Seattle vs Los Angeles D

This market covers the July 28 MLB interleague contest between the visiting Seattle Mariners and the Los Angeles Dodgers at Dodger Stadium. On the moneyline, the Dodgers are the clear favourite at 69.0% on both Polymarket and Kalshi, with Seattle implied at 31.0% — a 38-point gap that reflects a significant talent disparity between the two clubs. Los Angeles enters at 67–39 and first in the NL West, while Seattle sits at 52–55, third in the AL West. The pitching matchup is central to the odds. The Dodgers are sending Eric Lauer to the mound against Seattle's Luis Castillo. Kalshi markets price Castillo at 80.0% to record 3+ strikeouts and 45.0% to go 17+ outs, suggesting a competent but not dominant outing. Meanwhile, the high-run-total markets tell an interesting story: Kalshi puts the over 3.5 runs at 94.0% and the over 9.5 runs at 48.0%, pointing to a game expected to be moderately high-scoring. Notably, the Dodgers' spread market — LAD winning by more than 3.5 runs — sits at just 32.0%, indicating markets expect a competitive margin even with Los Angeles heavily favoured. On the player side, Cal Raleigh's home-run market at 61.0% for 1+ hits and Freddie Freeman's hits market at 72.0% reflect active prop volume, with Kalshi hosting the bulk of liquidity at over $540,000 on the moneyline alone. The Dodgers are returning home for the first time since before the All-Star break and are expected to activate utility man Enrique Hernandez from the injured list, with closer Edwin Diaz also expected to return Wednesday. With no cross-platform spread on any outcome and Polymarket and Kalshi in lockstep at 69.0%/31.0%, the two platforms present a unified and efficient market with no notable arbitrage opportunity.