The Canadian and Czech teams celebrate their respective triumphs in the Junior Davis Cup and Junior Fed Cup ©ITF/Martin Sidorjak

Top seeds Canada and Czech Republic claimed the Junior Davis Cup and Junior Fed Cup titles respectively at the Caja Magica in Spain's capital Madrid, despite being pushed all the way by their final opponents.

The number one ranked Canadian boys' team, made up of Denis Shapovalov, Felix Auger-Aliassime and Benjamin Sigouin, landed a first Junior Davis Cup trophy for their country, outdoing number five seeds Germany, 2-1.

Meanwhile, Czech Republic’s Marketa Vondrousova, Monika Kilnarova and Anna Slovakova also registered a 2-1 win against defending girls' champions and number two seeds the United States to ensure a fourth Junior Fed Cup crown for the European nation.

The boys’ final started with a victory for Shapovalov, defeating Marvin Moeller 6-1, 6-4, but Germany’s Nicola Kuhn, who only lost one match all week and was named the Davis Cup's most valuable player, levelled things up by overcoming Auger-Aliassime, 6-3, 6-3.

The outcome would ultimately come down to the doubles as Shapovalov and Auger-Aliassime capitalised on a stomach muscle pull for Kuhn, partnered by Moeller, to take the decisive third set and seal a 6-3, 3-6, 6-2 success.

Victory was particularly sweet for Canada, having finished second to Japan in 2010 when making their first and only previous final appearance.

"For sure, it’s exciting to be the first Canadians to ever win the Junior Davis Cup," Shapovalov said.

"We had the team to do it.

"All three of our players are great tennis players."

Denis Shapovalov formed part of Canada's Junior Davis Cup-winning trio
Denis Shapovalov formed part of Canada's Junior Davis Cup-winning trio ©ITF

The Fed Cup final also featured a split in the singles matches with Kayla Day putting the US ahead by beating Kilnarova 6-3, 6-1 before Czech number one Vondrousova overcame the US’s top player Claire Liu, 7-5, 6-4.

The doubles proved to be a one-sided affair however as Slovakova and Vondrousova raced to a 6-0, 5-0 lead before the US were even able to get on the scoreboard.

A second game went the way of the US, who were looking to retain the title that predecessors CiCi Bellis, Alicia Black and Sofia Kenin picked up last year, but it was too little too late as the Czech’s wrapped up a 6-0, 6-2 win moments later.

The Czechs' triumph is their first since 2001 when they beat Poland.

"I think it’s amazing for me because I won singles and doubles again, today," said the 16-year-old Vondrousova, who was named the Fed Cup’s most valuable player.

Taking the bronze medals were the fourth-seeded teams of Russia for the boys, and Canada for the girls.

The Russian boys captured a 3-0 win over eighth-seeded Japan to secure third place, while the Canadian girls posted a 3-0 victory against third-seeded Russia to join Czech Republic and the US on the podium.

The Junior Davis Cup and Junior Fed Cup, now in their 31st year, are the International Tennis Federation’s official team competitions for players aged 16-and-under.

A total of 168 teams from 94 countries took part in regional qualifying this year, with 15 boys and 15 girls’ teams joining hosts Spain in the finals.

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