propSPACE
propSPACE hosts free fantasy trading contests where users draft players and set custom lines on fantasy points.
propSPACE Fantasy Trading And Prediction Markets For Traders
What is propSPACE?
propSPACE is a free fantasy trading competition built on the functionSPACE protocol that let users draft World Cup players, set custom payoff lines and ranges on fantasy points, and compete for real USDC prizes using a fresh play money bankroll each round.
Ready to try propSPACE?
Open the official site and get started in a few clicks.
propSPACE Overview
propSPACE is a free fantasy trading competition that runs on the functionSPACE protocol. It lets you draft soccer players, set custom lines or ranges on their expected fantasy points, and compete for real USDC prizes using a reset $1,000 play money bankroll each round.
The competition ran during the 2026 World Cup knockout stages. Each round, you pick one forward, one midfielder, and one defender from the available fixtures. You then adjust a line on each player's projected fantasy points or draw a range and choose inside or outside. The multiplier updates live based on how far you deviate from the crowd projection. Closer to consensus means safer, lower returns. Bigger deviations mean higher potential payouts. Your trades stay private until the round closes, and the leaderboard ranks net bankroll profit after settlement.
What sets propSPACE apart is the payoff structure. Traditional sportsbooks hand you a fixed over-under line. Standard fantasy platforms force you into binary win-loss outcomes. propSPACE lets you design your own payoff shape against crowd projections and settle against actual fantasy scores. You can express a tight confidence interval, a wide safety net, or a precision call. All of these shapes trade against the same shared liquidity pool, so capital stays efficient instead of fragmenting across separate markets.
This competition is built for sports and fantasy traders who want more expressive tools than fixed lines offer. If you have ever held a nuanced view, like a player landing in a specific point range, and could not express it on a standard platform, this format solves that problem. It also appeals to anyone evaluating new market designs that treat conviction as a continuous asset rather than a discrete bet.
The $1,000 fresh bankroll each round keeps the playing field level. Strong performance in one stage does not carry forward as an advantage. Weekly prizes of $1,000 USDC went to top performers from the Round of 32 through the semifinals, and a $2,500 grand prize rewarded the best cumulative run. The total pool reached $6,500 USDC, later expanded with partner support to around $10,000.
The underlying engine remains available for other applications through a developer SDK. The @functionspace/core package lets builders design any payoff in a single call and embed continuous markets into their own products. Community projects already include narrative index vaults, market relationship graphs, and calibration tools. This makes the protocol a reusable primitive for prediction products, research tools, media experiences, and structured products.
If you want to participate, the entry process is simple. Sign up free at propspace.fun, receive your virtual bankroll, select your three players, set your lines or ranges, and stake your desired amount. Positions lock at kickoff. After settlement, review your net return and check the private leaderboard. Since the World Cup competition ended, the same mechanics remain available through other applications built on the functionSPACE engine.
propSPACE Key features
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Draft your squad
Users pick one forward, one midfielder, and one defender each round. They receive a fresh $1,000 play money bankroll to fund these picks.
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Set custom lines
Users move the line on a player's expected points to call over or under. The multiplier changes in real time based on the distance from the crowd projection.
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Predict point ranges
Users draw lower and upper bounds around a player's expected points. Tighter ranges return higher multipliers and wider ranges offer more safety.
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Keep positions private
The system hides squads and trades from other participants until the market settles. This rule prevents herd behavior during the round.
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Reset bankroll each round
The protocol resets balances at the start of every knockout stage. One strong round does not give a player an advantage in the next stage.
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Trade one shared pool
Users trade all custom lines and ranges against the same market state. This design keeps all the liquidity in one place instead of separating it by product type.
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Resolve outcomes with capital
Participants bond capital to assert or challenge the final numerical value. The protocol slashes incorrect claims and rewards accurate assertions.
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Build with the SDK
Builders use the core software package to design any payoff in a single call. Developers can add these continuous markets directly into their own apps.
propSPACE Fees
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No entry fee propSPACE charged no entry fee and participants received a fresh $1,000 virtual bankroll each round.
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No trading fees The entire experience used play money with zero trading fees.
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Weekly prizes Top performers from the Round of 32 through the semis split $1,000 USDC each week.
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Grand prize The best cumulative run across all rounds earned a $2,500 USDC grand prize.
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Protocol fees unpublished Specific fee schedules for production markets on functionSPACE are not fixed in public materials and depend on the application layer.
How to use propSPACE
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Sign up free
Create an account at propspace.fun before or during the active competition window.
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Get your bankroll
Receive a fresh $1,000 play money bankroll at the start of each knockout round.
