Yamaha Sterilgarda will start 1-2 on the grid for the sixth round of the World Superbike Championship at Kyalami after Cal Crutchlow and James Toseland hit form in Superpole.

A third pole position for the reigning World Supersport Champion, Crutchlow denied Toseland his first WSBK top spot since the final round of the 2007 season by going a mere 0.017secs faster than his team-mate.

Toseland had set the ball rolling with his lap of 1min 37.243secs, the fastest lap of the weekend so far and quicker than Yamaha predecessor Ben Spies' lap record around the South African circuit last year.

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However, while it was enough to repel six of his rivals, Crutchlow would slip in beneath him to add another Superpole trophy to his Portimao and Valencia silverware.

Despite missing out, Toseland will be delighted with what is comfortably his best qualifying performance since returning to the series, not least because he is battling a sore neck as a consequence of his first lap accident at Monza less than a week ago.

Going slightly against the form book following Ducati's domination of the weekend so far, the Italian bikes remain in contention in third and fourth, although it was Althea's Carlos Checa once again embarrassing his factory counterparts by edging out Q1 pace setter Michel Fabrizio.

As for the key title contenders, series leader Leon Haslam was marginally faster than Max Biaggi in fifth and seventh respectively, the pair not quite able to replicate the form that had them higher on the timesheets during the knockout phases.

They will be split by the PATA B&G Ducati to Jakub Smrz, while an impressive SP2 effort from Leon Camier got him into the deciding session, the Aprilia rider going on to take eighth on the grid.

Prior to the shootout, a tight SP2 session claimed a handful of notable casualties, in particular Jonathan Rea, who missed out on the top two rows for the first time this season to qualify down in 11th on the Ten Kate Honda, while BMW's Troy Corser was also a surprise absentee in 13th having shown decent top ten form all weekend.

Just ahead, Luca Scassa missed out on a first shootout berth by a mere 0.024secs to nonetheless claim a career best ninth on the grid, ahead of the swiftly improving Sylvain Guintoli on the second Suzuki.

Monza star Tom Sykes starts 12th on the Kawasaki, while local favourite Sheridan Morais managed to take a solid 14th on the EmTek Racing Aprilia.

Despite their team-mates securing spots on the front row, Noriyuki Haga and Shane Byrne endured a troublesome afternoon, Haga struggling once again down in 16th, while Byrne was dumped out at the end of SP1.

He would be joined on the sidelines at the first time of asking by Max Neukirchner and Chris Vermeulen.