Impostor Professor Oak #73, Unlimited, Base Set
- Card number: #73/102
- ·Rarity: Rare
- ·Finish: Non-Holo
A PSA 8 Impostor Professor Oak #73 Unlimited from Base Set has a TCGBerg fair value of $46 as of Nov 15, 2026. TCGBerg has recorded 15 PSA 8 sales of this card, the latest on Sep 27, 2026. PSA has graded 196 copies at PSA 8.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 8
- 196
- Market cap
- $8.9K
- Volatility
- 1.2%
- YTD
- ↑ 48.9%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 8
$46
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 8. 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 8 sale, $59 on Sep 27, 2026, sits 30.3% above the $46 fair value. The value weighs 15 PSA 8 sales from the past year, not the latest one alone. The latest sale ran above the recent run: the last 5 PSA 8 sales averaged $49, within 6.8% of the value. Its confidence band runs from $42 to $49. A PSA 10 ($372) is worth 5.2 times a PSA 9 ($71). Over the past 30 days the PSA 8 value has risen 4.9%.
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$6.85Ungraded · TCGBerg fair value
- Raw LP$4.14Ungraded · TCGBerg fair value
- Raw MP$2.54Ungraded · TCGBerg fair value
- Raw HP$1.90Ungraded · TCGBerg fair value
- Raw Damaged$1.07Ungraded · TCGBerg fair value
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 |
|---|---|---|---|---|
| Nov 13, 2026 | Raw | tcgplayer | $4.97 | below fair value by -27.4% |
| Nov 13, 2026 | Raw | tcgplayer | $6.37 | below fair value by -7.0% |
| Nov 12, 2026 | Raw | tcgplayer | $7.47 | above fair value by +9.1% |
| Nov 6, 2026 | Raw | tcgplayer | $12 | above fair value by +72.0% |
| Nov 5, 2026 | Raw | tcgplayer | $12 | above fair value by +72.0% |
- $4.97Nov 13, 2026 · via tcgplayerRaw↓below fair value by 27.4%
- $6.37Nov 13, 2026 · via tcgplayerRaw↓below fair value by 7.0%
- $7.47Nov 12, 2026 · via tcgplayerRaw↑above fair value by 9.1%
- $12Nov 6, 2026 · via tcgplayerRaw↑above fair value by 72.0%
- $12Nov 5, 2026 · via tcgplayerRaw↑above fair value by 72.0%
| Nov 5, 2026 | Raw | tcgplayer | $5.00 | below fair value by -28.2% |
| Nov 5, 2026 | Raw | tcgplayer | $12 | above fair value by +72.0% |
| Nov 1, 2026 | Raw | tcgplayer | $6.52 | above fair value by +0.6% |
- $5.00Raw↓below fair value by 28.2%
- $12Raw↑above fair value by 72.0%
- $6.52Raw↑above fair value by 0.6%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 28.2% 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.
- PSA10$3721d ↑0.1%7d ↑1.0%30d ↑9.8%
- Pop
- 183
- Mcap
- $68.0K
- Evidence
- Limited
- Last
- $430
- PSA9$711d ↑0.9%7d ↑1.3%30d ↓12.6%
- Pop
- 314
- Mcap
- $22.4K
- Evidence
- Moderate
- Last
- $41
- PSA8$461d ↑0.4%7d ↑1.1%30d ↑4.9%
- Pop
- 196
- Mcap
- $8.9K
- Evidence
- Moderate
- Last
- $59
| PSA10 | $372 | 183 | $68.0K | ↑up 0.1% | ↑up 1.0% | ↑up 9.8% | ↓down 3.1% | Limited | $4303w ago |
| PSA9 | $71 | 314 | $22.4K | ↑up 0.9% | ↑up 1.3% | ↓down 12.6% | ↑up 26.1% | Moderate | $413w ago |
| PSA8 | $46 | 196 | $8.9K | ↑up 0.4% | ↑up 1.1% | ↑up 4.9% | ↑up 19.7% | Moderate | $592mo ago |
| PSA7 | $29 | 104 | $3.0K | ↓down 0.1% | ↑up 3.7% | ↑up 17.7% | ↓down 9.6% | Moderate | $253w ago |
| PSA6 | $22 | 84 | $1.8K | ↑up 0.1% | ↑up 1.0% | ↓down 4.0% | ↓down 7.3% | Moderate | $153w ago |
| PSA5 | $17 | 26 | - | ↑up 0.1% | ↑up 0.8% | ↑up 7.1% | ↑up 38.1% | Limited | $153mo ago |
| PSA4 | $17 | 10 | - | 0.0% | ↑up 6.1% | ↑up 33.6% | ↑up 37.5% | Sparse | - |
| PSA3 | $17 | 7 | - | 0.0% | ↑up 6.0% | ↑up 120.0% | ↑up 136.3% | Limited | $211mo ago |
| Raw | $6.85 | - | - | - | ↓down 1.4% | ↑up 16.3% | - | Very strong | $4.972d ago |
PSA 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.924 graded copies of Impostor Professor Oak Unlimited across 8 grades. The selected grade is highlighted.
PSA 8 makes up 21% of graded copies: 196 of 924. PSA 9 is the most common grade (34%).
Analysis
Impostor Professor Oak - Unlimited Normal at PSA 10 carries a TCGBerg fair value of $372 as of 2026-11-14. We track a TCGBerg fair value across 8 grades from Base Set, from PSA 3 up to PSA 10. A graded population of 183 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on limited sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 9.8%.
