Sean Gamble
CF · Low-A · 20.0y · #3165 of 7,922 we rate
- The player
- FRINGE
- The market
- Untested
- What to do
- Wait for a better price
43 out of 100 — our all-round score from the season line, his tools against the level, and how young he is for it.
24 cards of his are listed and nothing comparable has verifiably sold, so we will not tell you whether the asks are fair.
Closest of his is Sean Gamble 2025 1st Bowman Chrome Auto…. Priced above value.
Our take
Fringe prospect, untested market.
Sean Gamble scores 43 out of 100 (#3165 of the 7,922 we score), and the case rests on one thing: young for the level — +1.0y vs his level at Low-A — younger than 83% of the players there.
His core Bowman card has been selling at $23–29 off 3 confirmed sales.
Cards of his are listed and none of them can be priced against a confirmed sale, so any judgment about value today would be a guess dressed as a number.
The thing most likely to be wrong here: nothing has sold — no confirmed sale of any card of his in 90 days, so nothing on this page can tell you what a fair price is.
The signal
Young for the level
+1.0y vs his level at Low-A — younger than 83% of the players there.
The case is fading
Baseball momentum 0/100 — the on-field case is fading. Read from his baseball alone — never from what his cards did.
Speed: plus
46 SB per 600 PA — stolen bases per full season of plate appearances Better than 84% at his level.
Premium position
CF — the bat does not have to carry the whole profile.
What the hobby pays up for
CF is a position the hobby pays up for.
Why now
No catalyst right now — no promotion, no logged step change, and no measurable move in his card prices. This is a valuation-driven watch rather than a timing one.
What could go wrong
Nothing has sold
No confirmed sale of any card of his in 90 days, so nothing on this page can tell you what a fair price is.
Benchmark not checklist-verified
His core card was identified from how raw base 1st bowman draft chrome auto sellers describe it, not from a checklist. The identity is likely, not established.
What the hobby pays for him
Benchmark card: 2025 Bowman Draft 1st Auto CPA-SG — raw, base, unnumbered.
Described by 3 independent sellers — observed, not checklist-verified.
$22.50–28.60midpoint $26.00
Confirmed· 3 salesmost recent 2026-08-24 · 3 listed now
- 7 days
- not enough sales
- 30 days
- not enough sales
- 90 days
- not enough sales
This is his benchmark, not the value of any particular card in front of you — a /250 is a different market.
The card that matters
A card-quality answer, not a price one. It does not change when a seller changes their mind.
2025 Bowman Draft 1st Auto CPA-SG
Raw base 1st Bowman Draft Chrome Auto
The draft-class equivalent of the canonical auto — same card kind, other product line. Identified from 3 independent sellers describing it — likely, not established.
A card is never the one to own because it is numbered. Scarcity is a modifier on a vehicle, not a vehicle — a /25 of a card nobody collects is a rarer version of nothing.
Best value right now
Where the money would go today, which is frequently a lesser card than the one above — or nowhere.
No good entry today
The closest to fair is Sean Gamble 2025 Bowman Draft HTA Choice Refractor Chrome 1st Auto /150 PSA 10 at $306, 163% over the $117 that copies of it have confirmed sold in. Nothing of his is currently below its own sold band.
/150 at or under $117 delivered would be at the bottom of what it has actually sold for.
What would make this a buy
- Priced above value
- Player not there yet
- On his best-priced card: waiting on sales.
What is for sale right now
24 cards of his are listed · 0 of the 24 we can judge clear the investment bar. These are the 6 worth looking at, best first; the other 18 are under "The whole live market".
SEAN GAMBLE 2025 BOWMAN CHROME DRAFT 1ST AUTOGRAPH CHOICE HTA AUTO /150 PSA 9
/150 · PSA 9 · takes offers · listed 17d
Waiting on sales · 1 other thing in the way
Data stale — Last confirmed live 57h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$253.95
modeled ~$149.50
NEEDS EVIDENCE
SEAN GAMBLE 2025 BOWMAN CHROME DRAFT 1ST AUTO CHOICE HTA AUTO 59/150 PSA 9
/150 · PSA 9 · takes offers · listed 215d
Waiting on sales · 1 other thing in the way
—
modeled ~$149.50
NEEDS EVIDENCE
SEAN GAMBLE 2025 BOWMAN CHROME DRAFT 1ST AUTO CHOICE HTA AUTO 59/150 PSA 9
/150 · PSA 9 · takes offers · listed 215d
Waiting on sales · 1 other thing in the way
—
modeled ~$149.50
NEEDS EVIDENCE
2025 BOWMAN DRAFT CHROME PROSPECT AUTO #CPA-SG SEAN GAMBLE GOLD INK /15 PSA 10
/15 · PSA 10 · takes offers · listed 3d
Not a core card · 2 other things in the way
Identity uncertain — whether this is a true 1st Bowman
$2218.00
no sold price
NEEDS EVIDENCE
Sean Gamble 2025 Bowman Draft HTA Choice Refractor Chrome 1st Auto /150 PSA 10
/150 · PSA 10 · takes offers · listed 51d
Evidence still thin · 2 other things in the way
$305.99
sold $117
PASS
2025 Bowman Draft Chrome 1st Sean Gamble Prospect Gold Ink Auto #9/15 SSP
/15 · raw · condition not stated · takes offers · listed 4d
Evidence still thin · 2 other things in the way
Data stale — Last confirmed live 61h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$1229.28
modeled $40.50–120
PASS
What the same money buys today
Nothing of his is worth buying right now. These live cards from other players are the ones we rate as a buy or a watch at the same budget — not a view on Sean Gamble, just what the money can do today.
