2026 Stats
W-L
7-2
ERA
3.32
WHIP
1.11
K
80
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.
Delivers quality start Tuesday
Griffin didn't factor into the decision in Tuesday's 6-4 win over the Royals, allowing one run on six hits and two walks over six innings. He struck out six.
Analysis
The 30-year-old lefty produced his second straight quality start and seventh of the season on 100 pitches (74 strikes), but Griffin saw his eighth win slip away when the Nationals' bullpen coughed up a two-run lead in the top of the seventh inning. Griffin has been locked in over his last five outings, posting a 1.93 ERA, 0.96 WHIP and 26:5 K:BB though 28 innings. He'll look to keep rolling in his next start, which is scheduled to come at home early next week against the Phillies.
The 30-year-old lefty produced his second straight quality start and seventh of the season on 100 pitches (74 strikes), but Griffin saw his eighth win slip away when the Nationals' bullpen coughed up a two-run lead in the top of the seventh inning. Griffin has been locked in over his last five outings, posting a 1.93 ERA, 0.96 WHIP and 26:5 K:BB though 28 innings. He'll look to keep rolling in his next start, which is scheduled to come at home early next week against the Phillies.
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
91
Last 10 Games
88
Last 5 Games
92
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
-33%
BAA vs LHP
2026
-33%
BAA vs LHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2024vs Left | .165 | 29 | 6 | 15 | 3 | |||
| Since 2024vs Right | .246 | 51 | 17 | 55 | 12 | |||
| 2026vs Left | .165 | 29 | 6 | 15 | 3 | |||
| 2026vs Right | .246 | 51 | 17 | 55 | 12 | |||
| 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
-10%
ERA on Road
2026
-10%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2024Home | 3.55 | 1.33 | 33.0 | 7.6 | 3.3 | ||||
| Since 2024Away | 3.18 | 0.96 | 51.0 | 9.2 | 1.9 | ||||
| 2026Home | 3.55 | 1.33 | 33.0 | 7.6 | 3.3 | ||||
| 2026Away | 3.18 | 0.96 | 51.0 | 9.2 | 1.9 | ||||
| 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
3.48K/9
8.6BB/9
2.5HR/9
1.6Fastball
91.4 mphERA
3.32WHIP
1.11BABIP
.260GB/FB
1.32Left On Base
80.6%Exit Velocity
81.2 mphBarrels/BBE
7.1%Spin Rate
2157 rpmBalls Hit 95+ MPH
22.5%Swinging Strike
10.7%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
Strong start wasted Wednesday
Griffin didn't factor into the decision Wednesday, allowing one run on six hits over six innings in an 11-10 loss to the Giants. He struck out five without walking a batter.
Analysis
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Sharp for five innings in win
Griffin (7-2) allowed one run on two hits and no walks while striking out four over five innings to earn the win over the Diamondbacks on Friday.
Analysis
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Allows three homers in no-decision
Griffin did not factor into the decision in Saturday's 9-4 win over the Padres, allowing three runs on five hits and two walks with five strikeouts over five innings.
Analysis
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Bounces back against Atlanta
Griffin (6-2) earned the win against Atlanta on Sunday, allowing three hits and one walk while striking out six across six scoreless innings.
Analysis
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Stumbles vs. Reds
Griffin (4-2) took the loss Thursday against Cincinnati, allowing nine runs on seven hits and three walks over 4.1 innings. He struck out seven.
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.