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Rocket's Secret Experiment #120, 1st Edition, Gym Challenge

  • Card number: #120/132
  • Rarity: Uncommon
  • Finish: Non-Holo

A PSA 9 Rocket's Secret Experiment #120 1st Edition from Gym Challenge has a TCGBerg fair value of $53 as of Nov 15, 2026. TCGBerg has recorded 8 PSA 9 sales of this card, the latest on Oct 2, 2026. PSA has graded 60 copies at PSA 9.

TCGBerg fair valuePSA 9
As of Nov 15, 2026
$53up 3.5%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$35Oct 2, 202633.4% below fair
5-sale avg$59May 4Oct 2
Population · PSA 9
60
Market cap
$3.2K
Volatility
1.8%
YTD
↑ 12.0%
Sales evidence
Moderate

TCGBerg fair value · PSA 9

$53

30D3.5%YTD12.0%
Sales evidenceModerate
Market cap
$3.2K
fair value x population
Population
60
graded copies
Last sale
$35
-33.4% vs fair
5-sale avg
$59
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, $35 on Oct 2, 2026, sits 33.4% below the $53 fair value. The value weighs 8 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 $59, within 11.8% of the value. Its confidence band runs from $49 to $56. A PSA 10 ($1,427) is worth 27.1 times a PSA 9 ($53). Over the past 30 days the PSA 9 value has risen 3.5%.

TCGBerg fair value by grade

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

  • Raw NM$18Ungraded · TCGBerg fair value
  • Raw LP$5.05Ungraded · TCGBerg fair value
  • Raw MP$4.93Ungraded · market price
  • Raw Damaged$2.72Ungraded · TCGBerg fair value
  • Raw HP$1.99Ungraded · 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.

  • $13
    Nov 2, 2026 · via Fanatics Collect
    CGC9.5above fair value by 10.6%
  • $17
    Oct 27, 2026 · via tcgplayer
    Rawbelow fair value by 2.3%
  • $45
    Oct 26, 2026 · via eBay
    PSA8above fair value by 49.8%
  • $30
    Oct 12, 2026 · via eBay
    PSA8above fair value by 8.1%
  • $20
    Oct 12, 2026 · via tcgplayer
    Rawabove fair value by 7.1%

15 more sales with Pro

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

Includes a sale 45.9% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC9.5$12
    1d -7d -30d -
    Pop
    3
    Mcap
    $36
    Evidence
    Sparse
    Last
    $13
  • PSA10$1,427
    1d 0.0%7d 0.1%30d 9.5%
    Pop
    25
    Mcap
    $35.7K
    Evidence
    Sparse
    Last
    $2,600
  • PSA9$53
    1d 1.2%7d 0.8%30d 3.5%
    Pop
    60
    Mcap
    $3.2K
    Evidence
    Moderate
    Last
    $35
Listings
CGC9.5$123$36---Sparse$132w ago
PSA10$1,42725$35.7Kup 0.1%down 9.5%up 119.0%Sparse$2,6001mo ago
PSA9$5360$3.2Kdown 0.8%up 3.5%down 16.7%Moderate$351mo ago
PSA8$3041$1.2K0.0%up 7.8%up 19.7%Moderate$453w ago
PSA7$309$2710.0%up 7.8%up 22.8%Sparse$5.501y ago
PSA6$316$184up 0.1%down 0.4%up 68.0%Limited$462mo ago
PSA5$301-0.0%down 1.1%up 66.1%Sparse-
Raw$18--down 0.1%down 6.6%-Strong$173w ago

Graded population report

234 graded copies of Rocket's Secret Experiment 1st Edition across 19 grades.

PSA 10
25 · 11%
PSA 9
60 · 26%
PSA 8
41 · 18%
PSA 7
9 · 3.8%
PSA 6
6 · 2.6%
CGC Pristine 10
2 · 0.9%
CGC Gem Mint 10
8 · 3.4%
CGC 9.5
3 · 1.3%
CGC 9
21 · 9.0%
CGC 8.5
23 · 9.8%
CGC 8
11 · 4.7%
CGC 7.5
11 · 4.7%
CGC 7
5 · 2.1%
CGC 6.5
3 · 1.3%
CGC 6
1 · 0.4%
CGC 5.5
1 · 0.4%
CGC Authentic
2 · 0.9%
PSA 8.5
1 · 0.4%
PSA 5
1 · 0.4%

PSA 9 makes up 26% of graded copies: 60 of 234. It’s the most common grade for this card.

Analysis

Rocket's Secret Experiment - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $1,427 as of 2026-11-14. We track a TCGBerg fair value across 7 grades from Gym Challenge, from CGC 9.5 up to PSA 10. A graded population of 25 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 9.5%.

PSA 9 - frequently asked

How much is a PSA 9 Rocket's Secret Experiment - 1st Edition Normal from Gym Challenge worth?
$53 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 9 Rocket's Secret Experiment - 1st Edition Normal from Gym Challenge. It rests on moderate sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 9 Rocket's Secret Experiment - 1st Edition Normal from Gym Challenge?
60 copies have been graded at PSA 9, the recorded graded population, not the number of copies printed.
How has the PSA 9 Rocket's Secret Experiment - 1st Edition Normal from Gym Challenge price moved recently?
Its TCGBerg fair value has risen 3.5% over the past 30 days.
What did a PSA 9 Rocket's Secret Experiment - 1st Edition Normal from Gym Challenge last sell for?
The most recent recorded sale was $35 on 2026-10-02. This recorded sale is separate from the model-derived fair value.