Another week of varied motorsports for the racing fan, including some in this region. One of the biggest events this weekend will happen at Livfast Exit 28, located east of Sparks. The track is hosting what probably will be the only night motocross this summer. There will be practice sessions on Friday from 4 p.m. until 10 p.m. Then practice resumes at 3 p.m. Saturday with the first motos slated to start right after that, as they’ll race into the night. The track is located off Exit 28 on I-80 east of Sparks. Take the exit then go over the