Pumpers: Free trading rounds. Every 15 minutes.
Everyone trades the same real chart for five minutes, with $1,000 of paper money and up to 5x. Top balance at the closing bell takes the pot, in SOL.
The potFills at launchThe Pumpers coin’s creator fees, paid in SOL to the winner.
The first round
Starts when the coin launches
Launching soonThe coin’s address goes up on @playpumpers first.
- 1
Join free. Connect a Solana wallet and sign one message. No deposit, never a transaction.
- 2
Trade five minutes. Every 15 minutes everyone gets the same real chart, $1,000 of paper money and up to 5x.
- 3
Top balance takes the pot. All the coin’s creator fees claimed at the draw, paid in SOL to the winner’s wallet.
Pumpers A trading league
Gloves up.Chart on.
Every trader is a Pumper, a candlestick fighter. Every 15 minutes a round is drawn, everyone trades the same five minutes of a real chart, and the top balance at the closing bell takes the belt.
- FreeConnect a Solana wallet and sign one message. No deposit, no stake, never a transaction.
- :00 :15 :30 :45A round on every quarter hour. The chart is drawn, the bell rings ten seconds later, and trading runs five minutes.
- $1,000 · 5xEveryone starts with $1,000 of paper money. Go long or short with a share of it, at 1x to 5x, as often as you like.
- Late?Join any time before the closing bell and you start with a fresh $1,000, right where the chart is.
- The beltAll of the Pumpers coin’s creator fees claimed at that round, paid in SOL to the top balance.
01 The round
chart hash 1b1e…88a6 · coin revealed at the bell
One chart.
Everyone.
Five minutes.
- Same chartEveryone trades the same five real minutes, with the minute before as the pre-chart. The coin stays a mystery until the closing bell.
- SwingsEach round is picked for big moves both ways that finish close to where they started. Ride the swings; don’t marry a direction.
- The boardEvery balance, live, once a second. Open positions close at the closing bell and the top balance takes the pot.
- Your keysW long, S short, C close, 1–5 leverage. On a phone, the big buttons.
This one is a demo: six bots on a real replayed chart, sped up five times. In the arena, it’s you.
02 The belt
The pot is every lamport of the Pumpers coin’s creator fees claimed at the round’s draw, paid in SOL straight to the top balance at the closing bell. The rounds and the pots start when the coin launches.
03 Provably fair
Nobody touches the chart.
- 1
Commit
Every round’s chart comes from a secret 32-byte seed and a stretch of real candles. Their sha256 is on your screen before the bell.
- 2
Play
Everyone gets the same ticks at the same time. Orders fill at the server’s latest tick. Nobody sees the future, including us.
- 3
Reveal
At the closing bell the seed and the coin are published. Press “Verify this chart” and your browser rebuilds every candle and checks the hash.
- 4
Pay
Fee claims and payouts are ordinary Solana transactions from the treasury wallet. Every one is linked on the rounds page.
04 Questions
Before the bell.
Is it really free?
Yes. Joining costs nothing and the site never asks you to sign a transaction. Signing in is a plain message that moves no funds.
Where does the pot come from?
The Pumpers coin is launched on pump.fun, which pays its creator a fee on every trade. At each round’s draw the treasury claims those fees, and all of it becomes that round’s pot, paid to the top balance.
How much is the pot?
Whatever the fees were. A busy quarter hour makes a fat pot, a quiet one makes a small one, and it can be zero. The live number on the site is the fees accrued so far.
Is the chart real?
Yes. Every round replays five real minutes of a big coin (BTC, ETH, SOL and other large caps) from Binance’s 1-second history, scaled up so the moves are worth trading. Everyone gets the same five minutes. Which ones is locked in before the bell and revealed at the closing bell, so you can check them against Binance.
Why does the chart end near where it started?
The five minutes are picked that way: big swings both ways, finishing close to the start. A round is won by trading the swings, not by guessing one direction and holding.
Can I join late?
