Zane Mills
SP · Knoxville Smokies · Double-A · 26.0y · #6953 of 7,922 we rate
- The player
- LONG SHOT
- The market
- Untested
- What to do
- Watch
8 out of 100 — our all-round score from the season line, his tools against the level, and how young he is for it.
36 cards of his are listed and nothing comparable has verifiably sold, so we will not tell you whether the asks are fair.
Postage alone is $1.49, and these sell for $1.76 delivered.
Our take
Long-shot prospect, untested market.
Zane Mills scores 8 out of 100 (#6953 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; 26.0 is old for a prospect card.
His core Bowman card has been selling at $1–2 off 1 confirmed sale.
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
Old for the level
-2.0y vs his level at Double-A — younger than only 24% 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.
What the hobby pays up for
SP sells at a discount at equal production; 26.0 is old for a prospect card.
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.
Age for the level
-2.0y vs his level at Double-A puts him younger than only 24% of the cohort. The clock is a real cost on a prospect card.
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 chrome auto sellers describe it, not from a checklist. The identity is likely, not established.
What the hobby pays for him
Benchmark card: 2021 Bowman Chrome 1st Auto CDA-ZM — raw, base, unnumbered.
Described by 7 independent sellers — observed, not checklist-verified.
$1.15–1.91midpoint $1.53
Evidence limited· 1 salemost recent 2026-08-24 · 12 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.
2021 Bowman Chrome 1st Auto CDA-ZM
Raw base 1st Bowman Chrome Auto
The canonical prospect vehicle — every player who has one is compared on it. Identified from 7 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 2021 Bowman Draft Chrome Zane Mills 1st Auto at $17.98, 1075% over the $1.53 that copies of it have confirmed sold in. Nothing of his is currently below its own sold band.
That card at or under $1.53 delivered would be at the bottom of what it has actually sold for.
What would make this a buy
- On his best-priced card: past the window.
- A promotion, or a stretch that lifts the season line, would move the player side of this.
What is for sale right now
36 cards of his are listed · 0 of the 36 we can judge clear the investment bar. These are the 6 worth looking at, best first; the other 30 are under "The whole live market".
2021 Bowman Draft Baseball Chrome 1st Refractor Auto 159/499 - ZANE MILLS -
/499 · raw · condition not stated · takes offers · listed 1475d
Past the window · 3 other things in the way
$4.48
modeled $0.79–3.08
PASS
2021 Bowman Draft Chrome 1st Auto Zane Mills #CDA-ZM Cardinals NM
base · raw · takes offers · listed 807d
Past the window · 3 other things in the way
$5.24
sold $1.53
PASS
2021 Bowman Chrome Zane Mills 1st Auto St Louis Cardinals #CDA-ZM
base · raw · condition not stated · listed 67d
Past the window · 3 other things in the way
Data stale — Last confirmed live 56h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$3.29
sold $1.53
PASS
2021 Bowman Chrome #CDA-ZM Zane Mills 1st Prospect Auto St Louis Cardinals
base · raw · condition not stated · takes offers · listed 637d
Past the window · 3 other things in the way
$4.48
sold $1.53
PASS
Zane Mills 2021 Bowman Chrome 1st Auto #CDA-ZM Auto St Louis Cardinals
base · raw · condition not stated · listed 775d
Past the window · 3 other things in the way
Data stale — Last confirmed live 56h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$7.99
sold $1.53
PASS
ZANE MILLS 2021 Bowman Draft Chrome Autograph #CDA-ZM Rookie 1st RC AUTO
base · raw · condition not stated · listed 1069d
Past the window · 3 other things in the way
Data stale — Last confirmed live 56h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$7.99
sold $1.53
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 ladder4 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 $3.29, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $3.29 live
- Scarcity
- unnumbered
- Trades
- no sales
- Premium
- —
- Refractor /499THIN EVIDENCE
Listed at $4.48, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $4.48 live
- Scarcity
- 499 made
- Trades
- no sales
- Premium
- +36%
Premium from asking prices, not sales - Purple Refractor /250THIN EVIDENCE
Listed at $14.89, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $14.89 live
- Scarcity
- 250 made
- Trades
- no sales
- Premium
- +232%
Premium from asking prices, not sales - Refractor /99THIN EVIDENCE
Listed at $36.87, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $36.87 live
- Scarcity
- 75 made
- Trades
- no sales
- Premium
- +148%
Premium from asking prices, not sales
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 496 hitters at Double-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?
