Brent Sass is the first Kuskokwim 300 musher to reach the Tuluksak checkpoint in the 2018 Kuskokwim 300. He arrived at 11:16 p.m. on Friday and left immediately. Nenana racer Jessie Holmes pulled in four minutes later. Nine-time champion Jeff King arrived third into Tuluksak, followed by defending champion Pete Kaiser. Kaiser was fourth in, but left the checkpoint ahead of King, who spent about 10 minutes in the checkpoint and dropped a dog.