SA's Udeme Okon bags 400m gold at U20 World Champs, Bayanda Walaza eases into 200m final

South Africa's Udeme Okon won the men's 400m final at the U20 World Championships in Lima, Peru on Friday morning (SA time).

Okon won gold in a time of 45.69 seconds.

Okon, 18, stunned Americans Jayden Davis and Sidi Njie with an impressive surge in the home straight. Davis (46.08) won silver and Njie (46.29) settled for bronze.

It's another ?? for Team South Africa ????Udeme Okon deserves gold with a running style as smooth as that ??????#WorldAthleticsU20 pic.twitter.com/gnBJr9aERv

It's Okon's moment ??

????'s Udeme Okon claims the 400m gold with an incredible comeback in the home straight ??‍??

45.69 ??#WorldAthleticsU20 pic.twitter.com/UUmolT5zww

Meanwhile South Africa's Olympic hero, Bayanda Walaza, continued his impressive run when he eased into the 200m final.

Walaza won his semi-final heat in a time of 21.00 seconds.

READ | From world's unofficial fastest teen to the real deal: Walaza's wildest dreams keep coming true

The men's 200m final will take place at 01:47 (SA time) on Saturday morning.

?????????????? ???????????? ??South Africa's starboy is into another final at the World Athletics U20 Championships in Peru ???????? Stream #WorldAthleticsU20 on DStv: https://t.co/rM90YyQxaw pic.twitter.com/if55KiFUuy

Earlier in the week, 18-year-old Walaza won the 100m final in a time of 10.19 seconds.

His countryman, 19-year-old Bradley Nkoana, took bronze in 10.26 and Thailand's Puripol Boonson finished second in 10.22.

Both Walaza and Nkoana were part of Team SA's 4x100m relay side that won silver at the Olympic Games in Paris earlier this month. 

Elsewhere on Thursday, South Africa's Chane Vermeulen missed out on a spot in the women's 200m final.

Vermeulen finished third in her semi-final heat but her time of 23.78 was not enough to