Padres, Mariners see most betting action at MLB trade deadline - ESPN

After making some of the biggest splashes of the MLB trade deadline, the San Diego Padres and Seattle Mariners emerged as the biggest odds movers and most popular selections for bettors in the futures markets.

The Padres entered Thursday's deadline day with +3500 odds to win the World Series and promptly moved to +2500 at ESPN BET after acquiring pitchers Mason Miller and JP Sears from the Athletics; they moved further to +1600 after getting first baseman Ryan O'Hearn and outfielder Ramon Laureano from the Baltimore Orioles. San Diego also moved from +1800 to +1200 to win the National League pennant.

The transactions surely had some influence on the line movement, but so too did the action coming on them from the betting public. DraftKings reports that, since the deadline, San Diego has taken easily the most money to win this season's World Series at 23%; the next closest is the New York Mets at 14%. ESPN BET said the Padres have garnered 12.5% of the handle since Wednesday, third most in the league.

Bettors will be hoping that the big-time prospect talent San Diego surrendered will be worth it this season — and that it will work out better than previous attempts. At this year's deadline, the Padres traded away five of their top seven prospects, and since 2014, they have traded away eventual stars Trea Turner, Max Fried and James Wood, among others, during the season.

Meanwhile, the Mariners were +2500 at ESPN BET to win the World Series before they acquired third baseman Eugenio Suarez, arguably the biggest prize of the deadline, late Wednesday night. That transaction moved them to +2000, then they moved to +1400 after acquiring first baseman Josh Naylor from the Arizona Diamondbacks in a separate transaction. They also