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Draft your squad
Select one forward, one midfielder, and one defender from the available fixtures for that stage.
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Set your projections
For each player, review the crowd projection. Move the line to your target value or draw a range, then confirm your call.
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Stake your bankroll
Choose how much of your bankroll to stake on each position. Positions lock at kickoff times.
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Review your results
After settlement, check your net return added to the bankroll. View the private leaderboard once the round closes.
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Repeat each round
Play through subsequent knockout rounds. Your cumulative performance across all rounds determines the grand prize ranking.
propSPACE Screenshots
propSPACE Review
Pros
- You can draw custom payoff shapes like tight ranges instead of picking from fixed over under lines.
- All payoff types share one liquidity pool so capital is not split across separate markets.
- Your trades stay private until the round closes, which prevents copy trading.
- Every knockout round gives you a fresh $1,000 bankroll so no one carries an advantage from prior rounds.
- The competition is free to enter and pays out real USDC prizes to top performers.
- The open SDK lets developers embed the same continuous market engine into their own applications.
- An adversarial resolution layer uses bonded capital to settle outcomes rather than depending on external oracles alone.
- The project published results and winner names publicly with partners like Polysights co-sponsoring the prize pool.
Cons
- The competition runs only during specific sports events.
- Full on-chain deployment is not finished yet.
- Users must learn continuous payoff concepts before they can trade.
- Prize pools stay small compared to larger prediction platforms.
- Documentation and tooling are still rough around the edges.
- Participants cannot win money outside the fixed prize structure.
- Multi-chain support is still in progress.
Our verdict
propSPACE let users draft soccer players and set custom lines or ranges on fantasy points during the 2026 World Cup knockouts, with a reset $1,000 play-money bankroll each round and real USDC prizes for top performers. The continuous payoff system from the underlying functionSPACE protocol is the real draw, letting you express views like tight scoring ranges that a standard sportsbook cannot offer. The competition runs only during specific sporting events, the prize pool of roughly $10,000 USDC is small compared to larger platforms, and the payoff concepts require some learning if you are used to fixed lines. Sports and fantasy traders who want more precision than over/under bets should try it, and developers should explore the open-source SDK to embed the same continuous market engine in their own products. The project is early and the multi-chain roadmap is incomplete, but the World Cup run delivered working software and transparent prize payouts.
Is propSPACE safe & legit?
functionSPACE, a Melbourne-based team with experience at Banxa, Sky, and Nethermind, built propSPACE. The project raised a $1.25 million pre-seed led by Maven 11, and partners like Polysights co-sponsored the prize pool. No reports of unpaid prizes or operational failures surfaced after the competition closed, and users traded with play money, so the only risk was time.
X account intel @functionspaceHQ
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Based in Australia
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Joined X May 2025 1 year ago
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Username changes 3 renames last on Aug 30, 2025
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Signup source Web
Public profile signals from X. Use as one input alongside other due-diligence.
Wallet blacklist scan checked Jul 29, 2026
- MetaMask Not flagged
- Phantom Not flagged
- ScamSniffer Not flagged
- EtherAddressLookup Not flagged
- Keplr Wallet Not flagged
Domain propspace.fun checked against public crypto wallet blacklists.
propSPACE FAQ
What is propSPACE?
How is this different from a regular sportsbook?
Did it cost money to play?
What is functionSPACE?
Who backed the project?
propSPACE Updates
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Over the last few weeks we ran a World Cup trading competition where nobody bet on who wins.
Instead, traders picked players and designed the exact payoff they wanted over their fantasy points: set your own line, bracket any range, or call the number and get paid on how close you land.
That's the idea behind functionSPACE: payoff markets.
https://functionspace.dev/casestudies/worldcup/2 more in this thread
A normal market sells you a fixed bet. A payoff market prices any shape you can draw over a numerical outcome, in one shared liquidity space. A yes/no bet, an over/under, an option, a precision forecast: each is just one shape in the same space, and they all deepen the same liquidity.
The World Cup was the test. Four apps ran four different trading experiences on one unchanged market layer:· propSPACE (http://www.propspace.fun), our demonstration app: pick your squad, set your own lines · @Polysights @kelvon_ai : the same user-defined ranges and over/unders, directly in their interfaces · @trepa_io asked us for their native model: name your call, tighter confidence pays more. Same engine, zero changes · and for the semis, a Messi v Kane duel priced on one number: the fantasy-point differential.
120+ markets traded and settled across three weeks, enabling a variety of payoff shapes to trade against each other.
Different trading modes shouldn't be different liquidity silos across different applications. That's the unlock with Payoff Markets.
