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Troubleshooting

Dispute Resolution

What happens when a market resolution is disputed and how the UMA oracle handles challenges.

Dispute Resolution

Sometimes market resolutions are challenged. Here's how Polymarket's dispute process works.


How Resolution Works (Normal)

StepWhat HappensTimeline
Event occursReal-world outcome is determinedDay 0
Proposal submittedSomeone proposes the correct outcomeHours
Challenge periodAnyone can dispute if they disagree2-4 hours
ResolutionIf no dispute, outcome is finalizedSame day

Most markets resolve smoothly within hours.


When Disputes Happen

A dispute is filed when someone believes the proposed resolution is incorrect.

Dispute ReasonExample
Wrong outcomeProposer said YES but event didn't happen
Ambiguous rulesMarket criteria unclear
Timing issueEvent happened after deadline
Source disagreementDifferent sources report different results

The UMA Oracle Process

Polymarket uses UMA (Universal Market Access) for dispute resolution:

PhaseDurationWhat Happens
1. Dispute filedInstantChallenger stakes tokens
2. Voting period24-48 hoursUMA token holders vote
3. ResolutionAfter votingMajority decision wins
4. SettlementImmediateMarket resolves per vote

Who Can Dispute?

ParticipantCan Dispute?Requirement
AnyoneYesMust stake UMA tokens
Market tradersYesNo special requirement
Random observersYesMust have UMA tokens

The staking requirement prevents frivolous disputes.


Dispute Economics

OutcomeWhat Happens
Dispute succeedsChallenger gets their stake back + reward
Dispute failsChallenger loses their stake
VotersEarn rewards for participating correctly

This creates strong incentives for honest resolution.


Extended Timelines

ScenarioResolution Time
No dispute2-8 hours
Disputed (clear)24-48 hours
Disputed (complex)48-72 hours
Multiple disputesUp to 1 week

What You'll See on Polyfollow

StatusMeaning
Pending ResolutionWaiting for oracle
DisputedChallenge filed, voting in progress
ResolvedFinal outcome confirmed

Notifications

When disputes affect your positions:

EventNotification
Dispute filed"Market resolution disputed - extended timeline"
Dispute resolved"Dispute resolved - [outcome]"
Payout available"Position resolved - funds available"

FAQ

Can I dispute a resolution?

Yes, but you need UMA tokens to stake. Visit vote.umaproject.org to participate.

Will I lose money during a dispute?

No - your position is safe. Disputes only affect timing, not your ultimate payout (assuming you're on the winning side).

What if the dispute goes against me?

The market resolves according to the vote. If you held the losing outcome, your shares become worthless as normal.


Pro Tips

  1. Be patient - Disputes are rare but add delays
  2. Check UMA - You can watch voting progress at vote.umaproject.org
  3. Trust the process - UMA has resolved thousands of markets accurately
  4. Funds are safe - Your money is locked but protected during disputes