Martinsville I Event Info: Date: Sunday, March 30 Time: 3 p.m. ET Series: NASCAR Cup Series (NCS) Location: Martinsville, Virginia Format: 400 Laps, 210.4 miles, Stages: 80-180-400 TV: FS1 Radio: MRN, SiriusXM NASCAR Radio (Channel 90) Weekend Schedule: Saturday: 2 p.m. ET, Cup Practice (Prime, MRN, SiriusXM ...