Professor Oak's Research #53, 1st Edition, Base Expansion Pack
Japanese edition
- Card number: #53
- ·Rarity: Uncommon
- ·Finish: Non-Holo
A PSA 10 Professor Oak's Research #53 1st Edition from Base Expansion Pack has a TCGBerg fair value of $314 as of Nov 15, 2026. It rests on 4 recorded sales, the latest on Oct 25, 2026. PSA has graded 24 copies at PSA 10. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
4 sales · latest Oct 25, 2026
- Population · PSA 10
- 24
- Market cap
- $7.5K
- Volatility
- 4.7%
- YTD
- ↑ 225.4%
- Sales evidence
- Limited
TCGBerg fair value · PSA 10
$314
Based on 4 recorded sales. Latest sale: Oct 25, 2026.
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 10. 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 10 sale, $250 on Oct 25, 2026, sits 20.4% below the $314 fair value. The value rests on 4 recorded PSA 10 sales. Its confidence band runs from $254 to $374. A PSA 10 ($314) is worth 8.6 times a PSA 9 ($37). Over the past 30 days the PSA 10 value has risen 18.0%. With limited sales evidence, read the gap and the band as rough guides.
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$6.03Ungraded · TCGBerg fair value
- Raw Damaged$3.00Ungraded · 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
12 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Oct 25, 2026 | PSA10 | eBay | $250 | below fair value by -20.2% |
| Sep 18, 2026 | PSA9 | eBay | $23 | below fair value by -45.6% |
| Aug 30, 2026 | PSA10 | eBay | $349 | above fair value by +105.0% |
| Aug 20, 2026 | PSA8 | eBay | $48 | above fair value by +72.7% |
| Aug 20, 2026 | Raw | tcgplayer | $7.00 | above fair value by +16.1% |
- $250Oct 25, 2026 · via eBayPSA10↓below fair value by 20.2%
- $23Sep 18, 2026 · via eBayPSA9↓below fair value by 45.6%
- $349Aug 30, 2026 · via eBayPSA10↑above fair value by 105.0%
- $48Aug 20, 2026 · via eBayPSA8↑above fair value by 72.7%
- $7.00Aug 20, 2026 · via tcgplayerRaw↑above fair value by 16.1%
| Aug 8, 2026 | Raw | tcgplayer | $4.01 | below fair value by -33.5% |
| Jul 30, 2026 | Raw | tcgplayer | $5.00 | below fair value by -17.1% |
| Jul 30, 2026 | Raw | tcgplayer | $8.00 | above fair value by +32.7% |
- $4.01Raw↓below fair value by 33.5%
- $5.00Raw↓below fair value by 17.1%
- $8.00Raw↑above fair value by 32.7%
7 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 53.7% 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.
- CGC Gem Mint 10$341d -7d -30d -
- Pop
- -
- Mcap
- -
- Evidence
- Sparse
- Last
- $16
- PSA10$3141d ·0.0%7d ↑0.1%30d ↑18.0%
- Pop
- 24
- Mcap
- $7.5K
- Evidence
- Limited
- Last
- $250
- PSA9$371d ↑0.1%7d ↑0.2%30d ↓7.9%
- Pop
- 18
- Mcap
- $659
- Evidence
- Sparse
- Last
- $23
| CGC Gem Mint 10 | $34 | - | - | - | - | - | - | Sparse | $167mo ago |
| PSA10 | $314 | 24 | $7.5K | 0.0% | ↑up 0.1% | ↑up 18.0% | ↑up 95.2% | Limited | $2503w ago |
| PSA9 | $37 | 18 | $659 | ↑up 0.1% | ↑up 0.2% | ↓down 7.9% | ↓down 6.0% | Sparse | $232mo ago |
| PSA8 | $35 | 5 | $174 | ↑up 0.1% | ↑up 0.3% | ↑up 1.9% | ↑up 25.0% | Sparse | $483mo ago |
| PSA7 | $35 | 1 | $35 | 0.0% | 0.0% | ↑up 1.3% | ↑up 61.1% | Sparse | - |
| PSA6 | $27 | 0 | - | ↑up 4.9% | ↑up 5.9% | ↑up 2.5% | ↑up 27.3% | Sparse | - |
| Raw | $6.03 | - | - | - | 0.0% | - | - | Moderate | $7.003mo ago |
Graded population report
How Professor Oak's Research'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.49 graded copies of Professor Oak's Research 1st Edition across 5 grades. The selected grade is highlighted.
PSA 10 makes up 49% of graded copies: 24 of 49. It’s the most common grade for this card.
Analysis
Professor Oak's Research - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $314 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from Base Expansion Pack, from PSA 6 up to PSA 10. A graded population of 24 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 18.0%.