43
below average · better than 24% at his level · context, not a skill
-2.0y vs his level
years younger than the median player at his level — positive is young for the level
Will he get there?
Long shot 4.3 / 10
- already at Double-A
- old for Double-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 market36 listed · 36 eBay-verified · 30 not shown above
- Listings
- 36
- Lowest seen
- $3.29
- Median ask
- $8.99
- Cheapest 1st auto
- $3.29
- Cheapest numbered 1st auto
- $4.48
36 eBay-verified
Latest eBay verification: 13 hours ago.
The other 30 cards
- $8.492021 BOWMAN DRAFT CHROME ZANE MILLS CDA-ZM 1ST PROSPECT AUTO ST LOUIS CARDINALSPASS
- $8.99ZANE MILLS 2021 Bowman Chrome 1st Auto #CDA-ZM STL CardinalsPASS
- $8.992021 Bowman Chrome 1st Bowman ZANE MILLS Auto #CDA-ZM St Louis CardinalsPASS
- $8.99ZANE MILLS 2021 Bowman Chrome 1st Auto #CDA-ZM St Louis CardinalsPASS
- $8.992021 Bowman Chrome 1st Bowman ZANE MILLS Auto #CDA-ZMPASS
- $8.99ZANE MILLS 2021 Bowman Chrome 1st Bowman Auto #CDA-ZM CardinalsPASS
- $9.002021 1st Bowman Chrome Zane Mills Auto St. Louis CardinalsPASS
- $9.99ZANE MILLS AUTO 1st 2021 Bowman Chrome Draft Autograph Cardinals Rookie Card RCPASS
- $11.48ZANE MILLS 1st 2021 Bowman Draft CHROME PROSPECT AUTO Cardinals #CDA-ZMPASS
- $12.982021 Bowman Draft Chrome ZANE MILLS RC 1st Auto Autograph CARDINALS CDA-ZMPASS
- $13.482021 Bowman Chrome Draft 1st auto ZANE MILLS! St. Louis CardinalsPASS
- $13.99ZANE MILLS 2021 BOWMAN CHROME 1ST RC AUTO #CDA-ZMPASS
- $14.98ZANE MILLS 2021 BOWMAN CHROME DRAFT 1ST AUTOGRAPH CARDINALS AUTOPASS
- $17.982021 Bowman Draft Chrome Zane Mills 1st AutoPASS
- —2021 Bowman Chrome 1st Zane Mills Autograph Auto #CDA-ZM Cardinals Austin LovePASS
- —Zane Mills 2021 1st Bowman Draft Chrome Prospect Base Auto - St Louis CardinalsPASS
- —Zane Mills 2021 Bowman Draft Chrome 1st Prospect AUTO CARDINALS CDA-ZMPASS
- $36.872021 Bowman Draft Chrome Pick Black Refractor 40/75 Zane Mills #CDA-ZM Auto 0wb0PASS
- $8.642021 Zane Mills Bowman Chrome 1st ON CARD AUTO 💥060/499💥 MLB Baseball CDA-ZMPASS
- $14.892021 Bowman Draft Chrome Pick Purple Refractor /250 Zane Mills #CDA-ZM Auto z7dPASS
- $15.022021 Bowman Draft Chrome Pick Purple Refractor /250 Zane Mills #CDA-ZM Auto 11tcPASS
- $19.622021 Bowman Draft Chrome Pick Purple Refractor /250 Zane Mills #CDA-ZM Auto 16s2PASS
- $25.372021 Bowman Draft Chrome Pick Purple Refractor /250 Zane Mills #CDA-ZM Auto 0s9tPASS
- —2021 Bowman Chrome Draft Refractor Zane Mills Auto /499 Cardinals #CDA-ZMPASS
- $3.49Zane Mills 2021 Bowman Draft Chrome AutoPASS
- $8.122021 Bowman Draft Chrome Draft Pick Zane Mills #CDA-ZM Auto 1n8aPASS
- $8.122021 Bowman Draft Chrome Draft Pick Zane Mills #CDA-ZM Auto 1ti6PASS
- $8.122021 Bowman Draft Chrome Draft Pick Zane Mills #CDA-ZM Auto 14sdPASS
- $8.692021 Bowman Draft Chrome Draft Pick Zane Mills #CDA-ZM Auto 1p0tPASS
- $8.692021 Bowman Draft Chrome Draft Pick Zane Mills #CDA-ZM Auto 2p7PASS
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