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
Market context
AFC Ajax and FC Groningen are scheduled to meet in Eredivisie action on 21 May, with the “More Markets” contract asking whether any additional designated market will be launched before settlement. At a 0% crowd-implied YES price, the tape is effectively treating the listing as absent unless the exchange publishes a new sub-market or corrigendum before kickoff. For a power-user, this is usually handled by polling the market metadata and API feed rather than the match page itself, because “more markets” events depend on listing updates, not the result of the game.
Historically, these contracts tend to resolve only when the venue, competition, and timing create room for side markets to be added after the main event is posted, for example team goals, cards, or player props appearing late in the run-up to kick-off. Comparable football listings on major prediction platforms often stay at zero until an actual instrument appears in the market tree, then jump quickly once the contract is created and indexed. In practice, the key distinction is between a fixture being known and a new market being instantiated; the former does not settle YES on its own.
The main catalysts to watch are any late schedule changes, market-creation announcements, or feed delays from the operator. Current match information places Ajax v Groningen at 16:45 UTC, with live football data services already carrying line-ups and match status, so any change would likely show up first as a new listing or an amended event bundle rather than a headline. Programmatically, the relevant checks are whether the event slug gains additional children, whether the market count increases, and whether settlement text changes before the window closes.
Methodology
We track AFC Ajax vs. FC Groningen - More Markets 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
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?
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
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