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Hammerin' Harper #1b Bryce Harper 2023 Garbage Pail Kids x MLB Series 3 · PSA 10
Scarcity8 parallels: print runs and odds
PSA pop26
All grades · value and PSA population
🛒 4 listings on eBay now RAW
RAW (UNGRADED) — NOT A GRADED VALUE
$33
37 raw sales used for this value
view raw sales →
Front
Back
Price history · PSA 10
On-the-record sales go back as far as PSA reports them — late 2017 for GPK — plus eBay-tracked and raw sales as they land.
🗑️ The Garbologist says…
Too Few Recent Sales
Straight from the Garbologist's clipboard:
- 15 recorded sales · 2 in the last year · trades every few months · high-confidence sample.
- The recent trail reads $90 → $66 → $110 → $100 → $154 — choppy but broadly rangebound.
- Heads up: the last recorded sale ($154 on 2026-03-24) landed 21% below our current value — weigh it as a single data point.
- Census check: PSA has graded 49 of this card, and only 53.1% come back a 10 — gems fairly readily.
- None
Automated analysis generated from this card’s real recorded sales and PSA population data — no opinions, no predictions guaranteed. Entertainment and research only, not financial advice.
Hammerin' Harper· Bryce Harper — across every card
Subject page →Every Hammerin' Harper card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
Only if you're confident it's a 10About 1 in 2 copies of 2023 MLB Series 3 cards get a 10, and a 9 is worth $99 — after the $92 cost that is less than the $33 raw copy.
Expected value if graded$47 (after $92 all-in cost)
Raw value today$33 (from 37 raw sales)
VerdictOnly if you're confident it's a 10
Break-even: you need about a 36% chance of a PSA 10 (2023 MLB Series 3 cards: 46%).
Chance of a PSA 10
46%
2023 MLB Series 3 cards · 2,471 graded
PSA 10 value
$195
today · ~$206 by Feb 12, 2027
PSA 9 value
$94
today · ~$99 by Feb 12, 2027
All-in cost
$92
PSA fee $60 + shipping both ways $32
How these numbers work
All-in cost $92: PSA Standard tier fee $60 per card, insured shipping to PSA ~$12, PSA insured return shipping ~$20. Sending it to your PSA Vault instead skips return shipping (vault intake and storage are free): ~$72 all-in, so a graded copy would net ~$67.
Grade odds (2023 MLB Series 3 cards, 2,471 PSA-graded): 10 · 46%, 9 · 34%, 8 · 12%, 7 or lower · 8%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 12, 2027): today's values +5% (half the set's 3-month rise of 11%, capped at +10%).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.
Grade odds (2023 MLB Series 3 cards, 2,471 PSA-graded): 10 · 46%, 9 · 34%, 8 · 12%, 7 or lower · 8%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 12, 2027): today's values +5% (half the set's 3-month rise of 11%, capped at +10%).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.
Hammerin' Harper #1b Bryce Harper Garbage Pail Kids value by grade
| Grade | Value | Sales | PSA pop |
|---|---|---|---|
| PSA 10 | $195 | 15 | 26 |
| PSA 9 | $94 | 9 | 12 |
| PSA 8 | $55 | 1 | 5 |
| PSA 7 | $39 est. | 0 | 3 |
| PSA 6 | $31 est. | 0 | 1 |
| PSA 5 | $21 est. | 0 | 2 |
Every grade of this card on one page. Est. = no sale at that grade yet. Tap a grade above to switch the whole page to it.