- Pedro Ramírezbase$35.94Watch14% under fair value
Compared within $18.00–$37.79, about what his own cheapest card costs. Ranked on the price-blind investment score among the 60 live listings we had scored — a read on what we scanned, not on the whole market.
Your research
Private to you. What you are waiting for, and why — so next time you open this page you do not have to remember.
Your target
The price you are waiting for, and why. Private to you.
Your notes
Sign in to keep your research — private notes on what you are watching and why.
The evidence
Everything the reading above is built on. Open whichever part you want to check.
The parallel ladder5 versions of his cards in raw autos, each priced off its own confirmed sales
Every version of his cards we can see, base to 1/1. Each rung is priced off its own confirmed sales — a rung nothing has verifiably sold at shows no value rather than borrowing a neighbour's.
Showing Raw autos.
NO CLEAR SWEET SPOT
No rung of his has a confirmed sale behind it, so there is no price to compare any step against.
- BaseTHIN EVIDENCE
Listed at $35.99, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $35.99 live
- Scarcity
- unnumbered
- Trades
- no sales
- Premium
- —
- Aqua Lava Refractor /250THIN EVIDENCE
Listed at $104.99, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $104.99 live
- Scarcity
- 199 made
- Trades
- no sales
- Premium
- +192%
Premium from asking prices, not sales - Green Refractor /99THIN EVIDENCE
Listed at $296.49, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $296.49 live
- Scarcity
- 99 made
- Trades
- no sales
- Premium
- +182%
Premium from asking prices, not sales - Gold Wave Refractor /50THIN EVIDENCE
Listed at $346.50, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $346.50 live
- Scarcity
- 50 made
- Trades
- no sales
- Premium
- +17%
Premium from asking prices, not sales - Gold /25 and underTHIN EVIDENCE
Listed at $1229.28, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $1229.28 live
- Scarcity
- 15 made
- Trades
- no sales
- Premium
- +255%
Premium from asking prices, not sales
5 listings sit in a different grade class or auto status and is kept off this ladder — a slabbed sale is not evidence about a raw card.
What he is good atSkills 52 on the 20–80 scale, against 530 hitters at Low-A
What he is good at
skills overall 52 / 80
On the 20–80 scale every scouting report uses: 50 is average, and every 10 points is one standard deviation. Measured against 530 hitters at Low-A — measured against real players at the same level right now — not a scout's projection of what he becomes.
Contact
Can he hit it?
49
average · better than 48% at his level
26.0% K
strikeout rate, inverted — lower means more bat-to-ball
Power
Can he hit it hard?
48
average · better than 44% at his level
.103 ISO
isolated power — slugging minus batting average, so hits that go for extra bases
Plate discipline
Does he pick his pitch?
50
average · better than 50% at his level
11.6% BB
walk rate — higher means he makes pitchers come to him
Speed
Can he run?
60
plus · better than 84% at his level
46 SB per 600 PA
stolen bases per full season of plate appearances
Production
Is it showing up in the box score?
45
below average · better than 32% at his level · the result, not a skill
.625 OPS
on-base plus slugging — the result, which carries the luck as well as the skill
Age for the level
Is he doing it young?
60
plus · better than 83% at his level · context, not a skill
+1.0y vs his level
years younger than the median player at his level — positive is young for the level
The overall figure averages the 4 skill rows only. The box-score row and the age row are shown but deliberately left out of it — one is the result those skills produced, and the other is not a skill at all.
The argument
skills at the 57th percentile of the cohort, production at the 32th — his tools run further ahead of his results than 89% of the players he is measured against.
