Rocket's Secret Experiment #120/132 1st Edition price and PSA 10 value

Rocket's Secret Experiment 120 grading math

Here is what you keep at each grade if you buy the card raw at today's price, pay PSA and $5 shipping, and sell the slab with a 13% selling fee. PSA's fee depends on what the card is worth after grading: it bills you up to the right tier if the card comes back worth more (the upcharge). PSA's cheapest open tier is Standard ($59.99). If this card grades a 10 it lands in Standard ($59.99), so your all-in cost is $88.08.

Grade	Sells for	PSA fee at that value	You make
PSA 10	no data	no data	no data
PSA 9	no data	no data	no data
PSA 8	no data	no data	no data

The slab has to sell for at least $101 to break even.

Other grades: a 9.5 sells for about $50.00 and a BGS 10 for about $5,533.

PSA tiers checked September 20, 2026. See PSA grading cost and tiers and the full list of cards worth grading for profit.

Card details

• CardRocket's Secret Experiment #120/132
• SetGym Challenge
• Printing1st Edition
• RarityUncommon
• ReleasedOct 16, 2000
• EraVintage Era (1999–2003)

Only about 60 tracked sales back these prices, so expect some swing between one sale and the next.

See current Rocket's Secret Experiment 120 listings on TCGplayer

Before you grade this card

Vintage holos scratch easily and old print runs were often off-centre, so high grades are rare. Check the holo under a bright light and look hard at the back edges for whitening. Graders score centering, corners, edges and surface, and the lowest of the four usually sets the grade. Our guide to card grading shows what to look for and compares PSA, BGS and CGC.