If the pair win again in Berlin on Sunday they will share the $1 million prize on offer for any athletes who win their event in all six Golden League meetings this season.
It was a night of mixed emotions for Jamaican sprinter Asafa Powell who failed to set a second 100 metres world record in less than a week although he still powered to victory.
Powell, who broke his own world record with a time of 9.74 seconds in Italy last Sunday, finished in 9.84 after the restart following a mistake by Briton Marlon Devonish out of the blocks.
Norway’s Jaysuma Saidy Ndure was second in 10.11 seconds with Powell’s compatriot Michael Frater third (10.12).
Isinbayeva’s victory was also tinged with disappointment after she failed in three world record attempts at 5.02 metres after clearing 4.90 easily to win the event.
Richards, complaining of flu, cruised to a season’s best 49.36 seconds to win the 400 metres in style.
The US athlete failed to make the final at the world championships in Osaka last month but outclassed Britain’s world silver medallist Nicola Sanders who finished second again.
The was joy for Ethiopia’s Meseret Defar who set a women’s two-mile world best of eight minutes 58.58 seconds to beat the world mark of nine minutes 10.47 seconds she ran in May.
Croatia’s Blanka Vlasic won the women’s high jump by clearing 2.03 metres but failed her three attempts at 2.10 in a bid to break the world record set by Bulgaria’s Stefka Kostadinova at 2.09 metres more than 20 years ago.
Women’s world 100 metres hurdles champion Michelle Perry had to settle for third as she was outclassed by Sweden’s Susanna Kallur who had finished in fifth behind the American in Osaka.
In the women’s 100 metres, Veronica Campbell completed a Jamaican sprint double in 11.11 seconds, while Belgium’s European champion Kim Gevaert delighted the sell-out home crowd with victory in the women’s 200 metres.
Bahrain’s world champion Maryam Jamal won the women’s mile in a personal best of four minutes 17.75 seconds.
Men’s 5,000 metres silver medallist Eliud Kipchoge of Kenya had to settle for second place again as Ethiopia’s Sileshi Shine won a slow-run event.
The men’s 110 hurdles was won by Dayron Robles who squeezed home just ahead of American Anwar Moore.
Results:
MEN’S:
100 metres: 1. Asafa Powell (Jamaica) 9.84 seconds; 2. Jaysuma Saidy (Norway) 10.11; 3. Michael Frater (Jamaica) 10.12; 4. Marlon Devonish (Britain) 10.16; 5. Marc Burns (Trinidad and Tobago) 10.18; 6. Francis Obikwelu (Portugal) 10.25; 7. Olusoji Fasuba (Nigeria) 10.29; 8. Darvis Patton (US) 10.30.
200 metres: 1. Wallace Spearmon (US) 19.88 seconds; 2. Xavier Carter (US) 20.04; 3. Usain Bolt (Jamaica) 20.14; 4. Rodney Martin (US) 20.39; 5. Johan Wissman (Sweden) 20.49; 6. Joshua Johnson (US) 20.54; 7. Paul Hession (Ireland) 20.79; 8. Guus Hoogmoed (Netherlands) 20.85.
800 metres: 1. David Lekuta Rudisha (Kenya) one minute 44.15 seconds; 2. Mbulaeni Mulaudzi (South Africa) 1:44.40; 3. Youssef Saad Kamel (Bahrain) 1:44.43; 4. Belal Mansoor Ali (Bahrain) 1:44.89; 5. Mohamed Al Salhi (Saudi Arabia) 1:45.30; 6. Yuriy Borzakovskiy (Russia) 1:45.46; 7. Alfred Kirwa (Kenya) 1:45.83; 8. Thomas Matthys (Belgium) 1:47.30.
