Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Alternative UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| O/U 4.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| Philadelphia Union O/U 0.5 | 100% |
| Philadelphia Union O/U 1.5 | 100% |
| Philadelphia Union O/U 2.5 | 100% |
| Atlanta United FC O/U 0.5 | 100% |
| Atlanta United FC O/U 1.5 | 100% |
| Atlanta United FC 1st Half O/U 0.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| 2nd Half O/U 2.5 | 100% |
| Philadelphia Union 2nd Half O/U 0.5 | 100% |
| Philadelphia Union 2nd Half O/U 1.5 | 100% |
| Atlanta United FC 2nd Half O/U 0.5 | 100% |
| Philadelphia Union (-1.5) | 0% |
| Atlanta United FC (-1.5) | 0% |
| Philadelphia Union (-2.5) | 0% |
| Atlanta United FC (-2.5) | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Atlanta United FC O/U 2.5 | 0% |
| Philadelphia Union 1st Half O/U 0.5 | 0% |
| Philadelphia Union 1st Half O/U 1.5 | 0% |
| Atlanta United FC 1st Half O/U 1.5 | 0% |
| Atlanta United FC 2nd Half O/U 1.5 | 0% |
Market context
Philadelphia Union host Atlanta United in MLS, with the “more markets” contract turning on the wider match event rather than a simple win/draw/loss line. A 0% crowd-implied YES price is best read as an inactive or mispriced market rather than a literal statement that the underlying game cannot produce any qualifying outcome, so traders should check whether the platform has stalled, whether the contract was thinly traded, or whether the rule definition is narrower than it first appears.
The recent head-to-head makes a low pre-match price easier to understand: Atlanta beat Philadelphia 3-1 in March 2026, but Philadelphia won 1-0 at Atlanta in May 2025 and had also beaten Atlanta 3-0 in April 2025. Across the last 20 meetings, the series is broadly even, with Philadelphia on 7 wins, Atlanta on 6, and 7 draws, which is the kind of balance that often leaves “more markets” pricing sensitive to the exact settlement rule rather than to the teams’ names alone. On venue, Philadelphia’s stronger home record and Atlanta’s historically mixed returns in this fixture are more informative than the overall head-to-head tally.
The main catalysts are line-ups, late injury news, and whether either side rotates because of schedule congestion, especially if the market is linked to corners, cards, goals, or other contingent match stats. On Polymarket, Kalshi, Betfair, and Smarkets, the same real-world event can display as a probability, decimal odds, or exchange price, so the trader is really comparing fee drag, spread, and KYC access as much as the headline number: Betfair and Smarkets show commission-based exchange pricing, while Kalshi and Polymarket display event-style implied probabilities, which can make cross-platform comparisons look wider than they are once fees and conversion are included.
Methodology
We read Philadelphia Union vs. Atlanta United FC - More Markets from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
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). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative UK has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative UK offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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