Poliwhirl #89, Reverse Holo, Expedition Base Set
- Card number: #89/165
- Rarity: Uncommon
A PSA 9 Poliwhirl #89 Reverse Holo from Expedition Base Set has a TCGBerg fair value of $342 as of Nov 15, 2026. It rests on 8 recorded sales, the latest on Oct 1, 2026. PSA has graded 36 copies at PSA 9. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
8 sales · latest Oct 1, 2026
- Population · PSA 9
- 36
- Market cap
- $12.3K
- Volatility
- 16.5%
- YTD
- ↑ 635.8%
- Sales evidence
- Sparse
TCGBerg fair value · PSA 9
$342
Based on 8 recorded sales. Latest sale: Oct 1, 2026.
Price history
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.
What the evidence says
The latest recorded PSA 9 sale ($642 on Oct 1, 2026) sits 87.9% above the $342 fair value, too far off to read as this grade's price. The value rests on 8 recorded PSA 9 sales. The latest sale ran above the recent run: the last 3 PSA 9 sales averaged $327, within 4.2% of the value. Its confidence band runs from $258 to $426. A PSA 10 ($2,017) is worth 5.9 times a PSA 9 ($342). With sparse sales evidence, read the gap and the band as rough guides.
TCGBerg fair value by grade
Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
- Raw LP$80Ungraded · market price
- Raw HP$28Ungraded · market price
- Raw NM$21Ungraded · market price
- Raw MP$16Ungraded · market price
- Raw Damaged$8.25Ungraded · market price
Behind the scenes
What goes into this price, and how much we know.
Recent sales
11 trackedEach sale against the grade's fair value on the day it sold.
- $160Nov 4, 2026 · via eBayabove fair value by 163.6%
- $7,069Nov 2, 2026 · via eBayabove fair value by 250.5%
- $642Oct 1, 2026 · via eBayabove fair value by 15.7%
- $75Sep 13, 2026 · via eBayabove fair value by 53.8%
- $51Jul 12, 2026 · via eBayabove fair value by 9.9%
6 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
Includes a sale 16.1% 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$3031d -7d -30d -
- Pop
- 7
- Mcap
- $2.1K
- Evidence
- Sparse
- Last
- -
- $2,0171d 0.0%7d 0.0%30d 36.2%
- Pop
- 7
- Mcap
- $14.1K
- Evidence
- Sparse
- Last
- $7,069
- $3421d 0.0%7d 0.2%30d 34.9%
- Pop
- 36
- Mcap
- $12.3K
- Evidence
- Sparse
- Last
- $642
| CGC Gem Mint 10 | $303 | 7 | $2.1K | - | - | - | - | Sparse | - |
| $2,017 | 7 | $14.1K | 0.0% | 0.0% | down 36.2% | up 96.2% | Sparse | $7,0692w ago | |
| $342 | 36 | $12.3K | 0.0% | up 0.2% | down 34.9% | up 122.8% | Sparse | $6422mo ago | |
| $119 | 41 | $4.9K | 0.0% | up 0.1% | down 31.7% | up 12.7% | Sparse | $807mo ago | |
| $64 | 19 | $1.2K | 0.0% | 0.0% | down 24.3% | up 23.7% | Sparse | - | |
| $64 | 9 | $572 | 0.0% | up 4.7% | down 6.3% | up 40.7% | Sparse | $1602w ago | |
| $63 | 3 | - | 0.0% | up 4.0% | down 6.9% | up 47.0% | Sparse | - | |
| $50 | 2 | - | 0.0% | down 0.8% | down 0.3% | up 125.1% | Limited | $752mo ago | |
| Raw | $21 | - | - | - | - | - | - | - | - |
Graded population report
176 graded copies of Poliwhirl Reverse Holo across 22 grades. The selected grade is highlighted.
PSA 9 makes up 20% of graded copies: 36 of 176. PSA 8 is the most common grade (23%).
Analysis
Poliwhirl - Reverse Holo at PSA 10 carries a TCGBerg fair value of $2,017 as of 2026-11-14. We track a TCGBerg fair value across 8 grades from Expedition Base Set, from PSA 4 up to PSA 10. A graded population of 7 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 36.2%.