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
| Portland Fire vs. Indiana Fever | 0% YES | 100% NO |
| Spread -12.5 | 100% YES | 0% NO |
| Spread -9.5 | 100% YES | 0% NO |
| O/U 175.5 | 0% YES | 100% NO |
| O/U 179.5 | 0% YES | 100% NO |
| Spread -13.5 | 100% YES | 0% NO |
Market context
The Portland Fire meet the Indiana Fever in a regular-season WNBA game at Gainbridge Fieldhouse, and the key market question is simply who wins on the night. Across the listed books, Indiana is the clear favourite, but the pricing varies materially: Hard Rock Bet had Fever -12.5 and -950 on the moneyline, while FanDuel showed a similar handicap at -11.5 and -700; Action Network’s snapshot also pointed to a much heavier home favourite than the raw 0% crowd-implied price suggests. For prediction-market readers comparing Polymarket-style shares with Kalshi, Betfair or Smarkets, the main point is that sportsbook odds embed vig and can be converted into implied probabilities, whereas exchange-style venues typically show a cleaner market price before fees. Entry friction also differs: Polymarket access is broader in some jurisdictions than regulated US books, while Kalshi and many sportsbook accounts are gated by KYC and location rules.
The historical frame is a one-game mismatch rather than a close series market. When a market opens around a heavy favourite, the path to the underdog is usually injury news, late rest decisions, or a sharper-than-expected line move rather than a slow drift from public opinion. The available pre-game numbers implied Indiana was expected to control the matchup, but the game itself finished 90-73 to the Fever, which is the kind of outcome that usually justifies a lopsided pre-match price. For traders comparing platforms, the useful lesson is that exchange prices can lag or overshoot when a book is moving on roster news, while sportsbook lines may already be reflecting that adjustment.
The main catalysts to watch are injury reports, confirmed starters, and any late changes to Caitlin Clark, Aliyah Boston or other high-usage Fever players, as those names were central to both the betting market and pre-game props coverage on Hard Rock Bet. The Action Network listing showed a line and total that had already moved from earlier numbers, which is a reminder that pre-tip pricing can shift quickly once line-ups are confirmed. If the game were postponed, settlement would wait for completion; if it were cancelled outright, the market would resolve 50-50.
Methodology
This page compares Portland Fire vs. Indiana Fever specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.
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.
- 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?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
Trade Portland Fire vs. Indiana Fever on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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