Foster Griffin| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 8 | 9 | 0 | 0 | 136.0 | 135 | 42 | 119 | 61 | 4.04 | 1.301 | 25.2 |
| 2026 | 15 | 4 | 0 | 0 | 154.3 | 134 | 39 | 139 | 55 | 3.21 | 1.121 | 81.8 |
| 2022 | 0 | 0 | 0 | 0 | 6.0 | 7 | 5 | 3 | 6 | 9.00 | 2.000 | -5.1 |
| 2020 | 1 | 0 | 0 | 0 | 1.7 | 0 | 0 | 1 | 0 | 0.00 | 0.000 | 8.1 |
| Date | News |
| 8/18/26 | Giants vs. Guardians MLB picks: Hopefully, the good version of Foster Griffin shows on mound for Cleveland. Foster Griffin has been incredibly profitable this season as he takes the mound Tuesday for the Guardians vs. the Giants Source: https://www.cbssports.com/betting/news/giants-vs-g... |
| 8/18/26 | Giants vs. Guardians MLB picks: Hopefully, the good version of Foster Griffin shows on mound for Cleveland. Foster Griffin has been incredibly profitable this season as he takes the mound Tuesday for the Guardians vs. the Giants Source: https://www.cbssports.com/betting/news/giants-vs-g... |
| 8/03/26 | Sources: Guardians trade for All-Star lefty Griffin. The Guardians have completed a trade with the Nationals to acquire left-hander Foster Griffin. Source: https://www.espn.com/mlb/story/_/id/49524130/sourc... |
| 7/31/26 | Nationals vs. Braves MLB picks: Foster Griffin likely making final Washington start before trade deadline. No pitcher has been more profitable for bettors than Washington's Foster Griffin Source: https://www.cbssports.com/betting/news/nationals-v... |
| 7/27/26 | MLB rumors: Dodgers may be out on Skubal, who's scouting Foster Griffin, Mets could be in for deeper teardown. The 2026 trade deadline is exactly a week away Source: https://www.cbssports.com/mlb/news/mlb-rumors-trad... |
| 7/25/26 | [Deadspin] - Nationals All-Star Foster Griffin aims to level series vs. D-backs. Deadspin | Nationals All-Star Foster Griffin aims to level series vs. D-backs Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 7/24/26 | From Japan to potential trade deadline gem: Nationals' Foster Griffin is one of MLB's biggest success stories. Griffin, who owns a 2.68 ERA, could be one of the best pitchers dealt in the next 10 days ... but there's a case for the Nats to keep him Source: https://www.cbssports.com/mlb/news/mlb-trade-deadl... |
| 7/24/26 | From Japan to potential trade deadline gem: Nationals' Foster Griffin is one of MLB's biggest success stories. Griffin, who owns a 2.68 ERA, could be one of the best pitchers dealt in the next 10 days ... but there's a case for the Nats to keep him Source: https://www.cbssports.com/mlb/news/mlb-trade-deadl... |
| 7/20/26 | [On SI] - Foster Griffin Makes Franchise History in Nationals Series Win Over Athletics. After a blowout win to open their weekend series that was followed up by a blowout loss, the Washington Nationals entered the finale against the Athletics needi Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 4/22/26 | Foster Griffin rewards his manager’s faith, and Nationals rout Braves. Blake Butera left his starter in to go six innings for the first time in his MLB career in an 11-4 win. Source: https://www.washingtonpost.com/sports/2026/04/21/n... |
| 4/22/26 | Foster Griffin rewards his manager’s faith, and Nationals rout Braves. Blake Butera left his starter in to go six innings for the first time in his MLB career in an 11-4 win. Source: https://www.washingtonpost.com/sports/2026/04/21/n... |
| 4/16/26 | Foster Griffin, with seven pitches and a binder of secrets, is dealing. After a detour in Japan, Griffin is rebuilding his career in Washington — and is a bright spot on a strugging staff. Source: https://www.washingtonpost.com/sports/2026/04/16/f... |
| 4/16/26 | Foster Griffin, with seven pitches and a binder of secrets, is dealing. After a detour in Japan, Griffin is rebuilding his career in Washington — and is a bright spot on a strugging staff. Source: https://www.washingtonpost.com/sports/2026/04/16/f... |
| 4/12/26 | Three starts in, Nationals’ Foster Griffin continues to vex opponents. The left-hander signed out of Japan threw 5 1/3 scoreless innings in a 3-1 win over the Brewers. Source: https://www.washingtonpost.com/sports/2026/04/11/n... |
| 4/11/26 | Three starts in, Nationals’ Foster Griffin continues to vex opponents. The left-hander signed out of Japan threw 5 1/3 scoreless innings in a 3-1 win over the Brewers. Source: https://www.washingtonpost.com/sports/2026/04/11/n... |
| 3/31/26 | Nationals blow out Phillies to keep their hot start going. Everyone in Washington’s lineup had at least one hit, and Foster Griffin impressed in his first MLB action since 2022. Source: https://www.washingtonpost.com/sports/2026/03/30/n... |
| 7/16/22 | Blue Jays acquire LHP Foster Griffin in trade with Royals. The Toronto Blue Jays acquired left-hander Foster Griffin from the Kansas City Royals on Saturday in exchange for minor league right-hander Jonatan Bernal. The Blue Jays optioned Griffin to Triple-A Buffalo. Toronto also recalled right-hander Jeremy Beasley from Buffalo and designated right-hander Sergio Romo for assignment. Source: https://www.bignewsnetwork.com/news/272622840/blue... |
| 7/16/22 | Blue Jays acquire LHP Foster Griffin in trade with Royals. The Toronto Blue Jays acquired left-hander Foster Griffin from the Kansas City Royals on Saturday in exchange for minor league right-hander Jonatan Bernal. The Blue Jays optioned Griffin to Triple-A Buffalo. Toronto also recalled right-hander Jeremy Beasley from Buffalo and designated right-hander Sergio Romo for assignment. Source: https://www.bignewsnetwork.com/news/272622840/blue... |
| 7/10/22 | Kansas City Royals put Heasley on IL, recall Foster Griffin ... with more moves to come. The Royals recalled one left-hander to fill Heasley’s roster spot, while another arrived but hasn’t been added to the roster. Source: https://sports.yahoo.com/kansas-city-royals-put-he... |
| 5/20/22 | From ‘broken’ to back in Kansas City, lefty Foster Griffin returns to the KC Royals. The Royals made five roster moves ahead of Friday night’s game against the Minnesota Twins. Source: https://sports.yahoo.com/broken-back-kansas-city-l... |
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