ThisorThat

The provably fair card marketplace where you pick your price through games. Everyone gets a card. Every flip is verified on-chain.

Browse Cards How It Works
SHA-256 Verified Solana Anchored Instant Results

Three Ways to Play

Choose your game. Set your spread. Get your card.

🪙

Flip

This or That. 50/50 odds. Win and you get a discount. Lose and you pay a premium. Simple. Fair. Verified.

Win: -15%Lose: +15%
🎯

Pick One

Multiple cards, one hit. Pick the right position and score big. The more cards in play, the bigger the spread.

2-10 cardsFind the hit
🏆

Game Day

Over/Under on live player stats. Real odds from real games. Your price moves with the action.

Live oddsDynamic pricing

Pay Your Way

Two payment rails. You choose. Crypto saves you more.

Recommended
⚖

USDC on Solana

5% fee

Connect your Phantom or Solflare wallet. Pay with USDC stablecoin.

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Instant settlement (~400ms)
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$0.001 transaction cost
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No chargebacks
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On-chain proof of every flip
✓
Wallet = your identity
Supports Phantom, Solflare, Backpack
Traditional
💳

Card / Bank

10% fee

Pay with credit card or bank transfer via Stripe. No wallet needed.

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3-5 day settlement
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2.9% + $0.30 processing
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Familiar checkout
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Email account based
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Coming soon
Save 50% on fees — switch to USDC

On a $300 card: USDC fee is $15 vs card fee of $30. You save $15 every flip with crypto.

Live Listings

Cards available right now

2020 Panini Illusions Hurts/Lamb Dual Patch Auto Red
2020 Panini Illusions Hurts/Lamb Dual Patch Auto Red back
Flip
PSA 8
2020 Panini Illusions Hurts/Lamb Dual Patch Auto Red
Market Value
$800
Spread
15%
Win
$680
Lose
$920
C
CardKing99✓
2000 Skybox Dominion G.Carmazzi/T.Brady Rookies Pairs
2000 Skybox Dominion G.Carmazzi/T.Brady Rookies Pairs back
Flip
PSA 10
2000 Skybox Dominion G.Carmazzi/T.Brady Rookies Pairs
Market Value
$2500
Spread
20%
Win
$2000
Lose
$3000
S
SlabMaster✓
2023 Select Patrick Mahomes II Dragon Scale Prizm
2023 Select Patrick Mahomes II Dragon Scale Prizm back
Flip
PSA 10
2023 Select Patrick Mahomes II Dragon Scale Prizm
Market Value
$750
Spread
12%
Win
$660
Lose
$840
G
GridironCards✓
View all listings

How It Works

1

Browse

Find a card you want from verified sellers with transparent pricing.

2

Choose Your Game

Flip, Pick One, or Game Day — each game type has different odds and spreads.

3

Play for Your Price

Make your pick. The result is determined by a pre-committed cryptographic seed.

4

Get Your Card

Win or lose, the card ships to you. You just played for your price.

1,247
Cards Listed
4,891
Games Played
$234K
Total Volume
100%
Verified On-Chain

Ready to flip?

Every card ships. Every game is verified. Your price, your pick.

Browse Cards Now