JB Middleton
SP · Fresno Grizzlies · Low-A · 22.0y · #5834 of 7,922 we rate
- The player
- LONG SHOT
- The market
- Untested
- What to do
- Wait
20 out of 100 — our all-round score from the season line, his tools against the level, and how young he is for it.
33 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 2025 Bowman Chrome JB Middleton 1st Bowman…. Player not there yet.
Our take
Long-shot prospect, untested market.
JB Middleton scores 20 out of 100 (#5834 of the 7,922 we score), and the case rests on one thing: what the hobby pays up for — SP sells at a discount at equal production.
Nothing of his has verifiably sold in 90 days and there is no benchmark price, so we will not tell you what his cards are worth.
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: no professional sample — we hold no season line for him, so every player-side reading on this page is missing its main input.
The signal
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.
What the hobby pays up for
SP sells at a discount at equal production.
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
No professional sample
We hold no season line for him, so every player-side reading on this page is missing its main input.
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 sellers describe it, not from a checklist. The identity is likely, not established.
What the hobby pays for him
Benchmark card: 2025 Bowman Chrome 1st Auto CPA-JM — raw, base, unnumbered.
Described by 4 independent sellers — observed, not checklist-verified.
No price on this card yet
sales exist for this player, none on the benchmark card 4 copies are listed right now — asking prices are supply, never evidence of what it sells for.
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 Chrome 1st Auto CPA-JM
Raw base 1st Bowman Chrome Auto
The canonical prospect vehicle — every player who has one is compared on it. Identified from 4 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 2025 Bowman Draft Chrome Prospect JB Middleton #CPA-JM Auto 1sa3 at $19.04, 535% over the $2–3 that copies of it have confirmed sold in. Nothing of his is currently below its own sold band.
That card at or under $2 delivered would be at the bottom of what it has actually sold for.
What would make this a buy
- Evidence still thin
- Player not there yet
What is for sale right now
33 cards of his are listed · 0 of the 33 we can judge clear the investment bar. These are the 6 worth looking at, best first; the other 27 are under "The whole live market".
2025 Bowman Draft JB Middleton 1st Chrome Gold Wave Auto /50 - PSA 10 - POP 1
/50 · PSA 10 · takes offers · listed 113d
Player not there yet · 1 other thing in the way
$364.99
no sold price
WATCH
2025 Bowman Chrome #CPA-JM JB Middleton Colorado Rockies 1st Auto
base · raw · condition not stated · takes offers · listed 34d
Player not there yet · 1 other thing in the way
Data stale — Last confirmed live 81h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$6.07
modeled $5.38–8.33
WATCH
2025 Bowman Chrome JB Middleton 1st Bowman Auto Rockies CPA-JM
base · raw · condition not stated · takes offers · listed 30d
Player not there yet · 1 other thing in the way
Data stale — Last confirmed live 81h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
—
modeled $5.38–8.33
PASS
JB MIDDLETON 2025 BOWMAN DRAFT CHROME PURPLE REF AUTO RC /250 PSA 9/10 POP 11 BA
/250 · PSA 9 · takes offers · listed 7d
Not a core card · 3 other things in the way
Identity uncertain — whether this is a true 1st Bowman
$66.00
no sold price
WATCH
JB MIDDLETON 2025 Bowman 1st Draft #CPA-JM Chrome Prospect Auto Mojo /150
/150 · raw · condition not stated · listed 13d
Player not there yet · 2 other things in the way
Data stale — Last confirmed live 80h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$20.98
modeled $3–4.50
WATCH
JB MIDDLETON 2025 Bowman Chrome Draft 1st Aqua Refractor RC Autograph Auto #/199
/199 · raw · condition not stated · takes offers · listed 18d
Player not there yet · 2 other things in the way
Data stale — Last confirmed live 82h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
—
modeled $2.70–4.05
PASS
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 $6.07, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $6.07 live
- Scarcity
- unnumbered
- Trades
- no sales
- Premium
- —
- Mojo /150THIN EVIDENCE
Listed at $20.98, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $20.98 live
- Scarcity
- 150 made
- Trades
- no sales
- Premium
- +246%
Premium from asking prices, not sales - Orange Refractor /25 and underTHIN EVIDENCE
Listed at $120.23, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $120.23 live
- Scarcity
- 25 made
- Trades
- no sales
- Premium
- +473%
Premium from asking prices, not sales - /5 and underTHIN EVIDENCE
Listed at $371.99, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $371.99 live
- Scarcity
- 5 made
- Trades
- no sales
- Premium
- +209%
Premium from asking prices, not sales - Refractor /5 and underTHIN EVIDENCE
Listed at $373.00, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $373.00 live
- Scarcity
- 5 made
- Trades
- no sales
- Premium
- +0%
Premium from asking prices, not sales
2 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 atno percentiles against his level yet
What he is good at
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?