The market prices the stat line, and his is behind what he is doing. That is where a card is cheap for a reason that can change.
How this is read: his skills average 57 and his production sits at 32, a gap of +25. That gap on its own means little — an average of several percentiles always sits nearer the middle than a single one — so it is ranked against the same figure computed the same way for the 529 players at his level we hold a full profile for, where it lands at the 89th percentile.
Will he get there?
Long shot 3.5 / 10
- nothing stands out either way
This is an ordering score, not a percentage. We hold no outcome data and have run no backtest, so “a 93% chance of reaching the majors” would be a number we made up and you then spent money on. Built on 100% of what it wants to know.
How he is playingThe Low-A line, and how it compares with last season
Hover any stat to see what it means. How each compares with the 530 other hitters at his level is graded in "What he is good at".
PA
457
AVG
.206
OBP
.316
SLG
.309
OPS
.625
better than 32%
HR
6
SB
35
BB%
11.6
K%
26.0
What his cards have sold forno completed sales logged yet
Real completed sales only — nothing here is an estimate. These come from the scan: it asks eBay about listings it has already seen, and one that ends at a fixed price is recorded as a sale. That builds up over days. You can add one by hand below if you happen to know it, but you are not meant to be the price database.
No sales logged yet. We need at least two to draw a line, and about five spread over a month before the numbers mean much. Add sales you find using the button below.
The whole live market24 listed · 24 eBay-verified · 18 not shown above
- Listings
- 24
- Lowest seen
- $35.99
- Median ask
- $301.24
- Cheapest 1st auto
- $253.95
- Cheapest numbered 1st auto
- $253.95
24 eBay-verified
Latest eBay verification: 14 hours ago.
The other 18 cards
- —2025 Bowman Draft Sean Gamble Chrome Auto Sparkle Refractor 1st #/71 PASS
- $296.492025 Bowman Draft Sean Gamble Chrome Auto Green Refractor /99 1st ProspectPASS
- —Sean Gamble 1st Bowman True Green On-Card Auto /99 🖋 2025 Bowman Chrome #CPA-SGPASS
- —Sean Gamble 2025 Bowman 1st Chrome Draft Blue Refractor Auto /150PASS
- —2025 Bowman Draft Sean Gamble Chrome Auto Refractor 1st Prospect #/499 Royals JTPASS
- —2025 Bowman Draft Sean Gamble Chrome Auto Refractor 1st #/499 RoyalsPASS
- $346.502025 Bowman Draft - Sean Gamble Gold Wave Refractor 1st Bowman Auto /50 CPA-SGPASS
- —Sean Gamble 2025 1st Bowman Auto Gold Wave /50 Au Rc Royals (CPA-SG)PASS
- —Bowman Draft 2025 Sean Gamble Royals 1st Bowman Auto #CPA-SG Gold Wave /50PASS
- $104.992025 Bowman Draft Sean Gamble 1st Aqua Lava Refractor Auto /199 RoyalsPASS
- —2025 Bowman 1st Sean Gamble Auto Gold Wave Refractor /50 GEM 💥💣🔥💎👀PASS
- $35.99SEAN GAMBLE 2025 BOWMAN DRAFT CHROME PROSPECT AUTOGRAPHS AUTO KANSAS CITY ROYALSPASS
- —Sean Gamble 2025 1st Bowman Chrome Auto #CPA-SG RoyalsPASS
- —Sean Gamble 2025 1st Bowman Chrome Auto #CPA-SG RoyalsPASS
- —Sean Gamble 2025 1st Bowman Chrome Auto #CPA-SG RoyalsPASS
- —2025 Bowman Chrome Draft Sean Gamble Prospects Autograph #CPA-SG Royals 1st AutoPASS
- —2025 Bowman Draft SEAN GAMBLE 1st Chrome Base On Card Auto #CPA-SG RoyalsPASS
- —2025 Bowman Draft SEAN GAMBLE 1st Chrome Base On Card Auto #CPA-SG RoyalsPASS
What this page is missing1 thing we do not hold for him
What this page is missing
Everything above is built from what we actually hold. These are the gaps, so you know which parts of the argument are thin rather than wondering why a panel is quiet.
- We do not have a sold price in 90 days — add one and the whole price side fills in.
Worth reading for this player
- What a modeled fair value means — at least one value on this page was modeled rather than taken from a sale
- Parallel scarcity calculator — numbered parallels of his cards are in play, and print run drives the premium
- Best Offer calculator — at least one of his live listings accepts offers
- Certified vs aftermarket autographs — signed cards of his are listed, and the two kinds are not worth the same
- Parallels and print runs — his market includes numbered parallels, which are priced off the print run