Grass Energy #91, Normal, XY - Evolutions
- Card number: #91/108
- Rarity: Common
- Finish: Non-Holo
A PSA 9 Grass Energy #91 Normal from XY - Evolutions has a TCGBerg fair value of $15 as of Nov 13, 2026. It rests on 1 recorded sale, the latest on Dec 19, 2025. PSA has graded 13 copies at PSA 9. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
1 sale · latest Dec 19, 2025
- Population · PSA 9
- 13
- Market cap
- $191
- Volatility
- 3.2%
- YTD
- ↑ 62.9%
- Sales evidence
- Sparse
TCGBerg fair value · PSA 9
$15
Based on 1 recorded sale. Latest sale: Dec 19, 2025.
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 ($5.50 on Dec 19, 2025) sits 62.6% below the $15 fair value, too far off to read as this grade's price. The value rests on 1 recorded PSA 9 sale. With so few PSA 9 sales on record, a single sale can sit far from the value. Its confidence band runs from $11 to $18. A PSA 10 ($171) is worth 11.7 times a PSA 9 ($15). Over the past 30 days the PSA 9 value has fallen 6.8%. 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 Damaged$0.25Ungraded · market price
- Raw NM$0.20Ungraded · TCGBerg fair value
- Raw HP$0.20Ungraded · market price
- Raw LP$0.19Ungraded · TCGBerg fair value
- Raw MP$0.13Ungraded · TCGBerg fair value
Behind the scenes
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.
- $0.25Nov 5, 2026 · via tcgplayerRawabove fair value by 31.6%
- $0.15Nov 3, 2026 · via tcgplayerRawbelow fair value by 21.1%
- $0.15Oct 20, 2026 · via tcgplayerRawbelow fair value by 16.7%
- $0.25Oct 19, 2026 · via tcgplayerRawabove fair value by 38.9%
- $0.10Oct 17, 2026 · via tcgplayerRawbelow fair value by 41.2%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
Includes a sale 20.0% 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.
- $1711d 0.0%7d 0.0%30d 40.7%
- Pop
- 5
- Mcap
- $856
- Evidence
- Sparse
- Last
- -
- $151d 0.0%7d 0.1%30d 6.8%
- Pop
- 13
- Mcap
- $191
- Evidence
- Sparse
- Last
- $5.50
- $131d 0.0%7d 0.0%30d 32.0%
- Pop
- 9
- Mcap
- $115
- Evidence
- Sparse
- Last
- $5.51
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| $171 | 5 | $856 | 0.0% | 0.0% | down 40.7% | down 25.9% | Sparse | - | ||
| $15 | 13 | $191 | 0.0% | down 0.1% | down 6.8% | up 9.6% | Sparse | $5.5011mo ago | ||
| $13 | 9 | $115 | 0.0% | 0.0% | up 32.0% | up 112.7% | Sparse | $5.511y ago | ||
| $13 | 5 | $63 | 0.0% | down 0.2% | up 30.8% | up 110.7% | Sparse | $142mo ago | ||
| $8.61 | 0 | - | 0.0% | down 4.7% | up 6.2% | up 43.7% | Sparse | - | ||
| Raw | $0.20 | - | - | - | up 5.3% | up 25.0% | - | Very strong | $0.251w ago |
PSA population report
32 graded copies of Grass Energy Normal across 4 grades. The selected grade is highlighted.
PSA 9 makes up 41% of graded copies: 13 of 32. It’s the most common grade for this card.
Analysis
Grass Energy - Normal at PSA 10 carries a TCGBerg fair value of $171 as of 2026-11-13. We track a TCGBerg fair value across 5 grades from XY - Evolutions, from PSA 6 up to PSA 10. A graded population of 5 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 40.7%.