1500 metres: 1. Daniel Kipchirchir Komen (Kenya) three minutes 32.67 seconds; 2. Mohamed Moustaoui (Morocco) 3:34.38; 3. Juan Carlos Higuero (Spain) 3:34.72; 4. Geoffrey Rono (Kenya) 3:35.72; 5. Andrew Baddeley (Britain) 3:35.94; 6. Rashid Ramzi (Bahrain) 3:36.20; 7. Shadrack Korir (Kenya) 3:36.45; 8. Arturo Casado (Spain) 3:36.68.
5000 metres: 1. Sileshi Sihine (Ethiopia) 12 minutes 50.16 seconds; 2. Eliud Kipchoge (Kenya) 12:50.38; 3. Moses Kipsiro (Uganda) 12:50.72; 4. Joseph Ebuya (Kenya) 12:51.00; 5. Thomas Longosiwa (Kenya) 12:51.95; 6. Yusuf Biwott (Kenya) 12:58.49; 7. Abraham Chebii (Kenya) 12:59.63; 8. Tariku Bekele (Ethiopia) 13:01.60.
10,000 metres: 1. Kenenisa Bekele (Ethiopia) 26 minutes 46.19 seconds; 2. Moses Masai (Kenya) 26:49.20; 3. Micah Kogo (Kenya) 26:58.42; 4. Bernard Kiprop Kipyego (Kenya) 26:59.61; 5. Robert Sigei (Kenya) 27:16.48; 6. Dieudonne Disi (Rwanda) 27:22.28; 7. John Cheruiyot Korir (Kenya) 27:26.31; 8. Gebre-egziabher Gebremariam (Ethiopia) 27:39.61.
110-metre hurdles: 1. Dayron Robles (Cuba) 13.21 seconds; 2. Anwar Moore (US) 13.25; 3. Allen Johnson (US) 13.27; 4. Ryan Wilson (US) 13.32; 5. Ladji Doucoure (France) 13.42; 6. David Payne (US) 13.42; 7. Andy Turner (Britain) 13.55; 8. Jackson Quinonez (Spain) 13.59.
3000-metre steeplechase: 1. Paul Kipsiele Koech (Kenya) seven minutes 58.80 seconds; 2. Brimin Kipruto (Kenya) 8:02.89; 3. Willy Komen (Kenya) 8:11.18; 4. Bouabdellah Tahri (France) 8:11.77; 5. Steve Slattery (US) 8:15.69; 6. James Koskei (Kenya) 8:19.14; 7. Julius Nyamu (Kenya) 8:23.59; 8. Guenther Weidlinger (Austria) 8:25.87.
Triple jump: 1. Walter Davis (US) 17.27 metres; 2. Aarik Wilson (US) 17.20; 3. Nelson Evora (Portugal) 17.14; 4. Jadel Gregorio (Brazil) 16.82; 5. Aleksandr Petrenko (Russia) 16.59; 6. Dmitrij Valukevic (Slovakia) 16.53; 7. Fabrizio Donato (Italy) 16.51; 8. Alexander Martinez (Switzerland) 16.28.
Javelin throw: 1. Tero Pitkaemaeki (Finland) 87.30 metres; 2. Andreas Thorkildsen (Norway) 86.14; 3. Magnus Arvidsson (Sweden) 83.09; 4. Tero Jaervenpaeae (Finland) 80.82; 5. Aleksandr Ivanov (Russia) 79.49; 6. Guillermo Martinez (Cuba) 78.96; 7. Igor Janik (Poland) 78.93; 8. Eriks Rags (Latvia) 73.99.
WOMEN’S:
100 metres: 1. Veronica Campbell (Jamaica) 11.11 seconds; 2. Christine Arron (France) 11.22; 3. Torri Edwards (US) 11.22; 4. Carmelita Jeter (US) 11.27; 5. Aleen Bailey (Jamaica) 11.30; 6. Miki Barber (US) 11.30; 7. Lauryn Williams (US) 11.34; 8. Tezdzhan Naimova (Bulgaria) 11.37.
