Stadium is a launchpad on pump.fun where coins fight 1v1. Every day two coins with close market caps play for 24 hours. The coin that gains more by the final whistle wins, and the loser's creator fees from that match buy the winner.
Connect your wallet on Launch a coin, give the coin a name, a ticker and a picture, and pay 0.1 SOL once. Stadium's launch wallet creates the coin on pump.fun and pays pump.fun's create cost (about 0.02 SOL) out of that fee. Your coin is in the daily 1v1 pool unless you switch it off. You can switch it on or off later on your coin's page.
Every day at 18:00 UTC Stadium draws one match. A coin can be drawn when:
Stadium reads every eligible coin's market cap from the chain and pairs the two closest ones. The bigger market cap may be at most 2 times the smaller one, and the same two coins do not meet again within 7 days. When no two coins qualify, there is no match that day, and the match page says why.
At kickoff Stadium reads both coins' prices from the chain in one pass: the bonding curve, or the PumpSwap pool once a coin has graduated. 24 hours later, at the final whistle, it reads both again in one pass. Each coin's score is its price change between the two readings. The bigger change wins. Changes closer than 0.01 percentage points are a draw. The live score, the clock and every trade of both coins are on the Live page.
Every coin launched here has Stadium's launch wallet as its creator on pump.fun, so every coin's creator fees reach that wallet, and Stadium keeps a ledger of whose fees they are, trade by trade. After the final whistle Stadium adds up the loser's creator fees from the match window and the launch wallet spends that amount on a buy of the winner. The buy is made on a schedule, and its transaction is shown on the match page and on Payouts.
The launch fee and every coin's creator fees go to Stadium's launch wallet. The one exception is a match loser's fees from its match window, which buy the winner. Stadium never holds a private key: the launch wallet is a PumpPortal Lightning wallet, and anything Stadium owes a person, such as a refund, is listed on Payouts and paid by hand from the owner's wallet, with its transaction.
Prices, market caps and trades are read from the Solana chain. Fees, records and results come from Stadium's database, which is filled from the chain. Before there is any activity, the pages show empty states. Nothing on Stadium is made up.
Launching is open. A match is drawn every day once two coins in the pool qualify. Read the FAQ and the docs for more.