Australian show jumper Edwina Tops-Alexander is equal top after two rounds of qualifying at the London Olympics.
Tops-Alexander, riding Itot Du Chateau, produced another perfect ride on Sunday at Greenwich Park to be among six show jumpers ranked equal first.
Fellow Australians James Paterson-Robinson and Julie Hargreaves are equal 19th and the nation is ranked fifth in the team event staged concurrently with the individual competition.
For the second day running, Tops-Alexander, the world's top-ranked show jumper, didn't incur a penalty point in her round before a sell-out crowd of 25,000.
'I'm really happy with how we went, my horse jumped great, probably better than I rode,' she said.
'The horse is in good shape ... it's definitely a great feeling when he has been jumping so good.'
Paterson-Robinson was penalised four points on Sunday, his same result as in the opening round.
The Australian was slightly unsettled by a delayed entrance to the arena due to loud noise from the crowd, supporting British rider Nick Skelton before him.
'There was a lot of noise when I came into the arena,' Paterson-Robinson said.
'The officials told me to hang back because Nick was ahead of me and they expected a big roar from the crowd.'
Australian Matt Williams was eliminated from the individual competition when his horse Watch Me refused two jumps on Saturday.
But Williams still competes with his performance contributing to the team results, with Australia's top three performances combined to form the overall standing.
'It was an improvement on yesterday but I didn't ride him with enough trust,' Williams said.
'My elimination from yesterday was playing on my mind.'
Saudi Arabia lead the teams event with Great Britain among four nations tied for second.