South Africa&aposs Richard Sterne cruised to a seven-shot victory at the European Tour&aposs Joburg Open on Sunday. The in-form 31-year-old, who finished second behind Scotland&aposs Stephen Gallacher at the Dubai Desert Classic last week, fired a brilliant final round of 64 at the Royal Johannesburg and Kensington Golf Club to finish at 27-under overall, some seven shots better than his nearest rival. World number 18 Charl Schwartzel finished strongly with a 66 to claim outright second at 20 under, but he never got close enough to put any pressure on Sterne. Rising South African star George Coetzee shared third place with Portugal Ricardo Santos and Chile&aposs Felipe Aguilar another stroke back at 19 under, while South African trio Trevor Fisher Jnr, Thomas Aiken and Keith Horne were a further shot adrift at 18 under. Sterne started the final day tied for the lead with Fisher Jnr, but his compatriot eagled the par-five first to take sole possession at the top of the leaderboard. Sterne levelled it up with a birdie at two and then picked up shots at six, seven and eight to take control of the tournament as Fisher Jnr fell out of contention with three bogeys in five holes. The back nine was a mere formality for Sterne as he continued to pepper the flag and closed it out with birdies on his final two holes to clinch his sixth European Tour title and first since December 2008.