200 metres: 1. Kim Gevaert (Belgium) 22.75 seconds; 2. Torri Edwards (US) 22.81; 3. Sherry Fletcher (Grenada) 23.08; 4. LaShauntea Moore (US) 23.13; 5. Muriel Hurtis (France) 23.29; 6. Debbie Ferguson (Bahamas) 23.34; 7. Hanna Marien (Belgium) 23.56; 8. Cydonie Mothersill (Cayman Islands) 23.57.
400 metres: 1. Sanya Richards (US) 49.29 seconds; 2. Nicola Sanders (Britain) 50.34; 3. Novlene Williams (Jamaica) 50.66; 4. Mary Wineberg (US) 50.76; 5. Shericka Williams (Jamaica) 51.06; 6. Amy Mbacke Thiam (Senegal) 51.21; 7. Ilona Usovich (Belarus) 51.23; 8. Shereefa Lloyd (Jamaica) 51.85.
Mile: 1. Maryam Yusuf Jamal (Bahrain) four minutes 17.75 seconds; 2. Yelena Soboleva (Russia) 4:21.16; 3. Olga Yegorova (Russia) 4:24.24; 4. Yuliya Chizhenko (Russia) 4:24.79; 5. Agnes Samaria (Namibia) 4:25.01; 6. Ibtissam Lakhouad (Morocco) 4:25.35; 7. Sarah Jamieson (Australia) 4:25.95; 8. Carmen Douma-Hussar (Canada) 4:26.76.
3000 metres: 1. Meseret Defar (Ethiopia) eight minutes 24.81 seconds; 2. Prisca Jepleting (Kenya) 8:37.92; 3. Viola Kibiwot (Kenya) 8:43.05; 4. Sylvia Chibiwott Kibet (Kenya) 8:43.09; 5. Jessica Augusto (Portugal) 8:44.68; 6. Helen Clitheroe (Britain) 9:02.14; 7. Veerle Dejaeghere (Belgium) 9:09.58; 8. Mimi Belete (Ethiopia) 9:24.53.
Two miles: 1. Meseret Defar (Ethiopia) eight minutes 58.58 seconds; 2. Prisca Jepleting (Kenya) 9:14.09; 3. Sylvia Chibiwott Kibet (Kenya) 9:16.62; 4. Viola Kibiwot (Kenya) 9:18.26; 5. Jessica Augusto (Portugal) 9:22.89; 6. Helen Clitheroe (Britain) 9:38.39; 7. Veerle Dejaeghere (Belgium) 9:49.93; 8. Mimi Belete (Ethiopia) 10:06.60.
100-metre hurdles: 1. Susanna Kallur (Sweden) 12.52 seconds; 2. Delloreen Ennis-London (Jamaica) 12.61; 3. Michelle Perry (US) 12.61; 4. Angela Whyte (Canada) 12.69; 5. Lolo Jones (US) 12.70; 6. Sally McLellan (Australia) 13.00; 7. Josephine Onyia (Spain) 13.08; 8. Eline Berings (Belgium) 13.25.
High jump: 1. Blanka Vlasic (Croatia) 2.03 metres; 2. Yelena Slesarenko (Russia) 2.01; 3. Vita Palamar (Ukraine) 1.99; 4. Yekaterina Savchenko (Russia) 1.99; 5. Ruth Beitia (Spain) 1.93; 6. Anna Chicherova (Russia) 1.90; 7. Amy Acuff (US) 1.90; 8. Melanie Skotnik (France) 1.85
Pole vault: 1. Yelena Isinbayeva (Russia) 4.80 metres; 2. Svetlana Feofanova (Russia) 4.80; 3. Katerina Badurova (Czech Republic) 4.65; 4 equal. Monika Pyrek (Poland) 4.55, 4 equal. Silke Spiegelburg (Germany) 4.55; 6 equal. Fabiana Murer (Brazil) 4.40, 6 equal. Tatyana Polnova (Russia) 4.40; 8. Yuliya Golubchikova (Russia) 4.40.—Reuters