
Hyeseong Kim
SS · Triple-A · 27.0y · #5156 of 7,922 we rate
- The player
- LONG SHOT
- The market
- Untested
- What to do
- Watch
26 out of 100 — our all-round score from the season line, his tools against the level, and how young he is for it.
1 card of his is listed and nothing comparable has verifiably sold, so we will not tell you whether the asks are fair.
Something about this card rules it out no matter the price.
Our take
Long-shot prospect, untested market.
Hyeseong Kim scores 26 out of 100 (#5156 of the 7,922 we score), and the case rests on one thing: speed: above average — 22 SB per 600 PA — stolen bases per full season of plate appearances Better than 73% at his level.
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: 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
Power: below average
.084 ISO — isolated power — slugging minus batting average, so hits that go for extra bases
OPS slipping
.793 last season to .657 this one.
Power slipping
.188 last season to .084 this one.
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: above average
22 SB per 600 PA — stolen bases per full season of plate appearances Better than 73% at his level.
Premium position
SS — the bat does not have to carry the whole profile.
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.
Modeled value only
The fair values shown for his live cards are arithmetic from related evidence, not confirmed sales of the exact card.
What the hobby pays for him
A benchmark is the one standardized card we track a player's market on, so every player's price means the same thing.
Benchmark not yet established — no 1st Bowman vehicle observed for this player. Until one exists, only his individual listings can be judged.
The card that matters
A card-quality answer, not a price one. It does not change when a seller changes their mind.
Canonical card not established — We have not assigned him a benchmark card yet, so there is no canonical answer to give. Until one exists, only his individual listings can be judged.
Best value right now
Where the money would go today, which is frequently a lesser card than the one above — or nowhere.
Insufficient market evidence
No live ask and no confirmed sale on any version of his cards, so there is nothing here to call good or bad value.
What would make this a buy
- On his best-priced card: not a core card.
- A promotion, or a stretch that lifts the season line, would move the player side of this.
What is for sale right now
1 card of his is listed · 0 of the 1 we can judge clear the investment bar. These are the 1 worth looking at, best first.
2025 Bowman Chrome Hyeseong Kim Superfractor 1/1 Auto Rookie Melt Mashers
1/1 · raw · condition not stated · listed 76d
Not a core card · 3 other things in the way
Identity uncertain — whether this is a true 1st Bowman
$2720.00
modeled ~$9.49
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 Hyeseong Kim, just what the money can do today.
- Walker JenkinsSapphire · /25$2809.99Watch
- Walker JenkinsTrue Green · /99$2007.00Watch
- Walker JenkinsSapphire Refractor · /50$2510.00Watch
Compared within $1360.00–$2856.00, 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 ladder1 version 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.
- Superfractor 1/1THIN EVIDENCE
Listed at $2720.00, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $2720.00 live
- Scarcity
- 1 made
- Trades
- no sales
- Premium
- —
What he is good atSkills 47 on the 20–80 scale, against 728 hitters at Triple-A
What he is good at
skills overall 47 / 80
On the 20–80 scale every scouting report uses: 50 is average, and every 10 points is one standard deviation. Measured against 728 hitters at Triple-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?
45
below average · better than 31% at his level
26.1% K
strikeout rate, inverted — lower means more bat-to-ball
Power
Can he hit it hard?
42
below average · better than 20% at his level
.084 ISO
isolated power — slugging minus batting average, so hits that go for extra bases
Plate discipline
Does he pick his pitch?
46
below average · better than 35% at his level
9.2% BB
walk rate — higher means he makes pitchers come to him
Speed
Can he run?
56
above average · better than 73% at his level
22 SB per 600 PA
stolen bases per full season of plate appearances
Production
Is it showing up in the box score?
44
below average · better than 28% at his level · the result, not a skill
.657 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?
48
average · better than 44% 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 40th percentile of the cohort, production at the 28th — the gap between the two is ordinary for this level.
Nothing to arbitrage here: he is producing about what his skills say he should. Judge the card on price and the player on the grades.
How this is read: his skills average 40 and his production sits at 28, a gap of +12. 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 726 players at his level we hold a full profile for, where it lands at the 66th percentile.
Will he get there?
Real chance 5.1 / 10
- already at Triple-A
- old for Triple-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 100% of what it wants to know.
How he is playingThe Triple-A line, and how it compares with last season
Hover any stat to see what it means. How each compares with the 728 other hitters at his level is graded in "What he is good at".
PA
295
AVG
.252
OBP
.321
SLG
.336
OPS
.657
better than 28%
HR
3
SB
11
BB%
9.2
K%
26.1
Is this player getting better?
Down from .793 to .657 OPS this season.
Still at Triple-A, the same level as last season.
OPS
.793▼.657
Power
.188▼.084
Walks
7.7%▲9.2%
Strikeouts
24.9%▲26.1%
Last season, 169 times at bat. Two seasons that already happened. Nothing here is a prediction.
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 market1 listed · 1 eBay-verified
- Listings
- 1
- Lowest live
- $2720.00
- Median ask
- $2720.00
- Cheapest 1st auto
- —
- Cheapest numbered 1st auto
- —
1 eBay-verified
Latest eBay verification: 7 hours ago.
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
- Certified vs aftermarket autographs — signed cards of his are listed, and the two kinds are not worth the same