Dic: go the distance, last the distance

■ go the distance:

1. [boxing] to complete a bout without being knocked out
2. to be able to complete an assigned task or responsibility

■ go the distance: to manage to continue until the end of a competition

■ go the distance: to continue doing something until it is successfully completed.

• The pitcher went the distance and has now won eight games in a row. 
• The project would be difficult, but I agreed I would go the distance.

.... Collins, CALD, Cambridge Dictionary of American Idioms 

■ distance:
 5. (a) aesthetic distance
 5. (b) capacity to observe dispassionately
— go the distance (also last the distance): to complete a course of action

..... http://www.merriam-webster.com/dictionary/distance