Full case study, with the live interfaces and the trading data → https://functionspace.dev/casestudies/worldcup/- 7 replies
- 8 reposts
- 48 likes
- 2.7K views
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⚽️ The propSPACE World Cup competition is a wrap and we have our overall winners.
Congratulations to our winners and all who participated.
Special thank you to our primary partner @Polysights for co-sponsoring with us to give traders a $10k USDC prize pool.
And a big thank you to @trepa_io and @kelvon_ai for jumping on board and giving their users a novel prediction competition to enjoy.
Stay tuned to learn more about how http://functionspace.dev makes this possible.- 5 replies
- 7 reposts
- 51 likes
- 4.1K views
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Introducing http://onprediction.xyz: the best content on prediction markets, all in one place.
> live news terminal
> curated research library
> forum with actual builders
> learn new concepts
> ask nerd questions
For people that build, research and invest in prediction markets.- 5 replies
- 2 reposts
- 22 likes
- 2.1K views
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Argentina 🇦🇷 vs Spain 🇪🇸
Our FREE $10K final ends tomorrow + $250 for whoever has the better game.
Messi: 8G, 4A, 8.0 FP avg over his last 3.
Yamal: 1G, 3.7 FP avg.
Projections favor Messi. Can the future shock the GOAT?
Lock in your picks👇
https://www.polysights.xyz/competitions/world-cup-knockouts-2026
- 14 replies
- 7 reposts
- 35 likes
- 3.9K views
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@functionspaceHQ Lestgoo yamal 🤣
- 1 reposts
- 4 likes
- 162 views
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🏆⚽️ THE FINAL. $10k USDC GIVEAWAY.
Come try the most novel prediction format in the World Cup.
Will Messi continue to dominate? Or will Yamal wake up and show his player of the year form?
Choose for yourself with this bonus market.
FREE TO PLAY.1 more in this thread
Let's close the loop on this one. Sign up at: http://propspace.fun
- 11 replies
- 6 reposts
- 58 likes
- 2.4K views
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Last chance to win $4,500 for FREE
After 103 matches, it all comes down to this:
Spain 🇪🇸 vs Argentina 🇦🇷
Lock in your picks for the @Polysights × @functionspaceHQ Final Knockout Challenge before kickoff ⬇️
https://www.polysights.xyz/competitions/world-cup-knockouts-2026?_gl=1*us8suq*_ga*MTQ5NDM0MDY3My4xNzc5OTAzNDg5*_ga_HF6FBXWYMQ*czE3ODQyMjU1NjQkbzY4JGcxJHQxNzg0MjI1NTc5JGo0NSRsMCRoMA..
- 14 replies
- 10 reposts
- 44 likes
- 5.6K views
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Stoked to come chat with builders, and bringing along @0xjorgeth, a mathematician, mech designer and world class ability to make complex easy to understand!
@functionspaceHQ- 2 replies
- 2 reposts
- 9 likes
- 586 views
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🏆⚽️ BONUS MARKET is here.
Jump in to trade THE GOAT 🐐 v THE KING 👑.
Think Messi scores more fantasy points? Take "Messi".
Want to predict the margin? Trade "Messi by X or more" and juice up that return.
Trades contribute to Grand Prize PnL.
FREE TO PLAY.
$10k USDC in prizes.1 more in this thread
Sign up at: https://app.propspace.fun/- 9 replies
- 5 reposts
- 56 likes
- 2.9K views
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⚽️🏆 France v Spain.
Who will shine? Mbappe? Yamal?
Make your picks, set your own line.
REMEMBER, winning PNL from Semi-Final counts towards the GRAND PRIZE.
$10k USDC in total and FREE TO PLAY.- 8 replies
- 4 reposts
- 38 likes
- 1.6K views
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We have something cooking for the 🐐 GOAT v 👑 KING.
Free to play.
$10k USDC in prizes.
Sign up now: http://app.propspace.fun- 6 replies
- 4 reposts
- 41 likes
- 1.3K views
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Excellent article by our friend Lauris, one of the sharpest thinkers in the world at the intersection of Prediction Markets and financial engineering,
- 5 replies
- 2 reposts
- 33 likes
- 1.7K views
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⚽️🏆There's still time to prove you've got the World Cup alpha.
$10k USDC total prizepool.
$1500 up for grabs in the semi-finals.
Free-to-play.
Want to experience the future of predictions? Sign up details below.3 more in this thread
Sign up via our sponsor partner: https://www.polysights.xyz/competitions/world-cup-knockouts-2026also at: http://trepa.ioand: http://kelvon.com- 9 replies
- 3 reposts
- 56 likes
- 1.5K views
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