Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Total Sets: O/U 2.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 1 Winner | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Match O/U 21.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 2 O/U 8.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 1 O/U 8.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Match O/U 22.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 1 O/U 9.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Match O/U 23.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 1 O/U 10.5 | 100% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse | 0% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 2 Winner | 0% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set Handicap +/-1.5 | 0% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 2 O/U 9.5 | 0% |
| ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse Set 2 O/U 10.5 | 0% |
Market context
Polymarket is pricing Sam Ryan Ziegann to advance at **54%**, which implies only a slim edge over Thanaphat Boosarawongse in this ITF Bali match. Because the contract settles on the player who advances, not merely who starts or leads, the relevant outcome is tied to the actual match result on Polygon using USDC-backed conditional tokens, with the fallback to **50-50** if the fixture is not played or is delayed beyond the market’s rules.
A 54% line is the kind of number that usually reflects a coin-flip matchup with a modest preference for one side, rather than a strong read on form. In ITF men’s events, especially on the lower-tier circuit, pricing can move sharply on thin information because public data on recent results, travel, fitness and draw strength is often sparse. That makes the market more sensitive to late schedule changes, walkovers and retirements than to reputation alone, since those outcomes can change settlement even if one player appears to have the better raw price.
For traders, the main catalysts are the official match order, any last-minute court allocation updates, and whether either player appears in doubles or earlier singles rounds that could affect fatigue or withdrawal risk. The market description also matters operationally: if the match is not completed, a retirement or default can still settle to the advancing player, while a pre-start walkover resolves to 50-50. In practice, the key watchpoint is whether the match actually goes on court within the seven-day window and produces a completed advancing winner.
Sources: 1
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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
- 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 PolyGram. 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.
- 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.
- 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 ITF Bali: Sam Ryan Ziegann vs Thanaphat Boosarawongse on PolyGram
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