2026 Stats
W-L
4-1
ERA
2.12
WHIP
1.03
K
42
SV
0
Rest-of-Season Projections
2026 Fantasy Outlook
Griffin, a first-round pick by the Royals back in 2014, only threw eight big-league innings through the end of his age-26 season before deciding to head overseas in search of more regular opportunities. In 315.2 innings across three seasons for the Yomiuri Giants, he cruised to a 2.57 ERA and 1.03 WHIP, striking out 25.1% of batters while walking just 5.5% and allowing a total of just 18 home runs. His 2025 season was cut short after 78 innings due to a knee injury, but that half-season sample saw him post a dominant 1.62 ERA and 0.95 WHIP while allowing just a single homer. It was enough to convince the Nationals to bring the lefty back to the majors on a one-year, $5.5 million deal, though that dollar value isn't high enough that Griffin is a lock for a rotation spot. If his broad repertoire and pitchability are able to overcome some below-average velocity, he could be a capable innings eater, but a swingman role is also possible. Read Past Outlooks
Signed a one-year, $5.5 million contract with the Nationals in December of 2025.
Goes seven strong for fourth win
Griffin (4-1) earned the win against the Marlins on Friday, allowing two runs (one earned) on four hits and one walk with nine strikeouts over seven innings.
Analysis
Griffin allowed two runs in the first inning before dazzling with six scoreless frames, generating 17 whiffs on 103 total pitches while notching a career-high nine strikeouts. The southpaw has been rolling, allowing just four combined earned runs over four consecutive quality starts. He'll carry an impressive 2.12 ERA, 1.03 WHIP and 42:15 K:BB across 46.2 innings into a road test in Cincinnati.
Griffin allowed two runs in the first inning before dazzling with six scoreless frames, generating 17 whiffs on 103 total pitches while notching a career-high nine strikeouts. The southpaw has been rolling, allowing just four combined earned runs over four consecutive quality starts. He'll carry an impressive 2.12 ERA, 1.03 WHIP and 42:15 K:BB across 46.2 innings into a road test in Cincinnati.
Pitching Stats
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2026 MLB Game Log
2026
2022
2020
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
93
Last 10 Games
96
Last 5 Games
99
How many pitches does Foster Griffin generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Foster Griffin generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2024
-30%
BAA vs LHP
2026
-30%
BAA vs LHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2024vs Left | .148 | 16 | 5 | 8 | 2 | |||
| Since 2024vs Right | .212 | 26 | 10 | 25 | 4 | |||
| 2026vs Left | .148 | 16 | 5 | 8 | 2 | |||
| 2026vs Right | .212 | 26 | 10 | 25 | 4 | |||
| 2025vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2025vs Right | 0 | 0 | 0 | 0 | 0 | |||
| 2024vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2024vs Right | 0 | 0 | 0 | 0 | 0 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2024
Even Split
2026
Even Split
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2024Home | 2.12 | 1.24 | 17.0 | 6.4 | 4.2 | ||||
| Since 2024Away | 2.12 | 0.91 | 29.2 | 9.1 | 2.1 | ||||
| 2026Home | 2.12 | 1.24 | 17.0 | 6.4 | 4.2 | ||||
| 2026Away | 2.12 | 0.91 | 29.2 | 9.1 | 2.1 | ||||
| 2025Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2025Away | 0 | 0 | 0 | 0 | 0 | ||||
| 2024Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2024Away | 0 | 0 | 0 | 0 | 0 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Foster Griffin compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
2.80K/9
8.1BB/9
2.9HR/9
1.2Fastball
91.3 mphERA
2.12WHIP
1.03BABIP
.232GB/FB
1.30Left On Base
83.3%Exit Velocity
81.9 mphBarrels/BBE
7.7%Spin Rate
2088 rpmBalls Hit 95+ MPH
22.1%Swinging Strike
10.2%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2025
2016
2015
Griffin was a first-round pick by the Royals back in 2014, but he's only managed eight MLB innings to date. The last of those came in 2022, at which point he decided to head overseas in search of more regular opportunities in Japan. Now a 29-year-old free agent, Griffin could look to parlay his two successful seasons in NPB into another shot at an MLB rotation. In two years for the Yomiuri Giants, Griffin recorded a 2.88 ERA and 1.06 WHIP, pairing a 25.1 K% (well above the league average of 18.8%) with a 5.4 BB%. Miles Mikolas and Nick Martinez provide proof that pitchers can go from non-factors at the MLB level to players capable of providing multiple strong seasons after a brief interlude in Japan, so Griffin should be able to find someone willing to take a chance if he decides to return. Martinez's swingman role could be one Griffin seeks to replicate, as his best success stateside came after he moved to relief in 2022 and produced a 2.10 ERA and 27.1 K% at the Triple-A level.
More Fantasy News
Let down by defense Saturday
Griffin (3-1) took the loss Saturday, giving up three unearned runs on three hits and four walks over six innings as the Nationals fell 4-1 to the Brewers. He struck out three.
Analysis
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Fans eight in no-decision
Griffin did not factor into Sunday's decision against the White Sox. He allowed two hits and two walks while striking out eight across seven scoreless innings.
Analysis
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Picks up third win Tuesday
Griffin (3-0) earned the win Tuesday against Atlanta, allowing three runs on five hits and one walk with three strikeouts across six innings.
Analysis
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Tagged for four in no-decision
Griffin took a no-decision Thursday against the Pirates, allowing four runs on eight hits and one walk while striking out seven in 5.1 innings.
Analysis
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Flirts with no-hitter in second win
Griffin (2-0) recorded the win Saturday against the Brewers, allowing no runs on one hit and three walks in 5.1 innings. He struck out one.
Analysis
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Latest Fantasy Rumors
Receiving big-league offers
Griffin has received at least one multi-year offer to return to MLB ahead of the 2026 season, according to Jon Morosi of MLB Network.
Analysis
Griffin has been eyeing a return to the majors for quite some time after pitching at a high level for the Yomiuri Giants in Japan in the last three seasons. The lefty is keen on pitching as a starter at the MLB level in 2026 and is getting some interest, although it's uncertain what kind of deal he'll end up signing. Griffin could be seen as a potential innings-eater in the back of a rotation if he ends up signing a deal with an MLB team.
Griffin has been eyeing a return to the majors for quite some time after pitching at a high level for the Yomiuri Giants in Japan in the last three seasons. The lefty is keen on pitching as a starter at the MLB level in 2026 and is getting some interest, although it's uncertain what kind of deal he'll end up signing. Griffin could be seen as a potential innings-eater in the back of a rotation if he ends up signing a deal with an MLB team.