track is BB/9 game-to-game; command stabilization would be the leading signal of a turnaround, while continued elevated walk rates would keep results well below league average regardless of strikeout output.

AI-generated content (Claude) · Based on stats as of Sep 7, 2026

Detailed Analysis

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Season Analysis

Season Progress

ERA

↓ Lower is better

WHIP

↓ Lower is better

Strikeouts

Wins

Monthly Stats

ERA

vs MLB Monthly Avg↓ Lower is better

WHIP

vs MLB Monthly Avg↓ Lower is better

Strikeouts

Wins

Season Analysis

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Splits vs LHP / RHP

Season stats vs right-handed and left-handed batters

vs RHP/RHB

.208OPS .793 / HR 6

vs LHP/LHB

.276OPS .877 / HR 7

Metrics Deep Dive

MLB-wide percentile rank, defensive and pitching metric summaries, pitch-type stats, and batted-ball distribution.

Pitching — MLB-wide Standing

K/9 ranks in the top 19% of MLB.

ERA7.11

WHIP1.60

strikeouts66

K/910.42

Bars show percentile rank among MLB-wide qualified players.

PITCHER · FIP

What is Kodai Senga's FIP? 5.91 in 2026

FIP (Fielding Independent Pitching) measures a pitcher's true skill using only home runs, walks, hit-by-pitches and strikeouts — outcomes the pitcher controls. By stripping out defense and luck, it tracks real ability more closely than ERA.

Kodai Senga's 2026 FIP is 5.91, rated as "below average". That's 1.91 above the MLB average of about 4.00, leaving room to improve.

Compare with other Japanese pitchers in the FIP ranking

Pitch Type K% & BA Against

K% / BA-against / Whiff% by pitch type this season. K% is based on at-bats where each type was the strikeout pitch.

Pitch	Usage	K%	BAA	Whiff%
Four-Seam Fastball	42.7%	20.2%	.333	12.8%
Forkball	24.5%	49.3%	.250	45.4%
Cutter	16.7%	8.7%	.424	26.6%
Sweeper	8.0%	0.0%	.538	25.0%
Slider	4.5%	33.3%	.143	43.8%
Sinker	3.4%	14.3%	.400	18.8%

K%: rate of strikeouts among plate appearances where this pitch type was the final pitch. Whiff%: whiffs per swing. Types with fewer than 10 pitches excluded.

Splits by Batter Handedness

BA / OPS against and WHIP vs right-handed and left-handed batters this season. Spot weaknesses by batter type.

Split	BAA	OPS	WHIP	K	IP
vs RHB	.208	.793	1.52	33	28.1
vs LHB	.276	.877	1.69	33	28.1

Game Log

2026 Season Appearance Log

26 starts · 66 total strikeouts

Season Best K

Wed, Apr 1 @ STL

Season Debut

Wed, Apr 1 @ STL

6.0IP · 9K

Date	Opp	IP	K	HR	BB	Dec
9/7	vsSF	1.0	1	-	0	S
9/5	vsSF	1.0	0	-	1	-
9/1	@TB	1.0	1	-	1	S
8/30	vsHOU	1.0	0	-	0	-
8/29	vsHOU	1.0	2	-	0	-
8/24	@CWS	0.1	0	1	0	L
8/23	@CWS	1.0	2	-	1	-
8/20	vsSD	1.0	0	-	1	S
8/17	vsWSH	1.0	2	-	0	S
8/15	vsWSH	1.0	1	-	0	S
8/11	@ATL	1.0	2	-	1	S
8/7	@CLE	1.0	2	-	0	-
8/5	@CLE	1.0	0	-	1	-
8/1	vsMIA	4.0	4	-	2	L
7/19	@PHI	1.1	2	-	3	-
7/11	vsBOS	1.0	1	-	0	-
7/8	vsKC	3.0	4	1	4	-
7/4	@ATL	2.2	4	1	0	-
6/29	vsPHI	5.0	4	1	1	L
6/24	vsCHC	3.2	6	2	5	L
6/17	@CIN	4.0	5	2	4	L
4/27	vsCOL	2.2	1	1	3	L
4/18	@CHC	3.1	3	2	3	L
4/12	vsOAK	2.1	3	2	2	L
4/6	@SF	5.2	7	-	2	-
4/1	@STL	6.0	9	-	3	L