Read the following passage and answer if the question is true or false.
Passage: To date only two competitors, rock-climbers Isaac Caldiero and Geoff Britten, have finished the course and achieved ``Total Victory''. Caldiero is the only competitor to win the cash prize. The series premiered on December 12, 2009 on the now-defunct cable channel G4 and now airs on NBC with encore episodes airing on USA Network and NBCSN.

Question: has there ever been a american ninja warrior?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
True. The passage mentions two American competitors, Isaac Caldiero and Geoff Britten, who have achieved "Total Victory" in the American