ARCADIA, Calif. (Feb. 4, 2017)–French-born sensation Flavien Prat greatly expanded his glowing resume on Saturday at Santa Anita, as he swept the track’s Late Pick Four by guiding longshot Isotherm to a half length win in the Grade II, $200,000 San Marcos Stakes. Run at a mile and a quarter on turf, Isotherm, who is trained by George Weaver, got the distance 2:00.23.Fourth in the Grade II Mathis Brothers Mile (turf) here on Dec. 26, Isotherm was dispatched today at 7-1 in a field of nine older horses and paid $17.20, $10.40 and $7.20.In a thrilling stretch drive, Isotherm who had been mid-pack early, overhauled French-bred Itsinthepost and Tyler Baze to gain the ascendency close home.“I was hoping he would break well, and he did, so I kinda used that to my advantage,” said Prat, who now leads Tyler Baze in the Winter Meet standings by a 28-21 margin through 24 racing days. “We didn’t go that fast so I was sitting just behind the pace and thought he’d have a good shot. It worked out well. Today, I knew I had some good shots. Everything worked out really well and I’m pretty lucky.”Itsinthepost, who pressed A Red Tie Day while running second to the far turn, took command approaching the sixteenth pole, but was immediately tackled by the winner and had to settle for second, finishing two lengths in front of Flamboyant.Off at 8-1, Itsinthepost paid $9.40 and $6.60.Flamboyant, who was also bred in France, closed good ground under Brice Blanc and was up by a nose over Hi Happy for third. Off at 6-1, Flamboyant paid $5.20 to show.Fractions on the race were 24.34, 49.07, 1:13.71 and 1:37.14.(The Flavien Prat-Late Pick Four paid $421.45).There is an early “Big Game Sunday” first post time at Santa Anita tomorrow of 11 a.m. for an eight-race program.