Race 1 

Marco Melandri has won Race 1 at Portimao, following a close battle in the closing stages with Sylvain Guintoli that ended up with just a 0.007 gap between the two at the finish line - 4th smallest margin for victory ever in a WSBK race. A perfect exit out of the last corner was just not enough for the Championship leader to snatch victory over the Italian. 
Aprilia's race outcome was well saved by the Frenchman after team mate's Eugene Laverty unfortunate retire on lap 12, consequence of a technical problem he sustained while he was on the lead. 

Tom Sykes (Kawasaki Racing Team) - the only first row starter to finish the race - completed the podium with a solid 3rd place, after losing some ground from the top in the final part. Best result so far in the season for Leon Camier and the FIXI Crescent Suzuki Team, as the tall British rider finished 4th ahead of a sore Chaz Davies (BMW Motorrad GoldBet) and Michel Fabrizio (Red Devils Roma Aprilia). Camier's team mate Jules Cluzel got the better of Carlos Checa (Team Ducati Alstare) on the last lap, finishing 8th. 
Pata Honda Team's unfortunate first race of the day saw Jonathan Rea retiring due to a technical problem and Leon Haslam pulling in after losing the feeling in both arms, as the 30 year old from Derby was trying to compensate the lack of strength in his injured left leg. 

Race 2

Laverty on the top step in Race 2 

Eugene Laverty (Aprilia Racing Team) was the winner of Race 2 at Portimao. The Irishman, back on the podium after one round of absence, managed to score his 4th victory of the season. Of the seven wins achieved so far in his WSBK career, six of them came in the second race. The only rider able to keep up with the winner, at least in the first half of the race, was Jonathan Rea (Pata Honda World Superbike). The Ulsterman was edged out of 2nd place in the closing stages by Sylvain Guintoli, who completed the third one-two for the works Aprilia team in 2013 after the total domination of the Season Opener in Phillip Island. Thanks to his podium finish number 9 in the season, the Frenchman is still the Championship leader with 209 points ahead of Tom Sykes. 

The Kawasaki Racing Team rider, who had a very early crash on the sighting lap, at Turn 2, managed after several attempts to make his way back to the pits, from where he started the race. Towards the end of Lap 1 the Englishman had to pull in again but, after returning to the track for the third time, with no chances left for a top-15 finish, Sykes showed an incredible pace and even set the new lap record in 1'42.475. The Kawasaki Racing Team had something to cheer anyway, as Loris Baz finished fourth ahead of Chaz Davies (BMW Motorrad GoldBet), a tenacious Carlos Checa (Team Ducati Alstare) and Jules Cluzel (FIXI Crescent Suzuki). An excessive rear tyre wear forced Marco Melandri (BMW Motorrad GoldBet) to ride defensively to a 12th place at the flag. The issue that hampered the performance of the Italian rider is currently under investigation by Pirelli. A technical problem is the reason behind the withdrawal from Race 2 by Leon Camier (FIXI Crescent Suzuki) on the twelfth lap.

Race 2
Portimão, 07-08-09 June 2013 Laps 22 = 101,024 Km - Time Of Race 38'02.051 - Avg. 159,368 km/h 
Pos R1 R2 Tot Pos Qualifying Grid No. Rider Nat Team Bike LL Gap Fastest Lap Speed Speed Ranking Race Time 
1 2 58 E. LAVERTY IRL Aprilia Racing Team Aprilia RSV4 Factory 22 1'42.810 305,9 1'41.361 305,9 25 174 3 
2 5 50 S. GUINTOLI FRA Aprilia Racing Team Aprilia RSV4 Factory 22 4.107 1'43.153 301,7 1'42.209 308,6 20 20 213 1 
3 3 65 J. REA GBR Pata Honda World Superbike Honda CBR1000RR 22 5.853 1'42.820 299,2 1'41.787 302,5 16 105 7 
4 6 76 L. BAZ FRA Kawasaki Racing Team Kawasaki ZX-10R 22 15.306 1'43.435 305,1 1'42.328 308,6 11 13 119 6 
5 12 19 C. DAVIES GBR BMW Motorrad GoldBet SBK BMW S1000 RR 22 17.552 1'43.645 305,9 1'43.463 309,5 10 11 133 5 
6 7 7 C. CHECA ESP Team Ducati Alstare Ducati 1199 Panigale R 22 18.366 1'43.809 293,5 1'42.405 294,3 7 10 50 13 
7 8 16 J. CLUZEL FRA Fixi Crescent Suzuki Suzuki GSX-R1000 22 29.392 1'44.187 303,4 1'42.645 303,4 
8 9 72 10 8 10 86 A. BADOVINI ITA Team Ducati Alstare Ducati 1199 Panigale R 22 38.359 1'44.196 292,7 1'43.057 297,5 8 45 14 
9 11 34 D. GIUGLIANO ITA Althea Racing Aprilia RSV4 Factory 22 39.321 1'43.918 298,3 1'43.314 303,4 7 79 9 
10 9 84 M.FABRIZIO ITA Red Devils Roma Aprilia RSV4 Factory 22 44.603 1'44.127 289,5 1'43.032 287,2 9 6 101 8