United States have all but booked their spot in the next round of the Olympics with a 3-0 victory over Colombia.
It was the United States who started the better and they might have taken the lead after just six minutes, but Lauren Cheney fired wide from close range.
The US continued to dominate in the opening stages, and Abby Wambach also fired wide from inside the box in a lively opening from the favourites.
Chances continued to fall their way as the half-hour mark approached, and Alex Morgan and Rapinoe were both guilty of missing openings.
Colombia's clearest chance of the half fell to Carmen Rodallega, but she fired a stinging effort over the crossbar.
The US did take the lead, however, after 33 minutes when Rapinoe finished a sweeping move with ease.
It remained that way until the break, but it was so nearly two on the stroke of the interval when Rapinoe met a low cross - but the danger was cleared.
Colombia continued to ride their luck early in the second period, as their goal came under constant pressure.
Rapinoe continued to threaten for the United States with a double effort on the hour mark, while Wambach also came close.
Colombia still had just the one attempt on goal as the match approached the 70-minute mark, and they were made to pay when Wambach added USA's second. Meanwhile, it was three quickly when Carli Lloyd converted after 77 minutes.
USA should have added to the scoreline in the latter stages, but it remained 3-0 and now they will await the score from France vs. North Korea this evening.
