On Thursday, the Olympic 10km Marathon Swimming event for women began on time after tests of water quality in Seine River met standards.

There will be more than 30 medals on offer in the athletics, sailing, boxing, taekwondo and wrestling finals.

What you should know about Thursday's Olympics:

SMARATHON SWIMMING

Brazil's defending champ Ana Marcela Cunha, and her swimming competitors in the grueling event, dived from a platoon near the Alexandre III Bridge at 7:30 a.m. (0530 GMT), and swam furiously towards the Pont de l'Alma.

This race involves a 1,67km loop that is completed six times on either side of the river running through Paris.

SPRINT DOUBLE FOR LYLES

Noah Lyles is the new world's fast man. He will be back on the track to try and complete his sprint double, adding the 200m title to last week's 100m win.

Lyles would be the first American since Carl Lewis to have achieved the Sprint Double.

CARRINGTON GOES IN SEARCH OF SEVENTH MEAL

First medals are on the line in the sprint canoe and Lisa Carrington will be looking to increase her five-gold and three-bronze haul when she competes in women's four 500m kayak.

Hall snatches gold in the 400m

Quincy Hall, in athletics produced an amazing late surge that allowed him to overtake Briton Matthew Hudson Smith and win the first Olympic 400 metre gold medal for the United States of America since 2008. This was another thrilling and dramatic race held on Wednesday.

TAIWANESE LIN SLIPS INTO BOXING FINAL FOR WOMEN

Lin Yu-ting of Taiwan, who is one of the two boxers in the middle of a dispute over gender at the Paris Olympics has moved closer to winning the Olympic gold medal after she defeated Turkey's Esra Yaldiz on Wednesday by unanimous vote.

In New York, Russia and Algeria traded diplomatic blows over this issue at a conference of an organization focusing on peace, security and women.

HOLDER PURSUIT

Australia's men won their first Olympic team pursuit gold since 2004, after a dramatic final against Britain on Wednesday at the National Velodrome. The United States won gold in the women's race for the very first time, defeating New Zealand.

(source: Reuters)