Carson Seymour

The card rack

FlagshipAlan Rangel / Elvis Alvarado / Carson Seymour / Joe Rock #389 · 2026 Topps Heritage · 77 recent sales 7N ▲0%

$1.99Raw$13.07PSA 9$38.80PSA 10$50.00BGS 10PSA 10 · 45 nights

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

$1.29Ungraded$1.29Ungraded$1.49Ungraded

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The rookieCarson Seymour #91A-CAR · 2026 Topps 1991 Autograph · 53 recent sales 7N ▼0.2%

$2.22Raw$14.09PSA 9$41.97PSA 10$55.00BGS 10PSA 10 · 45 nights

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

$2.75Ungraded$3.99Ungraded$4.00Ungraded

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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

Seymour — a 6-foot-5, 264-pound right-hander from Poway, California, taken in the 6th round of the 2021 draft — debuted in June 2025 at 27 and has 22 career appearances with 35 strikeouts. He's in the Index ungraded by design: the stuff model is stability-tested but not outcome-validated, so no arm draws a board flag from it, not even for one of the best seasons in the sport. The ERA-FIP luck gap did clear the bar, and that's where we hand-file arm regression calls. His 6.23 ERA across 13 innings is the box score; the board grade is still pending.

Current signals

The read: Seymour 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.

Stuff-lite

0.2346

CSW%

25.5%

Pitches

1178

Age

27

A market fact, not an engine read: what a club decided about him, on the season before this one. Figures from Cot’s, as of August 14, 2026.

2026 salary

$0.37Mest

Tax hit

$0.37M

Service time

0 yr 74 d

Options left

2 / 3

Regime read from his service time, not from the sheet — it does not project him past this season. Super Two eligibility is the top 22% of a class and can move this line in a way service time alone cannot see.

Cash and the tax hit are two different rulebooks and are never subtracted from one another — see the payroll board for his club, San Francisco Giants.

A second set of books

The same contract, read by MLB Spreadsheets (Ethan Hullihen), as of August 20, 2026. We keep two sources on this because one source cannot check itself.

Tax AAV

$0.79M

Guaranteed

$0.79M

Term

1 yr

His class

Pre-Arb

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 Carson Seymour

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

High-end listings ($75+) →

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