LoL: Once Upon A Team vs ZennIT (BO3) - Road Of Legends Regular Season

Platform comparison

Market context

Polymarket is pricing the *Once Upon A Team vs ZennIT* BO3 at **100% YES**, which leaves virtually no spread on the contract itself even though the market still settles through USDC on Polygon via conditional tokens. For Polymarket users, that means the trade today is less about directional opinion and more about whether the official result lands cleanly inside the rules: a completed match resolves to the winner, while a cancellation, tie, or delay beyond seven days pushes the market to 50-50.[7]

The historical frame is straightforward: these teams have repeatedly produced a result rather than an ambiguous outcome, and prior head-to-head records have generally favoured ZennIT, though Once Upon A Team won their most recent documented meeting 2-1 on 14 May 2026.[1][13] Comparable listings also suggest the series has tended to be competitive rather than one-sided, with market pages and match archives showing a pattern of BO3s that end in a decisive scoreline rather than a void.[1][6][11] That matters because a 100% quote can still mask operational risk, even when the underlying matchup looks effectively settled.

The main catalysts a trader should watch are simple: whether the series starts on the scheduled date, whether the official organiser confirms the result promptly, and whether any schedule change slips the match outside the seven-day window that would force a 50-50 outcome.[7] The market description points to Gol.gg as the resolution source, with credible reporting only becoming relevant if final results are not published within two hours of conclusion.[7] If there is a late roster change, postponement, or technical issue, the on-chain contract will still resolve only when the match state matches the documented rules rather than the live price.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews LoL: Once Upon A Team vs ZennIT (BO3) - Road Of Legends Regular Season across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Alternative UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.