🚀 BullBookie: Zero-Risk Sports Prediction Platform on Cardano - Fund 14 Proposal

Developers Cardano Projects
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1

Hello Cardano Community! :bullseye:

I’m excited to introduce BullBookie, a revolutionary zero-risk sports prediction platform submitted for Project Catalyst Fund 14. We’re building the first platform where users can enjoy sports predictions while protecting their principal investment through innovative tokenomics and smart contract architecture.

:link: Quick Links

:light_bulb: What Makes BullBookie Unique?

Zero-Risk Innovation: Users stake BBWIN tokens on sports outcomes but always get their principal back minus a small service fees - win or lose!

Advanced Tokenomics:

  • 1.62B total supply with 520M circulating

  • Self-sustaining reward distribution system

Vietnam Development Partnership: Professional agency handling phased development including smart contracts, ICO/IDO, platform functionality, and mobile apps with rigorous security audits.

:game_die: How It Works

  1. Stake BBWIN tokens on sports event predictions

  2. Winners receive principal + proportional rewards based on staking

  3. Losers get principal back minus small service fees

  4. A % of fees redistributed as rewards to incentivize participation

:money_bag: Revenue Model

  • 5%-10% service fee on stakes

  • Some fees distributed as rewards, some to BullBookie operations

:bullseye: Why Fund BullBookie?

:white_check_mark: Addresses real market need in $85B+ sports betting industry
:white_check_mark: Innovative risk-free model attracts mainstream users to Cardano
:white_check_mark: Strong technical foundation with experienced development team
:white_check_mark: Clear milestone-based delivery with transparent budget allocation
:white_check_mark: Comprehensive security audits and ongoing support planned

:speech_balloon: Community Feedback Welcome!

We’re in the Community Review phase (ending September 5th) and would love your thoughts on:

  • Technical implementation approach

  • Tokenomics structure and sustainability

  • UI/UX and market positioning

  • Any concerns or suggestions for improvement

Your feedback helps us refine BullBookie and demonstrates community engagement to reviewers and voters!

:ballot_box_with_ballot: Next Steps

  • Community Review: Now until September 5th, 2025

  • Voting Snapshot: September 11th, 2025 (9:45 PM UTC)

  • Voting Phase: September 22 - October 6, 2025

Thank you for reading and we appreciate any questions, feedback, or support for BullBookie! :folded_hands:

Follow our progress and join the discussion. Let’s bring zero-risk sports prediction to the Cardano ecosystem together!

4

How is it “zero-risk” if people have to buy BBWIN tokens that could lose their value while “staked” in a bet?

Or do BBWIN tokens directly represent ADA that are staked and are guaranteed to be able to be swapped back to ADA?

So, what can be won in this system is limited by the constantly declining Cardano staking rewards? Is that interesting enough for users?

Can you give realistic example calculations of what this would look like in reality?

To be totally honest, losers also lose the profit they could have made when not locking their assets in this system.

Not all fees since two lines below you say:

Do you have a calculation how large the fees have to be to sustain your operation?

5

Do you plan to run a stake pool yourself for that?
If not, how is the decision which pool to stake to made?
Are BBWIN holders kind of a DAO that can vote on that or does the BullBookie operation decide?

6

Hi @HeptaSean, wow, great questions!

Thanks for taking the time to go through BullBookie’s proposal, it means a lot :heart:

Let me answer all your questions:

1- “How is it “zero-risk” if people have to buy BBWIN tokens that could lose their value while “staked” in a bet?

Or do BBWIN tokens directly represent ADA that are staked and are guaranteed to be able to be swapped back to ADA?”

ANSWER: Zero-Risk in BullBookie’s context refers to outcome risk. When you stake BBWIN tokens on a sports prediction, BullBookie’s Principal Protection guarantee, ensures users receive their Net Principal (full principal minus service fees) no matter the outcome.

BBWIN utility tokens themselves will trade on the open market, so the value of the token can fluctuate. However participants will be able to unstake their BBWIN’s Prediction Stake anytime, receiving their Net Principal (full principal minus service fees) in their wallets instantly. If a user decides to retrieve their Prediction Stake before the rewards are distributed, the user forfeits any claim on rewards if the prediction is a winner.

2- “So, what can be won in this system is limited by the constantly declining Cardano staking rewards? Is that interesting enough for users?

Can you give realistic example calculations of what this would look like in reality?”

ANSWER: The winnings in BullBookie’s ecosystem are not directly tied to Cardano’s native staking rewards. Instead, they depend on the service fees collected from users staking BBWIN tokens on sports predictions. Therefore, size of the rewards depend entirely on the number of participants and number of winners.

