The Chase for the Sprint Cup comes down to two drivers as the season-ending Ford 400 goes off today at Homestead-Miami Speedway in Florida. Three-time series champ Jimmie Johnson holds a 108-point lead over Mark Martin, meaning that if Martin wins here, Johnson need only finish 25th to claim his record-setting fourth title in a row, thus surpassing his and Cale Yarborough's (1976-78) previous mark of three straight.