The Czech Republic won their sixth Fed Cup title in eight years after beating the United States 3-0 in Prague, with two critical wins from world doubles number one Katerina Siniakova.
She led the home side to victory with two wins in the singles, against Alison Riske on Friday, and in the deciding third match against Fed Cup debutant Sofia Kenin 7-5 5-7 7-5.
In a match that lasted more than three and a half hours, Kenin battled hard after being broken at the first opportunity.
The American teenager continued to fight throughout the match, particularly in the final set when she won four games in a row to give herself the chance to win the match on her serve, but Siniakova saved two match points.
Siniakova won on her second match point to delight the home crowd.