James Toseland says he was surprised to see riders experiencing varied levels of grip over the course of the World Superbike race day at Kyalami as he settled for two middling top ten finishes.
Toseland had qualified alongside his Yamaha team-mate Cal Crutchlow on the front row of the grid, but while he got away well in race one, he steadily faded as his tyres began to wane.
Indeed, while he did his utmost to fight a rear-guard action and keep his rivals at bay, Toseland could not prevent Leon Haslam, Max Biaggi, Jonathan Rea and Leon Camier from making their way through as he settled for seventh at the chequered flag.
Despite getting a worse start, Toseland actually fared better in race two as he worked his way up from an early position of ninth to finish sixth.
Nonetheless, while the former champion was satisfied with his performance given the neck injury he has been carrying this weekend, he was still bemused by the lack of grip
"The team are a bit bewildered after today, we lost grip on the tyres so quickly in the two races it was a challenge to keep up race pace,” he said. “Considering I had my big crash only a week ago, getting a sixth and seventh finish is not bad for the championship for me.
“The differences that people have had today in grip level is incredible, some riders seemed to lose performance dramatically between the two races. I am a little frustrated but I certainly haven't had as bad a day as some riders.
“Over the weekend my neck got better and better, it was a bit sore still on Friday but it was fine today. A big thank you to the team who did a fantastic job this weekend, we're looking forward to a rest now before Salt Lake City in a couple of weeks."
Toseland holds down fifth position in the overall standings, 16 points off third position.