Updated: August 21, 2016

Javelin thrower Sunette Viljoen produced the performance of her career on Thursday night to secure the silver medal in her specialist event at the Rio Olympics.

The African record holder delivered a 64.92m heave in the first round of the final, which was good enough to earn second place.

Sara Kolak of Poland earned gold with a 66.18m effort and world record holder Barbora Spotakova of the Czech Republic took bronze with a best attempt of 64.80m.

“I dug deep after London and kept fighting, so to win silver is great.,” said Viljoen, who ended fourth at the multi-sport Games in the English capital four years ago to narrowly miss out on a medal.

Earlier in the evening session on day six of the athletics competition in Rio, Caster Semenya had no trouble as she cruised through her semifinal with a convincing win in 1:58.15, earning her place in Saturday night’s final (local time).

“The gold medal is still on my mind,” Semenya said.

“I’m happy with that performance and looking forward to the final.”