Belgium's Eli Iserbyt claimed his third victory of the 2021-2022 UCI Cyclo-cross World Cup in Osterijse ©Getty Images

Belgium's Eli Iserbyt extended his lead in the International Cycling Union (UCI) Cyclo-cross World Cup with a win on home soil in Overijse while Hungary's Kata Blanka Vas mastered the boggy conditions to take her first World Cup victory.

Iserbyt crossed the line in 1 hour 28sec and was followed by compatriots Michael Vanthourenhout and Toon Aerts in second and third, respectively, to complete a podium sweep for the home nation.

It was the 24-year-old's third victory of the series after triumphs in Waterloo and Iowa City in the United States.

Iserbyt attacked on the final lap from the leading trio after Vanthourenhout allowed him to open a gap.

Last week's winner, Aerts, fought valiantly to keep pace with the Pauwels Sauzen-Bingoal duo but could not hold on to them on the last lap.

Vanthourenhout clocked in nine seconds after his teammate while Aerts was 26 seconds behind.

The win sees Iserbyt increase his overall series lead to 45 points after five rounds of the 16-race competition.

"It was a perfect day," said Iserbyt, Cycling News reported.

"I knew as the [series] leader I just rode a tempo and the other guys didn’t want to ride in the finish straight.

"That’s what you have to do as the leader.

"I’m very happy to take the win and extend my lead today."

Hungary's Kata Blanka Vas secured her first UCI Cyclo-cross World Cup win ©Getty Images
Hungary's Kata Blanka Vas secured her first UCI Cyclo-cross World Cup win ©Getty Images

In the women's race, Vas navigated the steep climbs and technical descents to secure her first World Cup win.

The SD Worx rider broke away from Puck Pieterse with two laps remaining.

The 20-year-old Vas powered across the line after 48min 07sec, while Dutch duo Pieterse and Lucinda Brand followed suit 15 and 33 seconds later, respectively.

World champion Brand recovered from a first-lap tangle of bikes to beat countrywoman Denise Betsema in asprint finish for third.

"I didn’t expect to win the race," said Vas, as reported by Cycling News.

"I felt so good and I just tried to be on the front.

"My legs were very good on the first lap.

"I could concentrate for the whole race and everything went well.

"I’m so happy for my first (World Cup) win, it means a lot."

The race leaves Brand and Betsema level on 147 points in the individual standings while Pieterse sits third with 112 points.

Vas climbed to fourth on 105 points following her victory.

The next leg in the series is due to take place in Tabor in the Czech Republic on November 14.