—
not measured for him yet
—
strikeout rate, inverted — lower means more bat-to-ball
Power
Can he hit it hard?
—
not measured for him yet
—
isolated power — slugging minus batting average, so hits that go for extra bases
Plate discipline
Does he pick his pitch?
—
not measured for him yet
—
walk rate — higher means he makes pitchers come to him
Speed
Can he run?
—
not measured for him yet
—
stolen bases per full season of plate appearances
Production
Is it showing up in the box score?
—
not measured for him yet
—
on-base plus slugging — the result, which carries the luck as well as the skill
Age for the level
Is he doing it young?
49
average · better than 45% 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
Will he get there?
Unlikely 2.9 / 10
- old for Low-A
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 86% of what it wants to know — missing production.
How he is playingno season line on file
We hold no season stat line for him. That happens when he has not played enough this year, or when the roster refresh has not reached his level.
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 market33 listed · 33 eBay-verified · 27 not shown above
- Listings
- 33
- Lowest seen
- $6.07
- Median ask
- $17.49
- Cheapest 1st auto
- $6.07
- Cheapest numbered 1st auto
- $20.98
33 eBay-verified
Latest eBay verification: 14 hours ago.
The other 27 cards
- —🔌IU 2025 BOWMAN DRAFT CHROME PROSPECT 1ST AUTO PURPLE 163/250 JB MIDDLETONPASS
- —2025 Bowman Chrome JB Middleton 1st Aqua Lava Auto /199 RockiesPASS
- —2025 Bowman Draft JB Middleton Chrome Auto Purple Refractor 1st #/250 RockiesPASS
- $120.232025 Bowman Draft Chrome Prospect Orange Refractor 12/25 JB Middleton Auto j8oPASS
- $373.00JB Middleton 2025 Bowman Draft 1st Snack Pack Auto Sunflower Seeds Refractor 3/5PASS
- $13.392025 Bowman Chrome 1st Prospect Autographs JB Middleton Auto Colorado RockiesWATCH
- $371.992025 Bowman Draft — JB Middleton 1st Bowman SNACK PACK Auto Sunflower Seed /5PASS
- $19.992025 Bowman Chrome JB MIDDLETON 1st Autograph Colorado Rockies On Card Auto RCWATCH
- $6.48JB Middleton 2025 Bowman Draft Chrome 1st Auto #CPA-JM RockiesPASS
- $10.252025 Bowman Draft Chrome 1st Prospect JB Middleton Auto Colorado Rockies #CPA-JMPASS
- $11.882025 Bowman Draft JB MIDDLETON #CPA-JM 1st Prospect Auto RockiesPASS
- $13.942025 Bowman Draft Chrome JB Middleton CPA-JM 1st Base Prospect Auto RockiesPASS
- $13.992025 BOWMAN DRAFT JB MIDDLETON CHROME 1ST AUTO COLORADO ROCKIESPASS
- $14.55JB MIDDLETON 2025 Bowman Draft Chrome 1st Bowman Auto Prospect RC - PACK FRESH!PASS
- $17.002025 Bowman Draft JB Middleton Chrome Auto 1st Prospect RockiesPASS
- $17.982025 Bowman Draft JB Middleton Chrome Auto 1st Prospect #CPA-JM RockiesPASS
- $19.042025 Bowman Draft Chrome Prospect JB Middleton #CPA-JM Auto 1sa3PASS
- —Topps 2025 Bowman Draft JB Middleton CPA-JM 1st Bowman Chrome Auto RockiesPASS
- —2025 Bowman Draft JB Middleton Chrome Prospect Auto 1st CPA-JM Colorado RockiesPASS
- —Topps 2025 Bowman Draft JB Middleton 1st Bowman Chrome Auto RC #CPA-JMPASS
- —2025 Bowman Draft JB MIDDLETON 1st RC Auto Signatures Chrome Base #CPA-JMPASS
- —2025 1st Bowman Chrome Draft #CPA-JM JB Middleton Rockies Auto Rookie Pitcher PASS
- —2025 Bowman Draft Chrome JB Middleton 1st Bowman Auto Colorado RockiesPASS
- —2025 Bowman Draft Chrome JB Middleton Auto 1ST #CPA-JM RockiesPASS
- —2025 Bowman Draft Chrome 1st RC Auto JB Middleton #CPA-JM Rockies 6th PropsectPASS
- —JB MIDDLETON RC - 1st CHROME ON CARD AUTO #CPA-JM - 2025 Bowman Draft ROCKIESPASS
- —2025 Bowman Draft Chrome JB Middleton Auto 1ST #CPA-JM RockiesPASS
What this page is missing3 things 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 season stat line — he may not have played enough yet.
- We do not have percentiles against his level — the roster refresh computes these.
- 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