Miami Marlins · RHP

#: 26
Team: MIA · P
Debut: 2021 · 6 MLB seasons

Janson Junk

Age 30

Contract Value $798,000/yr

Size 6' 2" · 197

Throws RHP

Bats Right

From Federal Way, WA

Team profile →Rotation →

NEXT START

vs Washington Nationals

Sun, Aug 23 · 1:40 PM ET

loanDepot park

View Matchup →

4.37

ERA

1.36

WHIP

6.4

K/9

2.5

BB/9

92.2

Innings

18

Starts

Janson Junk season snapshot

ERA

4.37

WHIP

1.36

K/9

6.4

BB/9

2.5

HR/9

1.17

IP

92.2

GS

18

ERA in last 10 starts

How good is he?

StatPlayerMLB AvgPercentile

ERA4.374.28

42nd

WHIP1.361.31

39th

K/96.48.2

15th

BB/92.53.3

74th

FIP4.224.26

50th

Start depth

5.1IP/start·18 GS

22.2%6+ IP·4/18

16.7%QS·3/18

Allowed by outing inning · innings 1–5

18 gs18 gs18 gs17 gs16 gs

RunsHits

Game log (last 10 starts)

Date	Opp	Result	IP	H	R	ER	BB	K	HR	Pitches	ERA
Aug 17	PHI	L 5-6	5.0	8	2	2	2	2	0	88	3.60
Aug 12	PIT	W 8-2	6.0	4	2	1	1	2	0	81	1.50
Aug 6	ATL	L 3-11	3.0	5	2	2	1	1	1	47	6.00
Jul 31	NYM	W 5-2	5.0	3	1	0	2	4	0	79	0.00
Jul 26	SD	L 3-5	4.2	7	1	1	0	6	0	75	2.14

2026 season · last 10 starts

Pitch arsenal (2026)

Usage %Velocity

Four-seam FB

35.6%

94.1 mph

Slider

20.8%

86.4 mph

Changeup

17.9%

87.3 mph

Sweeper

13.8%

80.1 mph

Curveball

7.7%

80.8 mph

Sinker

4.0%

93.5 mph

Hot / cold zones (vs RHB)

.217

.444

.160

.400

.319

.360

.211

.413

.235

Better than
MLB avg

Similar to
MLB avg

Worse than
MLB avg

Performance vs teams (2026)

TeamGSERA

2.61

11.25

1.50

0.00

1.93

Monthly ERA (2026)

Minimum 1 GS

More pitchers

Browse more MLB starting pitcher profiles with season stats, ERA, and matchup history.

Kai-Wei Teng4.35 ERA · Houston Astros Michael Rucker4.30 ERA · Seattle Mariners Andrés Muñoz4.37 ERA · Seattle Mariners Davis Martin4.32 ERA · Chicago White Sox Erick Fedde4.33 ERA · Chicago White Sox Tim Hill4.41 ERA · New York Yankees