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, with the market settled by the result inside the scheduled 00:30 UTC kick-off window. The initial 0% YES price implies no active liquidity when the market was opened, so the practical question is whether fresh deposits arrive quickly enough to build a usable book before line-up confirmation and the first in-play moves.
The closest form guide points towards River. They won 1-0 in São Paulo on 1 May with a stoppage-time header from Lucas Martínez Quarta, then drew 1-1 away to Bragantino on 20 May, leaving River top of Group H on 11 points and unbeaten in the section, per ESPN. Sports Mole’s preview also noted River had won four straight in all competitions and nine of their last 11 Sudamericana home matches at the Monumental, which is the sort of record that usually attracts the first wave of cash once payment rails clear.
For market depth, the key catalysts are funding flows rather than football news. If deposit options are smooth — SEPA for bank transfers, Klarna for instant card-linked top-ups, or USDC for faster crypto settlement — liquidity can appear close to kick-off; if there is friction, the book can stay thin despite the fixture’s profile. Watch for late team news and any confirmation of the unchanged Group H standings after the 20 May draw, because those details tend to trigger the next round of entries once funds are actually on platform.
Methodology
This page reviews CA River Plate vs. Red Bull Bragantino across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against 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 it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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
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