Sean Keys

The Seam

The Number Where It Was — A 23-year-old first baseman got his call in June, struck out thirteen times in thirty-six at-bats, and went back down. The board that grades Triple-A contact kept his bat ranked through all of it. In August, at Buffalo, the bat explained why. August 30, 2026

The card rack

FlagshipSean Keys #BCP-89 · 2025 Bowman Chrome Prospects · 147 recent sales 7N ▼1.8%

His flagship is his rookie — one card, one market.

$1.36Raw$11.79PSA 9$34.64PSA 10$45.00BGS 10PSA 10 · 29 nights

Live on eBay now · asking, not sold · as of 2026-09-04 · paid links

$1.00Ungraded$1.25Ungraded$1.45Ungraded

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 September 4, 2026 · trend is FVR's own nightly archive · prices via SportsCardsPro · what these terms mean

Scout’s note

Sean Keys grades at 0.47 on the MLB value grid with an EV95 of 109.23, 93rd percentile among the 466 AAA bats the engine tracks — pre-consensus, the tools running ahead of the market. A fourth-rounder out of Huntington, New York, in 2024, he debuted in late June at 23 and has just 12 MLB games, batting .167 with 13 strikeouts. But over his last 11 at AAA through September 1 he hit .364 with three homers and a 1.167 OPS, and that line is where the contact quality lives.

Note written Sep 1 · FVR scout (GLM-5.2)

Current signals

The read: Keys's EV95 of 109.2 sits in the 93rd percentile of the 473 AAA bats we track (median 104.9), and on the MLB value grid his contact grades at 0.47. The tools are ahead of the market — that's what pre-consensus means.

EV95 (mph)

109.23

xVal (MLB grid)

0.4686

Balls in play

140

Age

23

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 31, 2026.

2026 salary

$0.15Mest

Tax hit

$0.15M

Service time

0 yr 0 d

Options left

3 / 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, Toronto Blue Jays.

A second set of books

The same contract, read by MLB Spreadsheets (Ethan Hullihen), as of August 27, 2026. We keep two sources on this because one source cannot check itself.

Tax AAV

$0.78M

Guaranteed

$0.78M

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 Sean Keys

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

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.