LoL: KaBuM! Ilha das Lendas vs Vivo Keyd Stars Academy (BO3) - Circuito Desafiante Playoffs

Platform comparison

Market context

Polymarket has this contract at 0% YES today, which leaves the listed side priced as a near-certain no while the market waits for official resolution on whether the series is played and who wins. The underlying event is KaBuM! Ilha das Lendas versus Vivo Keyd Stars Academy in the Circuito Desafiante Playoffs, a best-of-three upper-bracket quarter-final originally scheduled for 18 August 2026.[1][2][3]

For context, the bracket and match listings show this as a standard online playoff fixture, with the series placed among the upper-quarter-finals and the tournament format set as double elimination with Bo3 upper-round matches.[2][3][6][10] That matters for Polymarket users because the contract settles on the match result if played, but reverts to 50-50 if the fixture is cancelled or never happens, so a zero-priced YES can still move sharply if there is a delay, reschedule, or official no-show decision.[1][4]

The main catalysts are simple: a confirmed start time, any organiser or broadcast update, and whether the match page flips from upcoming to live or completed across results feeds. Recent listings still showed the series on 18 August 2026 at 23:00 UTC, but separate pages also reflected live-score plumbing and post-match status changes, so traders should watch for bracket updates and final reporting rather than assuming the original slot is binding.[1][2][3][4]

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

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

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram 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.