Gyarados #27, 1st Edition, Mysterious Mountains
Japanese edition
- Card number: #27/88
- ·Rarity: Rare
- ·Finish: Non-Holo
A PSA 10 Gyarados #27 1st Edition from Mysterious Mountains has a TCGBerg fair value of $1,349 as of Nov 15, 2026. It rests on 27 recorded sales, the latest on Nov 8, 2026. PSA has graded 78 copies at PSA 10. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
27 sales · latest Nov 8, 2026
- Population · PSA 10
- 78
- Market cap
- $105.2K
- Volatility
- 1.6%
- YTD
- ↑ 187.7%
- Sales evidence
- Limited
TCGBerg fair value · PSA 10
$1,349
Based on 27 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 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, $1,390 on Nov 8, 2026, is in line with the $1,349 fair value (3.1% above). The value rests on 27 recorded PSA 10 sales. Its confidence band runs from $1,233 to $1,465. A PSA 10 ($1,349) is worth 3.3 times a PSA 9 ($403). Over the past 30 days the PSA 10 value has risen 5.5%. 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$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 8, 2026 | PSA10 | eBay | $1,390 | above fair value by +5.1% |
| Oct 18, 2026 | PSA10 | eBay | $1,300 | above fair value by +1.4% |
| Oct 7, 2026 | PSA9 | eBay | $540 | above fair value by +39.0% |
| Sep 26, 2026 | PSA8 | eBay | $200 | above fair value by +5.6% |
| Sep 18, 2026 | PSA10 | eBay | $1,129 | below fair value by -3.7% |
- $1,390Nov 8, 2026 · via eBayPSA10↑above fair value by 5.1%
- $1,300Oct 18, 2026 · via eBayPSA10↑above fair value by 1.4%
- $540Oct 7, 2026 · via eBayPSA9↑above fair value by 39.0%
- $200Sep 26, 2026 · via eBayPSA8↑above fair value by 5.6%
- $1,129Sep 18, 2026 · via eBayPSA10↓below fair value by 3.7%
| Aug 28, 2026 | PSA9 | eBay | $275 | below fair value by -11.6% |
| Aug 27, 2026 | PSA9 | eBay | $405 | above fair value by +30.2% |
| Aug 22, 2026 | PSA8 | eBay | $200 | above fair value by +8.3% |
- $275PSA9↓below fair value by 11.6%
- $405PSA9↑above fair value by 30.2%
- $200PSA8↑above fair value by 8.3%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 12.9% 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$1,3491d ↑0.5%7d ↑2.4%30d ↑5.5%
- Pop
- 78
- Mcap
- $105.2K
- Evidence
- Limited
- Last
- $1,390
- PSA9$4031d ↑0.2%7d ↑1.2%30d ↑8.2%
- Pop
- 91
- Mcap
- $36.7K
- Evidence
- Limited
- Last
- $540
- PSA8$2191d ↑0.5%7d ↑0.8%30d ↑1.5%
- Pop
- 48
- Mcap
- $10.5K
- Evidence
- Limited
- Last
- $200
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PSA10 | $1,349 | 78 | $105.2K | ↑up 0.5% | ↑up 2.4% | ↑up 5.5% | ↑up 19.6% | Limited | $1,3901w ago | |
| PSA9 | $403 | 91 | $36.7K | ↑up 0.2% | ↑up 1.2% | ↑up 8.2% | ↑up 35.8% | Limited | $5401mo ago | |
| PSA8 | $219 | 48 | $10.5K | ↑up 0.5% | ↑up 0.8% | ↑up 1.5% | ↑up 24.4% | Limited | $2002mo ago | |
| PSA7 | $136 | 17 | $2.3K | 0.0% | 0.0% | ↓down 3.0% | ↓down 0.8% | Sparse | - | |
| PSA6 | $111 | 9 | $1.0K | 0.0% | 0.0% | ↓down 4.3% | ↑up 25.5% | Sparse | $751y ago | |
| PSA5 | $111 | 3 | - | 0.0% | 0.0% | ↓down 4.3% | ↑up 25.5% | Sparse | - | |
| Raw | $60 | - | - | - | - | - | - | - | - |
PSA population report
How Gyarados'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.246 graded copies of Gyarados 1st Edition across 6 grades. The selected grade is highlighted.
PSA 10 makes up 32% of graded copies: 78 of 246. PSA 9 is the most common grade (37%).
Analysis
Gyarados - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $1,349 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from Mysterious Mountains, from PSA 6 up to PSA 10. A graded population of 78 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 5.5%.
