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Grass Energy #129, 1st Edition, Gym Heroes

  • Card number: #129/132
  • Rarity: Common
  • Finish: Non-Holo

A PSA 9 Grass Energy #129 1st Edition from Gym Heroes has a TCGBerg fair value of $44 as of Nov 15, 2026. TCGBerg has recorded 7 PSA 9 sales of this card, the latest on Oct 29, 2026. PSA has graded 76 copies at PSA 9.

TCGBerg fair valuePSA 9
As of Nov 15, 2026
$44down 17.2%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$20Oct 29, 202654.8% below fair
5-sale avg$48Jul 3Oct 29
Population · PSA 9
76
Market cap
$3.4K
Volatility
5.5%
YTD
↑ 126.7%
Sales evidence
Moderate

TCGBerg fair value · PSA 9

$44

30D17.2%YTD126.7%
Sales evidenceModerate
Market cap
$3.4K
fair value x population
Population
76
graded copies
Last sale
$20
-54.8% vs fair
5-sale avg
$48
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 9.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 9 sale, $20 on Oct 29, 2026, sits 54.8% below the $44 fair value. The value weighs 5 PSA 9 sales from the past year, not the latest one alone. The latest sale ran below the recent run: the last 5 PSA 9 sales averaged $48, within 9.4% of the value. Its confidence band runs from $40 to $48. A PSA 10 ($776) is worth 17.5 times a PSA 9 ($44). Over the past 30 days the PSA 9 value has fallen 17.2%.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

  • Raw NM$1.62Ungraded · TCGBerg fair value
  • Raw LP$0.84Ungraded · TCGBerg fair value
  • Raw MP$0.80Ungraded · TCGBerg fair value
  • Raw Damaged$0.52Ungraded · market price
  • Raw HP$0.45Ungraded · market price
hatched = market price, not a TCGBerg fair value

Behind the scenes

What goes into this price, and how much we know.

Recent sales

20 tracked

Each sale against the grade's fair value on the day it sold.

  • $2.00
    Oct 30, 2026 · via tcgplayer
    Rawabove fair value by 25.0%
  • $20
    Oct 29, 2026 · via eBay
    PSA9below fair value by 60.1%
  • $0.40
    Oct 24, 2026 · via tcgplayer
    Rawbelow fair value by 74.2%
  • $1.58
    Oct 20, 2026 · via tcgplayer
    Rawabove fair value by 1.9%
  • $1.99
    Oct 15, 2026 · via tcgplayer
    Rawabove fair value by 17.8%

15 more sales with Pro

Up to 20 recent sales, each with its venue and its gap to fair value.

Includes a sale 77.4% below fair value

All grades matrix

Every grade we track for this printing.

  • PSA10$776
    1d 0.0%7d 0.0%30d 1.9%
    Pop
    20
    Mcap
    $15.5K
    Evidence
    Sparse
    Last
    $834
  • PSA9$44
    1d 0.1%7d 11.7%30d 17.2%
    Pop
    76
    Mcap
    $3.4K
    Evidence
    Moderate
    Last
    $20
  • PSA8$24
    1d 0.0%7d 0.0%30d 8.6%
    Pop
    35
    Mcap
    $839
    Evidence
    Sparse
    Last
    $15
Listings
PSA10$77620$15.5K0.0%down 1.9%up 103.4%Sparse$8345mo ago
PSA9$4476$3.4Kdown 11.7%down 17.2%up 94.4%Moderate$202w ago
PSA8$2435$8390.0%down 8.6%up 52.7%Sparse$156mo ago
PSA7$1712$199down 0.1%down 3.2%up 6.3%Sparse$8.0110mo ago
PSA6$175$83down 0.1%down 3.2%up 6.3%Sparse-
PSA5$174-down 0.1%down 3.2%up 6.3%Sparse$102y ago
Raw$1.62--up 0.6%down 3.6%-Strong$2.002w ago

PSA population report

152 graded copies of Grass Energy 1st Edition across 6 grades.

PSA 10
20 · 13%
PSA 9
76 · 50%
PSA 8
35 · 23%
PSA 7
12 · 7.9%
PSA 6
5 · 3.3%
PSA 5
4 · 2.6%

PSA 9 makes up 50% of graded copies: 76 of 152. It’s the most common grade for this card.

Analysis

Grass Energy - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $776 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from Gym Heroes, from PSA 7 up to PSA 10. A graded population of 20 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 1.9%.

PSA 9 - frequently asked

How much is a PSA 9 Grass Energy - 1st Edition Normal from Gym Heroes worth?
$44 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 9 Grass Energy - 1st Edition Normal from Gym Heroes. It rests on moderate sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 9 Grass Energy - 1st Edition Normal from Gym Heroes?
76 copies have been graded at PSA 9, the recorded graded population, not the number of copies printed.
How has the PSA 9 Grass Energy - 1st Edition Normal from Gym Heroes price moved recently?
Its TCGBerg fair value has fallen 17.2% over the past 30 days.
What did a PSA 9 Grass Energy - 1st Edition Normal from Gym Heroes last sell for?
The most recent recorded sale was $20 on 2026-10-29. This recorded sale is separate from the model-derived fair value.