On Wednesday 23 gold medals will be awarded at the Olympics, with the majority of these going to athletes, but also sailing, artistic swim, boxing and skateboarding, as well as speed climbing and other sports.

What you should know about Wednesday's Olympic Games:

HUDLES

Jasmine Camacho Quinn of Puerto Rico opened the Olympic 100 metres with her own race

hurdles title defence

Tobi Amusan, the Nigerian world record holder and Masai Russel from America are both trying to topple her. Cyrena Mayela of France is one of France's best hopes for a gold medal in individual track.

Race Walk Relay

Alvaro Martinez and Maria Perez, two-time world champions from Spain, took part in the event.

The gold medal

The mixed marathon race-walk relay won its Olympic debut at the Paris Games by almost a minute on Wednesday.

COCAINE?

The Australian Men's Hockey Team

The Australian Olympic Committee announced on Wednesday that a man was arrested and being held under custody in Paris, following reports from French media saying he'd been caught in possession of cocaine.

NIGHT MARATHON

On Saturday, amateur runners can complete the same Olympic Marathon course as athletes but with added excitement.

running at night

On a route well-lit, you'll pass by the iconic landmarks of the city.

SMARATHON SWIMMING

After being cancelled Tuesday because of concerns about water pollution, the familiarisation session was held as planned on Wednesday after water quality tests were met.

This is not a joke

Jacky Godoffe's idea to set a route fixed for speed climbing competitions was ridiculed by the international body of the sport in 2004.

The universal speed-climbing route, which the French pioneer climber created 20 years ago, will be a historical moment at the Paris Games. It is the venue for the very first Olympic medals in the sport.

WIGHT

The Indian Olympic Association announced that Vinesh Phogat, an Indian wrestler who was competing in the 50kg women's freestyle at the Paris Olympics last Wednesday failed to meet weight and so was removed from the competition.

Phogat was set to compete with Sarah Hildebrandt from the United States in the race for gold. She will no longer receive any medals.

SAILING

Mediterranean winds are unpredictable

On Wednesday, the finals of three Olympic sailing races will be tense. The officials will try to conclude the medal races for the women's and men's dinghy as well as mixed dinghies.

Men's and Women's Dinghy Sailors spent hours waiting for Tuesday's breeze to stabilize, but then saw the flags being raised to indicate that the medal races had been abandoned.

The Goat in the Boat

Lisa Carrington of New Zealand, the most successful Olympian in her country and the "GOAT" in the boat (Greatest Of All Time), begins her bid for the individual sprint kayak gold at Vaires-sur-Marne Nautical Stadium.

(source: Reuters)