SINGAPORE - Top-rated galloper Stepitup's bid for a historic Triple Crown remains on track after the six-year-old gelding drew a favourable inside barrier at Wednesday's Longines Singapore Gold Cup post position draw.

The Australian-bred bay horse will jump from gate one at Sunday's $1.35 million Group 1 race over 2,200m at the Singapore Turf Club. Last year's champion Quechua, trained by South African Patrick Shaw, will start out wide at gate 18 while 2013 winner Tropaios will be positioned at gate 3.

Stepitup is trained by nine-time champion trainer Laurie Laxon. Under the Kiwi's charge, Stepitup has won the first two legs of the Triple Crown Series, capturing last month's Kranji Mile (1,600m) and Raffles Cup (1,800m).

No horse has managed to sweep all three events in a calendar year.

Last year saw War Affair come close after winning the first two legs but the 2014 Horse of the Year came up short in the Gold Cup when he was upstaged by stayer Quechua.