Nikki Hamblin helps Abbey D'Agostino finish 5000m after fall. Shelby Houlihan, Abbey D'Agostino advance to Olympic 5K final. New Zealand runner stops to help fallen American in amazing show of sportsmanship. US and New Zealand runners help each other finish after falling on the track. American and New Zealand runners help each other finish race after ugly fall during women's 1500. Nikki Hamblin helps Abbey D'Agostino finish 5000m after fall.~~~~~