Mason Miller

The card rack

FlagshipMason Miller [Raywave] #142 · 2025 Topps Chrome · 104 recent sales 7N ▲0%

$1.25Raw$22.50PSA 9$34.91PSA 10$45.00BGS 10PSA 10 · 45 nights

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

$0.99Ungraded$1.00Ungraded$1.00Ungraded

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The rookieMason Miller #USC129 · 2023 Topps Chrome Update · 163 recent sales 7N ▼1%

$1.54Raw$12.47PSA 9$93.84PSA 10$122BGS 10PSA 10 · 43 nights

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

$0.99Ungraded$0.99Ungraded$1.25Ungraded

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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

A third-round pick out of the 2021 draft, the Pittsburgh-born Miller has been one of the most dominant arms in the sport — 92 strikeouts across 50.1 innings with a 0.89 ERA and 30 saves for San Diego. The Index carries him ungraded by design: our stuff model holds up under stability testing but hasn't cleared outcome validation, so no arm gets a board flag from it yet. The ERA-FIP luck gap, though, cleared our bar by hand.

Current signals

The read: Miller 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.

WAR (season · MLB calc)

3.2

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 5, 2026.

2026 salary

$4.00M

Tax hit

$4.00M

Service time

2 yr 166 d

Options left

3 / 3

Regime flagged: the sheet's out-year codes read arbitration and 2.166 reads pre_arb. Kept the sheet's; Super Two and optional assignments move this line and the service boundary cannot see them.

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

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

$4.00M

Guaranteed

$4.00M

Term

1 yr

His class

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 Mason Miller

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.

The Bureau on Mason Miller

The scouting press, in their own words