For a realistic super simple example calculation, lets assume that:

  • 1000 users stake on a football matchweek staking a total of 2M BBWIN tokens. (2000 BBWIN average net stake each to make it simple)

  • Total fees to be distributed as rewards 100K BBWIN

  • Total winners 100

  • A user that net staked 2000 BBWIN would receive approximately 3000 BBWIN back in the wallet

Note that this example is very simple to give you an idea of a realistic rewards size. At this time without having users volume is hard to estimate with so many variables. There will be other incentives like time multipliers and more complexity into the calculation…

3- “To be totally honest, losers also lose the profit they could have made when not locking their assets in this system.”

ANSWER: Users will be able to recover the Net Principal from their Prediction Stakes at any time, with instant recovery. (The will forfeit any claim to winner rewards if they unstake their predictions before distribution though)

I understand the trader’s perspective or course, but what I am trying to achieve with BullBookie is to make sports prediction fun, safe and rewarding for sport enthusiasts, as a way to engage with their favourite sports and athletes.

Token price can fluctuate, hence BullBookie will never try to lock users from selling their assets if crypto is tanking. What I have included in my tokenomics design are measures for anti-whale manipulation, anti bot-abuse and anti-snipping but of course, once we launch BBWIN in the open market price will do its own thing…

4- “Fees redistributed as rewards to incentivize participation

Not all fees since two lines below you say”

EDITED: Post edited to make clear is a percentage of the fees what will be redistributed as rewards.

5- “Do you have a calculation how large the fees have to be to sustain your operation?”

ANSWER: Great question!

The challenge was to provide a Principal Protection Guarantee, maintaining the service affordable to our users and profitable to BullBookie at the same time. Thanks to Cardano EUTXO model and BullBookie’s unique ecosystem design and tokenomics, even in the unlikely scenario most people win their predictions for a few events, BullBookie will remain sustainable.

6- proportional rewards based on staking

“Do you plan to run a stake pool yourself for that?
If not, how is the decision which pool to stake to made?

ANSWER: Correct! BullBookie will run its own staking pools.

7- “Are BBWIN holders kind of a DAO that can vote on that or does the BullBookie operation decide?”

ANSWER: We are planning for BBWIN holders to have a role in governance for updates, improvements, sports coverage and other decisions.

Day-to-day operations and project execution will be managed by BullBookie’s team and partners. The operational decisions are therefore primarily handled by the BullBookie team, while we will introduce community input through BBWIN holders’ participation. At the moment we are focused on getting the project off the ground but as BullBookie’s consolidate its position, community engagement will be key to make sure we are doing something our users want to participate in.

Again, thank you for your comments! If you have any other questions, suggestions or feedback please let me know.

Best, Santiago

7

I would call that a noteworthy risk.

… but that is at least a good design.

Thanks for the clarification! I was confused by the use of “staking”. So, “staking” is this case is just betting in your protocol (and as you said above that does not include locking the tokens).

This would be a fee of at least 5% (plus probably quite a bit more for operating the system).

So, this is mostly equivalent to a – non-risk-free – bet where each of the 1000 users bets 100 BBWIN each for a pot of 100 kBBWIN and the 100 winners receive 1000 BBWIN each, while the other 900 lose everything.

The only difference is that users of the “risk-free” system have to additionally have 2000 BBWIN that they put in and get out again unmodified. They still risk the fees which have to be considerable because they are the only source for the winnings as well as the operation.

Or, to put it another way, the requirement that you have to have the principal to put in – that fulfils no further role in the system – is the protection against risky gambling. For the toy example above, you have to have 20 times what you want to gamble with – for 100 BBWIN that you want to risk, you have to have 2000 BBWIN as no-risk principal, but if you are rich enough, you can still choose to risk as much as you want, 1000 BBWIN by putting in a principal of 20 kBBWIN, 1 million BBWIN by putting in 20 million BBWIN, ….

I don’t see what feature of the protection guarantee ensures profitability for you, the operator.

What in this design is EUTxO-specific? You also claim that in the proposal itself. But I can’t see anything here that could not also be implemented on an account-based blockchain. That’s not a problem at all. A lot of viable service ideas do in principle work just as good on Ethereum as on Cardano. But if a technological claim that something uses unique features of Cardano is made, they should be substantiated.

8

Hi @HeptaSean,

thanks again for digging into the mechanics! Your feedback is invaluable to sharpen our messaging.

Let me answer all your questions below:

1- “Thanks for the clarification! I was confused by the use of “staking”. So, “staking” is this case is just betting in your protocol (and as you said above that does not include locking the tokens).”

