The 153rd Open Championship continues Saturday at Royal Portrush. USA Network, NBC and Peacock will have wall-to-wall live coverage from Portrush, Northern Ireland, including these featured groups (all times EDT):

The second round of the British Open will begin at 1:35 a.m. (EDT) on July 18, when 2009 champion Stewart Cink, Matteo Manassero and Marc Leishman tee off. Other key players and their starting times: Christaan Bezuidenhout 3:36 a.

While the cut score can change significantly year-upon-year, the rule which decides how many players make it through remains