Origin of head-to-head
Examples from the Web for head-to-head
In a head-to-head race against the incumbent, Republican Paul LePage, polls suggest that Michaud would win easily.
An Insider Advantage poll released Wednesday night showed him pulling ahead of Deal in a head-to-head match-up.
But Nadal has won three straight against the 32-year-old Federer to up his advantage to 21-10 in their head-to-head record.U.S. Open’s Delicious Week One: Serena and Sloane, Rafa and Roger, and More|Nicholas McCarvel|September 1, 2013|DAILY BEAST
Say you commission a head-to-head trial of your drug against an older generic.