Colress’s Experiment (Regional Championships) [Staff] 155/196 Price – League & Championship Cards

#155 · League & Championship Cards

Raw price today$151.24

■ 0.0% this week

PSA 10$30.91

PSA 9$18.61

HOLDMixed signals: the set is old enough that sealed supply is drying up, but it spiked +68% in a month.

Where to buy Colress's Experiment [Staff]Buy raw on TCGplayerMarket price $151.24PokeInsider earns a commission when you buy through these links, at no extra cost to you.

HOLD

PokeInsider signal

Why it’s a HOLD

SELLHOLDBUY

▼Spiked +68% in 30 days, likely to cool off
▼At its 30-day high
▲Older set (2+ years): less sealed supply

A rules-based read of this card’s raw price trend, updated daily. How signals work · Market data, not financial advice.

Worth grading? Usually notA PSA 10 sells for $30.91, which doesn’t cover the raw price plus the $39.99 PSA grading fee, so even a perfect 10 loses money.

Check if it’s worth grading →View my collection →

Prices updated Oct 30, 2026. Raw: TCGplayer Near Mint market price. Graded: PriceCharting sold prices.

Colress's Experiment (Regional Championships) [Staff] (155/196) from League & Championship Cards is a Promo. It sells for about $151.24 raw and $30.91 in a PSA 10. The raw price is flat over the last 7 days and up 68.1% over 30 days.

It is the 57th most valuable of the 209 League & Championship Cards cards we track, just behind Tropius (National Championships) [Staff] ($151.26) and ahead of Lucario (Pokemon League) [2nd Place] ($150.00). The set’s most valuable card is Dragonite (National Championships) [Staff] ($997.00). Among the 1,202 Promo cards on PokeInsider, it ranks 254th by raw price.

Colress's Experiment [Staff] price today

Raw$151.24Near Mint

PSA 9$18.610.1× raw

PSA 10$30.910.2× raw

BGS 10$40.000.3× raw · Pristine

CGC 10$12.000.1× raw

Raw price change

24 hours0.0%

7 days0.0%

30 days▲ +68.1%

Colress's Experiment [Staff] price chart

30 days90 days

76-day high$151.24

76-day low$89.99

76-day average$112.07

Today vs. highAt the high

Raw Near Mint market price on TCGplayer, one point per day.

Grading math

A PSA 10 sells for 0.2x the raw price. A PSA 9 sells for $18.61, 0.1x raw.

Buying a raw copy at $151.24 and paying $39.99 to grade it (PSA Value, for cards valued up to $500), you break even if roughly 100% of your copies come back a PSA 10 (counting the rest at PSA 9 value). Grading fees and gem rates vary; this is a rough guide, not a guarantee.

Run the numbers for Colress's Experiment [Staff] in our grading calculator (your own cost, gem rate, tier and fees).