MLB All-Star Game

Platform comparison

Market context

The American League faces the National League in Philadelphia on 14 July for the 2026 MLB All-Star Game, with the contract currently pricing an American League victory at 45% on Polymarket. This on-chain market, settled in USDC on Polygon via conditional tokens, reflects a slight underdog stance for the AL despite traditional betting lines favouring the National League at -142 moneyline and a 1.5-run spread [2][5].

Historically, All-Star Game outcomes have swung sharply based on roster construction and managerial aggressiveness, often diverging from pre-game moneyline favourites. In recent years, the National League has held a structural edge in prediction markets, with Kalshi assigning them a 59% implied probability as of 10 July, compared to the AL’s 41% [1]. The current 45% Polymarket price suggests traders are pricing in a tighter contest than external markets, possibly anticipating a closer run total or a late-inning rally from AL sluggers.

Traders should monitor final roster confirmations and any late injury updates, as All-Star rosters can shift after initial announcements. The game total is set at 7.5 runs, meaning offensive catalysts like starting pitcher durability or bullpen usage will directly impact win probability [3]. With settlement locked until 22 July 2026, price volatility will hinge on real-time game flow rather than pre-event speculation, making live USDC position management critical for active participants.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews MLB All-Star Game across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

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

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'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 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.