Per Multichannel News, Speed Channel said president Hunter Nickell is exiting the driver's seat at the motor-sports programmer, having grown to its current 84-million-subscriber reach under his reign since 2005.
He will finish several projects at Speed over the next few months and continue to explore opportunities within the Fox Sports Media Group, the channel said.
An interim replacement will be named shortly, the network said.
Speed noted that under Nickell, the programmer increased its relationship with NASCAR and "added several high-profile events to its programming lineup, including the NASCAR Sprint All-Star Race, the NASCAR Hall of Fame Induction ceremonies and all three of the NASCAR post-season awards banquets. Nickell also generated increased Speed programming and marketing presence at every NASCAR Sprint Cup Series race on the circuit, giving Speed unmistakable leadership in on-site network visibility."