Gemma Dudley was again the toast of the New Zealand team with her fourth medal in as many days at the junior cycling world championships in South Africa today.

The Levin teenager won a bronze medal in the 20km points race to add to the silver medals she won in the scratch race and team pursuit and the bronze in the individual pursuit at the Bellville Velodrome in Cape Town.

It takes New Zealand's tally to six medals.

In other finals today, Ashburton's Jason Christie and Cromwell's Tom Scully finished seventh in the madison while Sam Webster of Auckland made it through to the round of eight in the men's sprint.

Dudley started conservatively in the 20km points race which was dominated by Australian winner Megan Dunn.

The young New Zealander was in a share of eighth place with just 20 laps and three sprints remaining.

She showed her strength to finish second in two of the last three sprints to move into contention and secure third behind Dunn and Italy's Valentina Scandolara.

New Zealand fourth-day results: Women's 20km scratch race final: Megan Dunn (Australia) 32 pts 1, Valentina Scandolara (Italy) 16 2, GEMMA DUDLEY (NZ) 10 3 Men's 30km madison final: Australia 19 1, Belgium 15 2, Switzerland 11 3. NEW ZEALAND (JASON CHRISTIE, TOM SCULLY) 2 7 Men's sprint: Qualifying - SAM WEBSTER 11.078sec 6, ETHAN MITCHELL 11.328 13, CHAD ADAIR 11.584 24 First round: WEBSTER bt Florian Karge (Germany) 11.722, MITCHELL lost to Philipp Thiele (Germany) 11.722, ADAIR lost to Quentin LaFarge (France) 11.723 Second round: WEBSTER lost to Marc Schroder (Switzerland) 11.877 NZPA WGT dg