Best Slowking Cards to Grade
The Slowking cards worth grading, ranked by expected profit per submission — every grade outcome weighted by how often the card actually receives it — after current grading fees. The PSA 10 best case is shown on every row but does not decide the order. Top pick: Slowking (Aquapolis) at an expected +$5,664.
Ranked by expected profit 13
| # | Card | Raw | PSA 9 | PSA 10 | Cost | Best case | Gem rate | Expected | Sample |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Expected +$5,664 per submission: 7.2% of 754 graded copies came back PSA 10 ($65,000), and a PSA 9 ($4,250) still clears the $3,921 you have in it. Confidence high on that sample. | $252 | $4,250 | $65,000 | $3,669 | +$61,079 | 7.2% | +$5,664 | 754 high |
| 2 | Expected +$1,857 per submission: 2% of 2,673 graded copies came back PSA 10 ($68,625), and a PSA 9 ($3,699) still clears the $4,205 you have in it. Confidence high on that sample. | $500 | $3,699 | $68,625 | $3,705 | +$64,420 | 2% | +$1,857 | 2,673 high |
| 3 | Expected +$990 per submission: 4.4% of 781 graded copies came back PSA 10 ($14,000), and a PSA 9 ($2,001) still clears the $1,239 you have in it. Confidence high on that sample. | $80 | $2,001 | $14,000 | $1,159 | +$12,761 | 4.4% | +$990 | 781 high |
| 4 | Expected +$895 per submission: 7.4% of 257 graded copies came back PSA 10 ($11,110), and a PSA 9 ($525) still clears the $1,185 you have in it. Confidence high on that sample. | $55 | $525 | $11,110 | $1,130 | +$9,925 | 7.4% | +$895 | 257 high |
| 5 | Expected +$338 per submission: 14% of 485 graded copies came back PSA 10 ($2,291), and a PSA 9 ($375) still clears the $334 you have in it. Confidence high on that sample. | $92 | $375 | $2,291 | $242 | +$1,957 | 14% | +$338 | 485 high |
| 6 | Expected +$93 per submission: 23% of 183 graded copies came back PSA 10 ($408), and a PSA 9 ($300) still clears the $124 you have in it. Confidence high on that sample. | $40 | $300 | $408 | $84 | +$284 | 23% | +$93 | 183 high |
| 7 | Expected +$23 per submission: 65.7% of 4,996 graded copies came back PSA 10 ($264), and only a PSA 10 covers the $188 you have in it — a 9 loses money. Confidence high on that sample. | $105 | $115 | $264 | $83 | +$76 | 65.7% | +$23 | 4,996 high |
| 8 | Expected +$4 per submission: 23.1% of 26 graded copies came back PSA 10 ($154), and a PSA 9 ($95) still clears the $89 you have in it. Confidence low on that sample. | $7 | $95 | $154 | $82 | +$65 | 23.1% | +$4 | 26 low |
| 9 | Expected +$2 per submission: 42.4% of 144 graded copies came back PSA 10 ($299), and only a PSA 10 covers the $159 you have in it — a 9 loses money. Confidence high on that sample. | $76 | $65 | $299 | $83 | +$140 | 42.4% | +$2 | 144 high |
| 10 | Expected loss −$12 per submission: 74.9% of 323 graded copies came back PSA 10 ($100), and only a PSA 10 covers the $93 you have in it — a 9 loses money. Confidence high on that sample. | $12 | $28 | $100 | $81 | +$7 | 74.9% | −$12 | 323 high |
| 11 | Expected loss −$20 per submission: 0.3% of 3,202 graded copies came back PSA 10 ($5,174), and a PSA 9 ($510) still clears the $761 you have in it. Confidence high on that sample. | $90 | $510 | $5,174 | $671 | +$4,413 | 0.3% | −$20 | 3,202 high |
| 12 | Expected loss −$25 per submission: 41.9% of 688 graded copies came back PSA 10 ($134), and only a PSA 10 covers the $91 you have in it — a 9 loses money. Confidence high on that sample. | $10 | $18 | $134 | $81 | +$43 | 41.9% | −$25 | 688 high |
| 13 | Expected loss −$37 per submission: 17.6% of 17 graded copies came back PSA 10 ($112), and only a PSA 10 covers the $86 you have in it — a 9 loses money. Confidence low on that sample. | $5 | $50 | $112 | $81 | +$25 | 17.6% | −$37 | 17 low |
Expected = every grade outcome weighted by its share of the card's graded population, minus the raw price and the grading cost (PSA tier fee for the graded value plus ~$20 round-trip shipping, fees as of 2026-09-26). Best case is the PSA 10 leg alone. Gem rates come from a self-selected population — collectors grade their cleanest copies — so read them as an upper bound. Raw is a blended market price, not a sale of your copy. Full method and filters on the grading index.
How to read the Slowking ranking
Every Slowking card listed here clears one bar: its PSA 10 price beats its raw price by more than the cost of grading it. 13 Slowking printings pass. 13 of them (100%) have a gem-rate sample of at least ten graded copies in the population reports, and 9 of those keep a positive expected value once every grade outcome is weighted by how often the card actually receives it.
The order is expected profit, not the PSA 10 best case, which rewards the widest raw-to-gem gap whether the card gems one time in two or one in fifty. Here the top row, the Slowking from Aquapolis, gems 7.2% of the time across 754 graded copies: +$5,664 is what a long run of submissions would average, $61,079 is what one lucky copy returns.
The median gem rate across the sampled Slowking cards is 17.6%. Roughly one submitted copy in 6 came back PSA 10, and most rows here still cover raw price plus fee at PSA 9, so the PSA 9 price does most of the work. Of the 13 ranked cards, 8 still cover raw price plus fee at PSA 9, 5 need a 10 to break even and 4 lose money on expectation. 11 rest on a hundred or more graded copies.
Before you submit a Slowking card
Grading pays on condition. The four things every grader scores — centering, corners, edges and surface — can be checked at home before paying a fee, and a copy that is visibly off-centre or has a whitened corner will not gem whatever the population says. Those gem rates come from a self-selected population of clean copies, so a random copy does worse.
The cost column assumes a PSA submission at the tier covering the card's PSA 10 value, fees as of 2026-09-26, and raw is CardTrack's blended near-mint price, not a sale of your copy: pay more, or hold a lighter copy, and the break-even moves against you. Test a card with your own numbers in the ROI calculator, see the printings that fail the bar on the Slowking card list, or see how gem-mint premiums run across the whole catalogue on the PSA premium index.