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Counter Parlays

Counter parlays allow users to bet against existing parlays. If you believe a parlay will lose (any leg fails), you can counter it and profit from the original bettor’s loss.

How Counter Parlays Work

When someone places a parlay, it creates an opportunity for others to take the opposite side:
  1. Original parlay - User A bets $100 that Teams X, Y, and Z all win
  2. Counter opportunity - The vault shows this parlay as available to counter
  3. Counter bet - User B can bet that User A’s parlay will lose
  4. Payout - If ANY leg of the original parlay loses, the counter wins

Counter Probability

The counter probability is simply:
Counter Probability = 1 - Parlay Probability
For example, if a parlay has a 15% chance of winning, the counter has an 85% chance of winning.

Rebates: Better Odds for Counter Bettors

This is where SportToken becomes unique. Counter bettors receive rebates from the fees the original parlay maker paid.

How Rebates Work

When the original parlay was placed, they paid:
  • System fee (0.3%)
  • Dynamic market fees (varies by leg)
The dynamic fee portion becomes a rebate pool for counter bettors:
Total Fee = System Fee + Dynamic Fee
Rebate Pool = Dynamic Fee (available for counter bettors)

Two Rebate Modes

When countering a parlay, you choose how to receive your rebate:

Autobet Rebate (Default)

Rebate reduces your effective cost and boosts your odds.
  • Pay less upfront
  • Get better implied odds
  • More capital efficient

Cash Rebate

Rebate is paid directly to your wallet as cash back.
  • Pay full stake
  • Receive rebate separately
  • Immediate funds

Example: Autobet Rebate

Original Parlay:
  • User A stakes $100 (gross)
  • Pays 5totalfee(5 total fee (0.30 system + $4.70 dynamic)
  • Net stake: $95
Counter Opportunity:
  • Counter stake required: $80
  • Rebate available: $4.70 (the dynamic fee)
  • Your rebate share (100% counter): $4.70
With Autobet Rebate:
  • Effective cost: 8080 - 4.70 = $75.30
  • You pay only 75.30for75.30 for 80 worth of exposure
  • Boosted odds compared to fair value

Rebate Scaling

Rebates scale proportionally:
  • If you counter 50% of the parlay, you get 50% of the available rebate
  • If live odds change, rebate scales with stake changes
  • Multiple users can counter the same parlay (up to 100% total)

Partial Countering

You don’t have to counter the entire parlay:
  • Slider selection - Choose 1-100% of the available amount
  • Multiple counters - Multiple users can counter different portions
  • Live tracking - See what percentage is already countered

Key Rules

  • You cannot counter your own parlays
  • Counter parlays use USDC only (no coin bets)
  • Odds may change if countering with live odds vs entry odds

Cashout

Counter parlays can be cashed out before settlement:
  • Exit early - Take profit or cut losses before games finish
  • Fair pricing - Cashout value based on current probabilities
  • Rebate symmetry - If you received autobet rebate, it’s factored into cashout fee

Why Counter Parlays?

1

Edge the House

Get odds better than fair value through rebates
2

High Win Rate

Counter probability is often 70-90% (since parlays are hard to hit)
3

Help the Protocol

Counter bets reduce vault exposure and risk
Counter parlays create a true peer-to-peer market where users can take either side of a parlay, with rebates incentivizing the counter side.