Australia's big five on day 14 in Rio

FIVE KEY EVENTS FOR AUSTRALIA ON DAY 14 IN RIO:

MEN'S 50km WALK (0800 local time, 2100 AEST Friday)

If defending champion Jared Tallent gets any medal he'll have four in total, making him the most successful Australian male athletics competitor at an Olympics.

MEN'S BASKETBALL SEMI-FINAL AUSTRALIA V SERBIA (1900 local time, 0800 AEST Saturday)

The Boomers have already beaten the Serbs by 15 points in a pool match in Rio, but Australia have not won an Olympic men's semi-final from three attempts.

BMX

WOMEN'S SEMI-FINALS (1330 local time, 0230 AEST Saturday) FINAL (1500, 0400 AEST Saturday)

MEN'S SEMI-FINAL (1338 local time, 0238 AEST Saturday) FINAL (1510, 0410 AEST Saturday)

Caroline Buchanan and Sam Willoughby are golden prospects but don't discount compatriot Anthony Dean who has two wins and second placing heading into the semis.

EQUESTRIAN SHOWJUMPING FINAL (1000 local time, 2300 AEST)

Edwina Tops-Alexander is chasing Australia's first medal in the discipline at an Olympic Games.

ATHLETICS, WOMEN'S POLE VAULT FINAL (2030 local time, 0930 AEST Saturday)

If Alana Boyd can repeat her Australian pole vault record of 4.77m set in January, she could an Olympic gold medallist - clearing that height would have won her gold in London four years ago.