NEW YORK (Reuters) - Mardy Fish won his second five-set match in three days to lead the United States to a 3-1 win over Colombia in the Davis Cup Sunday in Bogota.

The triumph keeps the U.S. in the Davis Cup World Group, the highest level in the international team competition.

Fish followed up his opening day win over Alejandro Fallo with a 3-6 6-3 7-5 4-6 8-6 victory against Santiago Giraldo to give the Americans an insurmountable lead in their playoff tie.

With the overall winner decided and rain starting to fall, the final match was canceled, leaving the U.S. as 3-1 winners and still in the elite World Group for next season.

"Mardy has great variety in his game," U.S. captain Patrick McEnroe told the official Davis Cup website (www.daviscup.com). "He can adapt to the situation and go to his toolbox as needed.

"All during the match, I told him to think about the sacrifice and hard work that he has put in over the ten months."

(Reporting by Julian Linden; Editing by Steve Ginsburg)