Impostor Professor Oak #73, Shadowless, Base Set
- Card number: #73/102
- ·Rarity: Rare
- ·Finish: Non-Holo
A PSA 9 Impostor Professor Oak #73 Shadowless from Base Set has a TCGBerg fair value of $99 as of Nov 14, 2026. TCGBerg has recorded 21 PSA 9 sales of this card, the latest on Oct 19, 2026. PSA has graded 143 copies at PSA 9.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 9
- 143
- Market cap
- $14.2K
- Volatility
- 1.8%
- YTD
- ↑ 85.3%
- Sales evidence
- Strong
TCGBerg fair value · PSA 9
$99
Price history
Weekly fair value over time, plus a confidence band around it: how precisely we can pin the value, which tightens as more sales confirm it. Dots mark individual sales, snapped to their week: red when above fair value (a premium), green when below (a deal), hollow when flagged as an outlier. Switch the active grade with the selector above.Weekly fair value for PSA 9. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales. Confidence band: how precisely we can pin the fair value. It widens when sales scatter and narrows as more sales back the value up. The dots show the actual sale prices.
What the evidence says
The last PSA 9 sale, $92 on Oct 19, 2026, sits 6.7% below the $99 fair value. The value weighs 21 PSA 9 sales from the past year, not the latest one alone. Its confidence band runs from $91 to $108. A PSA 10 ($391) is worth 3.9 times a PSA 9 ($99). Over the past 30 days the PSA 9 value has risen 7.7%.
TCGBerg fair value by grade
Side-by-side comparison of value across every grade and ungraded condition we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis. Solid bars are the TCGBerg fair value, modelled from recorded sales. Hatched bars are the latest market price instead, shown for ungraded conditions that trade too rarely for us to price one honestly.Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
- Raw NM$24Ungraded · market price
- Raw LP$12Ungraded · market price
- Raw MP$7.08Ungraded · market price
- Raw HP$5.23Ungraded · market price
- Raw Damaged$4.59Ungraded · market price
Behind the scenes
How the published fair value for this grade was produced: the sales it rests on, how they were put together, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.What goes into this price, and how much we know.
Recent sales
20 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Oct 19, 2026 | PSA9 | eBay | $92 | below fair value by -5.7% |
| Oct 17, 2026 | PSA9 | eBay | $140 | above fair value by +38.6% |
| Oct 3, 2026 | PSA10 | eBay | $320 | below fair value by -12.0% |
| Sep 28, 2026 | PSA9 | eBay | $133 | above fair value by +43.8% |
| Sep 10, 2026 | PSA9 | eBay | $110 | above fair value by +37.1% |
- $92Oct 19, 2026 · via eBayPSA9↓below fair value by 5.7%
- $140Oct 17, 2026 · via eBayPSA9↑above fair value by 38.6%
- $320Oct 3, 2026 · via eBayPSA10↓below fair value by 12.0%
- $133Sep 28, 2026 · via eBayPSA9↑above fair value by 43.8%
- $110Sep 10, 2026 · via eBayPSA9↑above fair value by 37.1%
| Sep 1, 2026 | PSA10 | eBay | $320 | below fair value by -14.4% |
| Aug 23, 2026 | PSA9 | eBay | $70 | below fair value by -4.5% |
| Aug 7, 2026 | PSA7 | eBay | $35 | below fair value by -13.8% |
- $320PSA10↓below fair value by 14.4%
- $70PSA9↓below fair value by 4.5%
- $35PSA7↓below fair value by 13.8%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 48.5% below fair value
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- CGC6$291d ↑8.0%7d -30d -
- Pop
- 1
- Mcap
- -
- Evidence
- Sparse
- Last
- -
- CGC Gem Mint 10$1251d -7d -30d -
- Pop
- 12
- Mcap
- $1.5K
- Evidence
- Sparse
- Last
- $98
- PSA10$3911d ↑0.1%7d ↑0.5%30d ↑3.1%
- Pop
- 88
- Mcap
- $34.4K
- Evidence
- Moderate
- Last
- $320
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGC6 | $29 | 1 | - | ↑up 8.0% | - | - | - | Sparse | - | |
| CGC Gem Mint 10 | $125 | 12 | $1.5K | - | - | - | - | Sparse | $9812mo ago | |
| PSA10 | $391 | 88 | $34.4K | ↑up 0.1% | ↑up 0.5% | ↑up 3.1% | ↓down 8.5% | Moderate | $3201mo ago | |
| PSA9 | $99 | 143 | $14.2K | ↑up 0.7% | ↑up 1.4% | ↑up 7.7% | ↑up 31.7% | Strong | $924w ago | |
| PSA8 | $74 | 74 | $5.5K | ↑up 0.1% | ↑up 0.4% | ↓down 9.9% | ↑up 11.8% | Limited | $754mo ago | |
| PSA7 | $51 | 53 | $2.7K | 0.0% | ↑up 0.1% | ↑up 1.2% | ↑up 22.8% | Limited | $353mo ago | |
| PSA6 | $30 | 31 | $936 | 0.0% | ↑up 0.3% | ↓down 3.1% | ↓down 8.1% | Sparse | $2012mo ago | |
| PSA5 | $30 | 18 | - | 0.0% | ↑up 0.3% | ↓down 3.1% | ↓down 8.1% | Sparse | $356mo ago | |
| PSA4 | $42 | 13 | - | 0.0% | 0.0% | ↑up 27.6% | ↑up 32.6% | Limited | $218mo ago | |
| PSA3 | $17 | 2 | - | 0.0% | ↓down 1.1% | ↓down 2.6% | ↑up 1.2% | Sparse | - | |
| PSA2 | $17 | 1 | - | ↓down 0.1% | ↓down 1.1% | ↓down 2.6% | ↑up 1.2% | Sparse | $302y ago | |
| Raw | $24 | - | - | 0.0% | ↓down 14.2% | ↓down 13.5% | ↑up 8.7% | - | - |
Graded population report
How Impostor Professor Oak's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. These are recorded graded copies, not the total print run. A smaller population alone does not establish a price premium.541 graded copies of Impostor Professor Oak Shadowless across 25 grades. The selected grade is highlighted.
PSA 9 makes up 26% of graded copies: 143 of 541. It’s the most common grade for this card.
Analysis
Impostor Professor Oak - Shadowless Normal at PSA 10 carries a TCGBerg fair value of $391 as of 2026-11-14. We track a TCGBerg fair value across 11 grades from Base Set, from PSA 2 up to PSA 10. A graded population of 88 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on moderate sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 3.1%.