Spain's Ruben Xaus won the second World Superbikes race at Misano as Troy Bayliss extended his championship lead with two third-place finishes.

Ducati rider Xaus beat team-mate Max Biaggi into second place by 1.035 seconds, with Bayliss a distant 4.158 seconds behind after a late error.

Max Neukirchner, who won the first race, overtakes Honda's Carlos Checa into second in the championship.

The German is now 49 points behind leader Bayliss who has 259 points.

Rider Standings: (after 8 of 18 rounds)
1. T Bayliss (Aus) Ducati, 259 points
2. M Neukirchner (Ger) Suzuki 210
3. C Checa (Esp) Honda 207
4 N. Haga (Jpn) Yamaha 191
5 T. Corser (Aus) Yamaha 185
6 F. Nieto (Esp) Suzuki 151
7 R. Xaus (Esp) Ducati 148
8 M. Biaggi (Ita) Ducati 117
9 M. Fabrizio (Ita) Ducati 111
10 R Kiyonari (Jpn) Honda 94