Live Oak Plantation's Tacit Agreement won the $250,000 Bob Umphrey Marathon at two miles Saturday at Calder, the stakes highlight of "Extreme Day." The race was originally carded for turf but rained off to the main track.Trained by Marty Wolfson and ridden to victory by jockey Carlos Olivero, the 5-year-old Unbridled gelding covered the distance in 3:37.94 over a track listed sloppy."I expected him to be up front early, and I felt pretty good about it when they went 27 for the quarter and 55 for the half," Wolfson said. "I wasn't surprised at all that he got the distance and he moves up in the slop."The Argentine-bred India Halo finished second, seven lengths behind the winner. Supervisor, the favorite, was another 5 ¾ lengths back in third.Tacit Agreement, sent off at odds of 6-to-1, paid $14.80, $6.80 and $3.80. India Halo, a 6-year-old mare, returned $6 and $3.60, while Supervisor paid $3 to show.Calder's racing secretary from 1993 until his passing on Jan. 2, Umphrey co-designed several of the track's most successful racing concepts, including the "Summit of Speed." Popular with horsemen across the country, Umphrey had a penchant for the unusual, including creations such as the Rocket Man Stakes and the Methuselah Handicap, both held on the "Extreme Day" card.