Rocket's Secret Experiment price guide

G2 · Gym Challenge · Card 120/132 · Uncommon

The Altworth Fair Market Value for Rocket's Secret Experiment (Raw · NM) is £11 as of 13 Oct 2026. It follows the median of this product's own sold prices, not a forecast. It is based on 6 sold comps in the last 90 days. Altworth marks the confidence of this price as Recent.

Altworth reference price: £11
Based on: Sold prices
Confidence: Recent
Sold comps (90 days): 6
Updated: 13 Oct 2026

Rocket's Secret Experiment, catalogue front

Other printings and variants

· 2 · each with its own price

Non-holo · 1st Edition · this card£10.53
Non-holo£3.29

Front · catalogue artwork

Other printings and variants

· 2 · each with its own price

Non-holo · 1st Edition · this card£10.53
Non-holo£3.29

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Scan or add your copy to track its value.

Rocket's Secret Experiment

Gym Challenge · 120 / 132 · English

Uncommon
Non-holo
1st Edition
English

Altworth Market Price · Raw · Near Mint

£10.53

Fairly sure

Choose a condition or grade

Altworth Market Price · Raw · Near Mint

£10.53

Fairly sure

Choose a condition or grade

Sold · 30 days: 3
Last sale: £13.54 · 11 Oct

Altworth Market Price · Raw · Near Mint

Sold prices

1M3M1YAll

Median · 30 days: £13.54; 3 clean sales

Middle range: £10.05–£13.15; p25 to p75 · 90 days

Last sale: £13.54; 8 days ago · Near Mint

Last 30 days: +6.1%; vs the 30 days before

Last 90 days: +59.1%; vs the 90 days before

Dots are recorded sales, the green line is the Altworth Market Price you can trace back to them, the band is the middle half of sales.

Altworth Market Price · Raw · Near Mint

Sold prices

Own one? Add it to your collection

Scan or add your copy to track its value.

Recorded sales · Raw · NM

The newest 8 of 11 sales in the 90-day pool.

DateGradePrice

11 Oct 2026Near Mint£13.54

09 Oct 2026Near Mint£4.16

28 Sep 2026Near Mint£20.84

15 Sep 2026Near Mint£13.99

02 Sep 2026Near Mint£7.59

28 Aug 2026Near Mint£9.92

26 Aug 2026Near Mint£10.42

24 Aug 2026Near Mint£9.06

Older sales fall out of the pool after 90 days and stop counting toward the price.

More from Gym Challenge

132 cards · English · Gym · October 2000

All 132 cards

Other Secret Experiment cards

Every Secret Experiment across sets and languages.

All 2 cards

More from Gym Challenge

Other Secret Experiment cards

Facts

Set: Gym Challenge
Number: 120 / 132
Rarity: Uncommon

Language: English
Treatment: Non-holo · 1st Edition
Species: Secret Experiment
Printing: Non-holo · 1st Edition

Condition: Near Mint

Altworth Market Price · Raw · Near Mint

£10.53

Fairly sure

Choose a condition or grade

Sold · 30 days: 3
Last sale: £13.54 · 11 Oct

Other printings and variants

· 2 · each with its own price

Non-holo · 1st Edition · this card£10.53
Non-holo£3.29

Other printings and variants

· 2 · each with its own price

Non-holo · 1st Edition · this card£10.53
Non-holo£3.29

Altworth Market Price · Raw · Near Mint

Sold prices

1M3M1YAll

Median · 30 days: £13.54; 3 clean sales

Middle range: £10.05–£13.15; p25 to p75 · 90 days

Last sale: £13.54; 8 days ago · Near Mint

Last 30 days: +6.1%; vs the 30 days before

Last 90 days: +59.1%; vs the 90 days before

Dots are recorded sales, the green line is the Altworth Market Price you can trace back to them, the band is the middle half of sales.

Recorded sales · Raw · NM

The newest 8 of 11 sales in the 90-day pool.

DateGradePrice

11 Oct 2026Near Mint£13.54

09 Oct 2026Near Mint£4.16

28 Sep 2026Near Mint£20.84

15 Sep 2026Near Mint£13.99

02 Sep 2026Near Mint£7.59

28 Aug 2026Near Mint£9.92

26 Aug 2026Near Mint£10.42

24 Aug 2026Near Mint£9.06

Older sales fall out of the pool after 90 days and stop counting toward the price.

Sold · 30 days: 3
Last sale: £13.54 · 11 Oct

Sold · 30 days: 3
Last sale: £13.54 · 11 Oct