Arizona Diamondbacks vs. San Diego Padres

Platform comparison

Market context

The real-world event is an MLB game tonight between the Arizona Diamondbacks and San Diego Padres, scheduled for 9:40PM ET, where the market resolves to the winning team. Current crowd-implied probability sits at 46% YES for Arizona, reflecting a tight contest where historical data shows the Padres have won 160 of 299 games since 2003, averaging 4.5 points per game compared to Arizona’s 4.4[3]. In the last 10 matchups, the series has been evenly split with no dominant streak, suggesting the 46% figure aligns with comparable cases where home-field advantage and recent form create near-50% odds rather than clear favourites[1].

Traders approaching this programmatically should monitor starting lineups released two hours before the game, as pitcher rotations directly shift conditional order probabilities. A recent report notes the Padres’ bullpen has been volatile in July, with three consecutive games exceeding 4.5 runs allowed, a dependency that could erode Arizona’s edge if the starting pitcher exits early[2]. Watch for weather updates from the venue, as wind speed above 15mph correlates with higher run totals in night games, and confirm no postponement notices, which would keep the market open until completion[6]. The settlement window ends 2026-07-14, but the game itself concludes tonight, making real-time data feeds critical for bot execution.

Sources: 1 · 2 · 3 · 4 · 5

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 Polymarket Bot UK, which mirrors the Polymarket order book directly.

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

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 Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.

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.