The first round vote is April 22, the run-off May 6, and Hollande still leads incumbent Nicolas Sarkozy in head-to-head polls.
Surfers are arranged in head-to-head matchups in a bracket system, and advance with each heat win.
The second head-to-head came the following spring of 2008, just before the late-stage primaries in Indiana and North Carolina.
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.
The latest polls show Republican Mitt Romney edging ahead of President Obama in a head-to-head matchup in 2012.
In a head-to-head race against the incumbent, Republican Paul LePage, polls suggest that Michaud would win easily.
That's the first time Obama has hit 50 in a Gallup head-to-head since April.
And Hollande is crushing Sarkozy in head-to-head polls, 57 to 43.
That same poll shows Romney narrowly beating Obama in a head-to-head matchup, while Gingrich would lose 37 percent to 53 percent.
Say you commission a head-to-head trial of your drug against an older generic.