PGA Tour: 3M Open Top 20

Platform comparison

Market context

The 3M Open is underway at TPC Twin Cities in Blaine, with the PGA Tour listing the event for 23–26 July and the field already set at 144 players.[2][3] A crowd-implied 81% to finish top 20 signals a market that is pricing in either a strong pre-tournament favourite or a player with a solid recent run rather than a true longshot; in golf markets, that level usually reflects a profile that can survive variance over four rounds, but still leaves room for course fit and putting to swing the result. The official tournament page also shows a standard PGA Tour event with a $8.8 million purse and 500 FedExCup points, which tends to attract a deeper-than-average field but not the very strongest major-championship tier.[4]

For comparison, top-20 markets in regular PGA Tour stops can move quickly once tee times, practice-round reports and first-round scoring patterns land, because one poor opening round can compress a high-probability position into a much shakier one. The main catalyst here is the event itself rather than any off-course news: the field is locked, play has started, and traders will mostly lean on leaderboard movement, withdrawal risk, and whether the player’s opening 18 holes match the expectation implied by the current price.[1][2] Golf News Net’s field report notes that the tournament entry deadline has passed, which removes late field-shape uncertainty and focuses attention squarely on form, pairing, and scoring conditions at Blaine.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks PGA Tour: 3M Open Top 20 across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.