A combination of cold temperatures and a lightning-fast track helped produce track records in back-to-back races at Mountaineer Racetrack on Wednesday night. The 4-year-old colt Silver Antelope and 5-year-old gelding Present Course broke records that were both set during the 2000 season in a pair of allowance events, one at five furlongs and the other at a flat mile. Silver Antelope ($2.40), ridden by Gabriel Lagunes for trainer Anthony Farrior, sped five furlongs in 1:01.26 in a nonwinners-of-three-lifetime allowance. He won by four lengths and earned an 83 Beyer Speed Figure, a 23-point improvement over his previous start. The previous record of 1:02.24 was set by The Hunter on Dec. 29, 2000. One race later, Present Course ($2.40) romped by 13 ¾ lengths while running a mile in 1:33.44. Ridden by Andrew Ramgeet for trainer Larry Reed, Present Course was awarded an 85 Beyer for his victory in the first-level optional $15,000 claimer, 16 points better than his most recent race. Flint the Mint set the previous record for a mile of 1:33.86 on July 4, 2000. The temperature for the start of Mountaineer's program on Wednesday night was 31 dgrees.