ANSWER: BullBookie uses the specific wording “Stake a Prediction” as the most accurate terminology. It is a “Stake” as it is a novel, on-chain mechanism where the Net Principal is always returned , unlike a traditional bet. On BullBookie, a “Prediction” is not a “Bet” since the Net Principal is protected and the transaction has no intrinsic risk dependent on the outcome of the event. Users participate in a time- and volume-indexed pool with a guaranteed return of net principal—unlike a bet, where you can lose your wager entirely. And yes, that is correct tokens, Net Principal tokens are not locked. If the participant decides to withdraw the Staked Prediction, the Net Principal is returned immediately, but the user forfeits any potential rewards.
_

2- “This would be a fee of at least 5% (plus probably quite a bit more for operating the system).”

ANSWER: I can confirm the service fee on the participant’s own principal, or “Principal Fee” is a 5%.
_

3- “So, this is mostly equivalent to a – non-risk-free – bet where each of the 1000 users bets 100 BBWIN each for a pot of 100 kBBWIN and the 100 winners receive 1000 BBWIN each, while the other 900 lose everything.

The only difference is that users of the “risk-free” system have to additionally have 2000 BBWIN that they put in and get out again unmodified. They still risk the fees which have to be considerable because they are the only source for the winnings as well as the operation.

Or, to put it another way, the requirement that you have to have the principal to put in – that fulfils no further role in the system – is the protection against risky gambling. For the toy example above, you have to have 20 times what you want to gamble with – for 100 BBWIN that you want to risk, you have to have 2000 BBWIN as no-risk principal, but if you are rich enough, you can still choose to risk as much as you want, 1000 BBWIN by putting in a principal of 20 kBBWIN, 1 million BBWIN by putting in 20 million BBWIN, ….”

ANSWER: We bring fundamental changes to the prediction markets, with a platform that is transparent, fun, rewarding and protects the user above all. BullBookie has the potential to become a disruptor providing a fair and safer environment that rewards the user. At BullBookie there is a service fee to sustain operations and reward the winners, but everyone pays the same fees, regardless of the outcome. The service fees are not at risk, they are the cost of using the platform and they are paid upfront, before staking a prediction.

In contrast, betting operators not only take the wager from the user if the user doesn’t win. In addition they use odds to increase the operator margins and cripple winners’ risk/reward potential. On top of that, they may charge service fees and exchange commissions, and almost certainly you pay a hidden sportsbook vig baked into the odd.

To put this in perspective with the previous example:

With BullBookie you stake a prediction 1000 BBWIN after paying 5% service fees:

  • You win - You get 1500 to 4000 back depending on volume of participants, winners, time, and other variables (500 to 3000 profit)
  • You don’t win - You get 1000 back (0 losses)
  • You paid around 100 on service fees to use the platform

With a betting operator you bet 1000.

  • You may have to pay a fee depending on operator
  • You likely have to pay commission on exchanges (2%-5% on net winnings)
  • You almost always pay a sportsbook vig (it’s baked into the odds to worsen your returns)
  • If you bet for a favourite with 60%+ chances, if you win you get 1100 to 1800 back (100 to 800 profit)
  • If you bet has 30% to 50% chances, if you win you get 1800 - 3300 back (800 to 2300 profit)
  • If you bet for a clear underdog under 30% chances, if you win you get 4000 to 10000 (3000 to 9000 profit but very unlikely outcome… imagine Andorra winning the World Cup :joy:)
  • If you don’t win, you make a full loss of your 1000 principal. You lose your wager entirely.

As you can see betting operators push a complex structure with fees, hidden charges and odds designed to maximize their profits.

We feel BullBookie proposes a fundamentally different model, transparent, fair and rewarding to participants. We respect all opinions and points of view of course.
_

4- “The challenge was to provide a Principal Protection Guarantee, maintaining the service affordable to our users and profitable to BullBookie at the same time.

Q- I don’t see what feature of the protection guarantee ensures profitability for you, the operator.”

ANSWER: The Principal Protection Guarantee protects the user. The challenge was to design a unique and novel ecosystem that keeps this promise, at affordable service fees for participants, while ensuring BullBookie’s sustainability
_

5- “What in this design is EUTxO-specific? You also claim that in the proposal itself. But I can’t see anything here that could not also be implemented on an account-based blockchain. That’s not a problem at all. A lot of viable service ideas do in principle work just as good on Ethereum as on Cardano. But if a technological claim that something uses unique features of Cardano is made, they should be substantiated.”

ANSWER: Cardano’s EUTXO allows us to resolve multi-outcome pools in one transaction, manage independent UTXOs per event, and guarantee transparent fee calculation on-chain. Our model sustainability is achieved by combining Cardano’s EUTXO model with BullBookie’s unique ecosystem design and tokenomics. As far as we know, BullBookie model design is novel and capable of delivering something that has never been done before.

:folded_hands: Again, thank you for your questions and comments. This is exactly what we need to understand how to word our message and mission, and to learn more about our audience.

Any further questions or clarifications please let me know!

All the best

Santiago

Founder @BullBookie

Fund 14 Proposal