More than 29,000 runners have signed up for the annual race in the Hawaiian capital.
The man popped the question using four maps from a run.
Five events are on the chopping block as the IOC looks to streamline its event lineup and possibly add more sports.
Despite losing his legs at mid-shin as a result of injuries sustained in Afghanistan, Steve Martin is a seasoned runner.
Jessica MacDonald began running over the summer when she was rehabbing from shoulder surgery.
Josh Manning, 17, wants to break 3 hours in Sunday's 26.2-mile journey.
Here are the top-25 women's finishers at Saturday's race.
Here's a look at the top-25 men's finishers from Saturday's race.
The 2014 Boston Marathon champion was beat out by baseball's Madison Bumgarner.
Ed Ettinghausen is aiming to run three more to close out the year with 40.