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

Platform comparison

Market context

Once Upon A Team’s BO3 against ZennIT in the Road Of Legends regular season is the real-world event behind this contract, and the market is already pricing a **100% YES** outcome. That is materially firmer than the broader pre-match view on comparable odds boards: Polymarket’s own team page shows the same fixture at roughly **56% Once Upon A Team / 44% ZennIT**, while sportsbook-style listings and tip sites around prior meetings have often kept the teams much closer, with some markets even flipping the favourite depending on map handicap and roster context.[14][5][11]

Historical results do not fully support a 100% certainty read. The head-to-head record is mixed across sources, with ZennIT ahead in several long-run summaries, but Once Upon A Team won the most recent meeting on 14 May 2026 by **2–1**.[4][1] Earlier in the year, however, ZennIT also beat Once Upon A Team **2–0** in Road Of Legends play, which is one reason analyst-style previews have generally treated this pairing as competitive rather than lopsided.[5][15] In cross-platform terms, the crowd-implied probability is far above both the historical series balance and the indicative pricing on prediction markets, so any final settlement likely reflects certainty about a played result rather than confidence in a particular winner.

The main catalysts to watch are administrative rather than tactical: whether the match was actually completed before the settlement window closed, whether there were schedule shifts from the original August 4 slot, and whether any official result page matches the event being referenced. The market rules also matter: a cancellation, tie, or delay beyond seven days without a winner would settle to **50-50**, which can diverge sharply from a simple win/loss assumption.[17] Because the event is already listed as finished on some results trackers, the key check for traders is not live form but whether the official competition record confirms a completed BO3 and the named winner.[17][2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.