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MLB · P · Cleveland Guardians

Foster Griffin

B/T R/L · 6' 3" · 225 lb · born Orlando, FL, USA · age 31 · draft 2014 rd 1 · played P 52 · MLB debut 2020-07-27

Last 14 days (through 2026-08-28): 2 G · 11.0 IP · 2.45 ERA · 10 SO · 1.36 WHIP

614 batters faced scored this season His season card →

INDEXThe Index — tracked, not flagged

The card rack

FlagshipFoster Griffin #CO-FG · 2020 Topps Pro Debut Copa de La Diversion · 6 recent sales 7N 0%

$1.79Raw$11.88PSA 9$32.44PSA 10$42.00BGS 10PSA 10 · 45 nights

Live on eBay now · asking, not sold · as of 2026-08-28 · paid links

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The rookieFoster Griffin #DP24 · 2014 Bowman Draft Picks · 6 recent sales 7N 0%

$1.25RawPSA 9PSA 10BGS 10PSA 10 · 43 nights

Live on eBay now · asking, not sold · as of 2026-08-28 · paid links

See all on eBay →

Paid link — as an eBay Partner, FVR earns from qualifying purchases. · Flagship = his most-traded card (the market’s reference); the rookie = the top card of his first card year. As of August 28, 2026 · trend is FVR's own nightly archive · prices via SportsCardsPro · what these terms mean

Scout’s note

Fifteen wins, third in baseball, with a 3.19 ERA across 149.1 innings and 135 strikeouts — and the board grade is blank. That's the paper's discipline, not an oversight. A 31-year-old from Orlando, a 2014 first-round pick who debuted in the shortened summer of 2020, Griffin gets the page because the arm matters. The stuff model isn't outcome-validated yet, so no flag. The ERA-FIP gap did clear for a regression call, filed by hand. The grade waits for the science.

We wrote about Griffin hereThe Buzz July 20, 2026 · The Overnight: 7.1 IP, ER, 9 K, 0 BB (June 22, 2026) · 7.0 IP, 0 ER, 8 K, 2 BB (April 26, 2026)

Current signals

The read: Griffin is in the Index ungraded, on purpose: our stuff model is stability-tested but not outcome-validated, so no big-league arm gets a board flag from it — not even one of the best seasons in the sport. (Calls are another matter: the ERA-FIP luck gap did clear the bar, and we file arm regression calls by hand from it.) The page is here because the player matters; the board grade waits for the science.

A second set of books

The same contract, read by MLB Spreadsheets (Ethan Hullihen), as of . We keep two sources on this because one source cannot check itself.

Tax AAV
$5.50M
Term
1 yr

What the sheet prices each season at

Season2026
Salary$5.5M

A base salary under his own reading, and never subtracted from the cash figure above: a signing bonus lands in one and not the other, so the two disagree on most men without either being wrong. And the sheet does not mark which future seasons are GUARANTEED — a club option and a projected arbitration award are both just a number here, so read past the end of the deal as his forecast rather than as money owed.

Two sources, read a month apart, put this guarantee at the same dollar. That is the check, and it passed.

The tax AAV above is his number under the CBA’s own rulebook, not the average we work out from Cot’s total. On a contract with deferred money the two come apart on purpose — and neither is subtracted from the other.

Collect Foster Griffin

If the signal is right, the cardboard usually finds out later. Current listings:

Foster Griffin cards on eBay →

High-end listings ($75+) →

Paid link — as an eBay Partner, FVR earns from qualifying purchases.

Not financial advice. We take positions only after publication — never before. Misses stay on the record.

The Bureau on Foster Griffin

The scouting press, in their own words

Foster Griffin is being traded from the Nationals to the Guardians.

Joel Sherman · New York Post · August 3 · on X →

Source: Foster Griffin to the Guardians.

Robert Murray · FanSided · August 3 · on X →

Umpire favor

+1.1 net runs over 26 graded gamesthe zone was kind to him on balance.

Biggest swings: -0.9 · +0.9

→ all umpire grades

The line

YearTeamLvlGIPW–LSVERASOWHIP
2020Kansas City RoyalsMLB11.21000.0010.00
2022Kansas City RoyalsMLB54.100012.4622.31
2022Toronto Blue JaysMLB12.00000.0021.00
2022TotalMLB66.10008.5341.89
2026Washington NationalsMLB22129.112303.061161.07
2026Cleveland GuardiansMLB420.03104.05191.45
2026TotalMLB26149.115403.191351.13
MLB CAREER33157.116403.381401.14

Bio & season lines: MLB StatsAPI · refreshed nightly · abbreviations →