Yes, right up to the closing bell. You start with a fresh $1,000 wherever the chart is. Joining late gives you less time, not less money.
What can I lose?
Nothing real: it’s paper money. In the round, a position that loses 95% of its margin is liquidated: that margin is gone, never more, and cash you didn’t put up is untouched.
What if nobody trades?
A round needs at least two traders. Fewer, or a round voided by a server restart, and the pot rolls over into the next round.
What about ties?
Balances within half a cent at the bell are a tie, settled by a number derived from the round’s revealed seed. Anyone can recompute it.
Do I have to watch the whole round?
Only to trade. Open positions close at the closing bell whether you’re there or not, and your balance at the bell is what counts.
How do I get paid?
Automatically. The payout is a SOL transfer from the treasury to the wallet you signed in with, and the transaction is linked on the rounds page.
Every number and edge case is on the rules page.
Arena Practice round
The arena.
Live rounds with a real pot start when the coin launches. Until then, warm up: a practice round on a real replayed chart against five bots, sped up five times. Paper money, no pot, nothing to sign.
Five minutes of a real chart at 5x speed. $1,000 of paper money, up to 5x. Beat the bots.
Practice only. The chart is a real replayed minute stretch, scaled up, and the bots are simple scripts. Nothing here trades a real market and practice results don’t count for any pot.
Rounds Past rounds
Past rounds.
Every round lands here after the closing bell: the coin and the minutes it replayed, the revealed seed, the winner, the pot and the payout transaction.
The first round is drawn when the Pumpers coin launches. Rounds run on every quarter hour after that.
Follow @playpumpersLeaderboard Champions
The board.
Belts won, SOL taken home and best balances at the bell. Only real rounds count.
Nobody has a belt yet. The board fills from the first round after launch. Until then, the arena has a practice round.
Practice nowRules & fairness
The rules.
Every number and edge case, in one place.
The round
- :00 :15 :30 :45A round is drawn on every quarter hour. The bell rings ten seconds after the draw and trading runs five minutes.
- Same chartEveryone trades the same five real minutes of a big coin, replayed from 1-second history and scaled up, with the minute before shown as the pre-chart.
- Mystery coinThe coin stays hidden as ????/USDT until the closing bell.
- SwingsRounds are picked for big moves both ways that finish close to where they started.
Trading
- $1,000Everyone starts with $1,000 of paper money.
- SizeOpen a long or short with 25%, 50%, 75% or 100% of your cash, as often as you like.
- 1x to 5xPick leverage from 1x to 5x. Keys: W long, S short, C close, 1–5 leverage.
- LiquidationA position that loses 95% of its margin is liquidated. That margin is gone, never more; cash you didn’t put up is untouched.
- Late?Join any time before the closing bell and you start with a fresh $1,000, right where the chart is.
- The bellOpen positions close at the closing bell whether you’re there or not.
The pot
- 100% of feesThe pot is all of the Pumpers coin’s creator fees claimed at the round’s draw, paid in SOL to the top balance.
- Can be smallA busy quarter hour makes a fat pot, a quiet one a small one, and it can be zero.
- Two tradersA round needs at least two traders. Fewer, or a voided round, and the pot rolls over to the next round.
- TiesBalances within half a cent are a tie, settled by a number derived from the round’s revealed seed.
- PayoutA SOL transfer from the treasury to the wallet you signed in with, linked on the rounds page.
Fairness
- CommitEach chart comes from a secret 32-byte seed and a stretch of real candles; their sha256 is shown before the bell.
- PlayEveryone gets the same ticks at the same time. Orders fill at the latest tick.
- RevealAt the closing bell the seed and the coin are published so anyone can rebuild the chart and check the hash.
- PayFee claims and payouts are ordinary Solana transactions from the treasury wallet.
Joining
- FreeConnect a Solana wallet and sign one message. No deposit, no stake, never a transaction.
- WalletsPhantom, Solflare and Backpack.
- Where legalPlay where it’s legal for you. Nothing here is financial advice.