Chourio, E. Pérez, H. Hernandez, F. Griffin, Arenado

Griffin has been a pleasant surprise … Foster Griffin (LHP, WAS) inked a one-year, $5.5 million contract back in December 2025 following a three-year stint in Japan. He has proven to be a shrewd investment, amassing a 3.06 ERA in 129 IP. Can he keep it going?

Year

IP

ERA

xERA

BB%

K%

K-BB%

GB/LD/FB

H%/S%

Vel

HR/F

Ball%

SwK%

2023+

121

3.42

N/A

7%

22%

15%

N/A

28%/75%

N/A

N/A

N/A

N/A

2024+

116

3.68

N/A

6%

26%

20%

N/A

29%/75%

N/A

N/A

N/A

N/A

2025+

78

2.29

N/A

7%

24%

17%

N/A

27%/82%

N/A

N/A

N/A

N/A

2026

129

3.06

3.67

5%

22%

17%

45/18/35

29%/79%

91.5

14%

33%

11.1%

+Nippon Professional Baseball MLEs

No, not at this clip:

• His K% ranks in the 45th percentile and his SwK% offers little hope for upside (22% xK%).
• The 90th percentile BB% has been a key asset, mostly backed by Ball% (6% xBB%). 
• Griffin’s fastball...

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