Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| CA River Plate | 0% YES | 100% NO |
| Draw (CA River Plate vs. Red Bull Bragantino) | 100% YES | 0% NO |
| Red Bull Bragantino | 0% YES | 100% NO |
Market context
River Plate host Red Bull Bragantino in the Copa Sudamericana group stage, with the market keyed to whether the match is officially settled in River Plate’s favour within the stated window. The current 0% YES price is hard to reconcile with recent form and prior head-to-head context. River won the reverse fixture 1-0 in Bragança Paulista on 1 May, after Bragantino were reduced to ten men, and ESPN’s group table shows River top of Group H on 11 points with two matches unbeaten against the Brazilian side this season. For a programmatic read, the cleanest analogue is to treat this as a live competition-status question rather than a pure scoreline bet: the relevant inputs are fixture kick-off, final whistle, any delay, and whether the competition body confirms the result before expiry.
The main catalysts are team news, rotation, and group-state incentives. Sports Mole’s preview ahead of the return leg noted River’s strong position in the group and expected them to control the tie at the Monumental, while FotMob listed a likely River starting XI featuring Franco Armani, Germán Pezzella and Juan Quintero. Bragantino’s schedule load is another variable to monitor, as their recent domestic and cup congestion was cited in pre-match coverage. Traders running bots or conditional orders should watch for confirmed line-ups, late withdrawals, and any fixture timing changes, because a market priced at 0% can move sharply on a single official update, especially if the event is already broadly expected to be completed within the settlement window.
Methodology
We track CA River Plate vs. Red Bull Bragantino on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- 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.
- 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.
Trade CA River Plate vs. Red Bull Bragantino on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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