Blastoise #37, Reverse Holo, Expedition Base Set
- EBS

- ·Card number: #37/165
- ·Rarity: Rare
A PSA 9 Blastoise #37 Reverse Holo from Expedition Base Set has a TCGBerg fair value of $1,148 as of Nov 14, 2026. It rests on 30 recorded sales, the latest on Nov 8, 2026. PSA has graded 181 copies at PSA 9. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
30 sales · latest Nov 8, 2026
- Population · PSA 9
- 181
- Market cap
- $207.7K
- Volatility
- 6.8%
- YTD
- ↑ 381.7%
- Sales evidence
- Limited
TCGBerg fair value · PSA 9
$1,148
Based on 30 recorded sales. Latest sale: Nov 8, 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 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, $830 on Nov 8, 2026, sits 27.7% below the $1,148 fair value. The value rests on 30 recorded PSA 9 sales. Its confidence band runs from $1,053 to $1,243. A PSA 10 ($8,350) is worth 7.3 times a PSA 9 ($1,148). Over the past 30 days the PSA 9 value has risen 15.3%. 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 LP$150Ungraded · market price
- Raw MP$99Ungraded · market price
- Raw HP$74Ungraded · market price
- Raw Damaged$60Ungraded · 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 |
|---|---|---|---|---|
| Nov 10, 2026 | PSA4 | eBay | $135 | below fair value by -37.0% |
| Nov 8, 2026 | PSA9 | eBay | $830 | below fair value by -30.9% |
| Nov 8, 2026 | PSA10 | eBay | $7,594 | below fair value by -9.4% |
| Nov 4, 2026 | PSA9 | eBay | $1,425 | above fair value by +18.6% |
| Nov 2, 2026 | PSA7 | eBay | $510 | below fair value by -2.8% |
- $135Nov 10, 2026 · via eBayPSA4↓below fair value by 37.0%
- $830Nov 8, 2026 · via eBayPSA9↓below fair value by 30.9%
- $7,594Nov 8, 2026 · via eBayPSA10↓below fair value by 9.4%
- $1,425Nov 4, 2026 · via eBayPSA9↑above fair value by 18.6%
- $510Nov 2, 2026 · via eBayPSA7↓below fair value by 2.8%
| Oct 30, 2026 | PSA10 | Fanatics Collect | $10,000 | above fair value by +20.2% |
| Oct 29, 2026 | PSA2 | eBay | $200 | below fair value by -5.4% |
| Oct 25, 2026 | PSA5 | eBay | $230 | above fair value by +7.2% |
- $10,000PSA10↑above fair value by 20.2%
- $200PSA2↓below fair value by 5.4%
- $230PSA5↑above fair value by 7.2%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 5.4% 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.
- CGC6-1d -7d -30d -
- Pop
- 6
- Mcap
- -
- Evidence
- Sparse
- Last
- -
- CGC7-1d -7d -30d -
- Pop
- 7
- Mcap
- -
- Evidence
- Sparse
- Last
- -
- CGC Pristine 10$2,5951d -7d -30d -
- Pop
- 2
- Mcap
- $5.2K
- Evidence
- Sparse
- Last
- -
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGC6 | - | 6 | - | - | - | - | - | Sparse | - | |
| CGC7 | - | 7 | - | - | - | - | - | Sparse | - | |
| CGC Pristine 10 | $2,595 | 2 | $5.2K | - | - | - | - | Sparse | - | |
| CGC Gem Mint 10 | $945 | 12 | $11.3K | - | - | - | - | Sparse | - | |
| CGC9 | - | 25 | - | - | - | - | - | Sparse | - | |
| BGS9.5 | $662 | 6 | $4.0K | - | - | - | - | Sparse | $3106mo ago | |
| PSA10 | $8,350 | 52 | $434.2K | 0.0% | ↓down 0.3% | ↓down 6.0% | ↑up 101.2% | Limited | $7,5946d ago | |
| PSA9 | $1,148 | 181 | $207.7K | ↑up 0.6% | ↓down 4.6% | ↑up 15.3% | ↑up 68.0% | Limited | $8306d ago | |
| PSA8 | $645 | 184 | $118.7K | ↑up 2.6% | ↑up 9.1% | ↑up 25.0% | ↑up 75.7% | Limited | $9804w ago | |
| PSA7 | $529 | 81 | $42.9K | 0.0% | ↑up 0.9% | ↓down 4.5% | ↑up 129.0% | Limited | $5102w ago | |
| PSA6 | $221 | 75 | $16.5K | ↑up 0.1% | ↑up 1.0% | ↓down 3.5% | ↑up 27.4% | Sparse | $1783mo ago | |
| PSA5 | $216 | 65 | - | ↑up 0.1% | ↑up 0.3% | ↓down 1.2% | ↑up 37.6% | Limited | $2303w ago | |
| PSA4 | $214 | 21 | - | ↑up 0.7% | ↑up 0.3% | ↑up 3.0% | ↑up 37.6% | Sparse | $1354d ago | |
| PSA2 | $212 | 7 | - | ↑up 0.7% | ↑up 0.3% | - | - | Sparse | $2002w ago | |
| PSA1 | $210 | 27 | - | ↑up 0.7% | ↑up 0.3% | ↑up 2.0% | ↑up 36.2% | Moderate | $2201mo ago | |
| Raw | $150 | - | - | 0.0% | 0.0% | 0.0% | ↓down 5.0% | - | $1503mo ago |
Graded population report
How Blastoise'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.905 graded copies of Blastoise Reverse Holo across 41 grades. The selected grade is highlighted.
PSA 9 makes up 20% of graded copies: 181 of 905. PSA 8 is the most common grade (20%).
Analysis
Blastoise - Reverse Holo at PSA 10 carries a TCGBerg fair value of $8,350 as of 2026-11-14. We track a TCGBerg fair value across 12 grades from Expedition Base Set, from PSA 1 up to PSA 10. A graded population of 52 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 fallen 6.0%.