DOHA, May 10: Americans Allyson Felix and David Oliver sounded a warning to their Olympic rivals with fine performances at the Qatar Super Grand Prix on Friday.

Felix completed a 100-400 metres double while Oliver ran 12.95 seconds in the high hurdles, 0.07 seconds outside Liu Xiang’s world record. Oliver’s time was a personal best and the fastest of the year.

Felix, who in 2007 became only the second woman after German Marita Koch in 1983 to win three gold medals at a single world championships in Osaka, clocked the year’s best time in both her events.

The world 200 metres champion clocked 10.93 in the 100 metres to better the year’s best of 10.96 set by Jamaican Kerron Stewart at Kingston on May 3. Jamaicans Sherone Simpson (11.09) and Sheri-Ann Brooks (11.14) completed the podium.

Felix, who also won gold in the 4x100 and 4x400 relays in Osaka last year, dominated the 400 metres clocking 49.83 seconds to improve on the year’s best of 50.47 set by compatriot Sanya Richards in April. Shericka Williams of Jamaica was second in 50.50 and Natasha Hastings of the US third with 50.80.

Oliver won easily from American Joel Brown (13.38) and Briton Andrew Turner (13.41).

World 400 metres champion Jeremy Wariner pulled out of the 200 metres just before the start due to an injury during the warm-up and fellow American LeShawn Meritt won in 20.08 seconds.

It was not immediately clear how serious Wariner’s injury was.

There was a surprise winner the women’s 1500 metres with Romania’s Liliana Popescu overtaking front runner Viola Kibiwot of Kenya in the final straight. Multiple world and Olympic 800 metres champion Maria Mutola of Mozambique came in fifth.

Leading results:

MEN’S:

100 metres: 1. Jaysuma Saidy (Norway) 10.01 seconds; 2. Darrel Brown (Trinidad and Tobago) 10.02; 3. Michael Frater (Jamaica) 10.08.

200 metres: 1. LaShawn Merritt (US) 20.08 seconds; 2. Joel Brown (US) 20.84; 3. Chris Williams (Jamaica) 20.91.

800 metres: 1. David Lekuta Rudisha (Kenya) one minute 44.36 seconds; 2. Abraham Chepkirwok (Uganda) 1:44.66; 3. Ahmed Ismael (Sudan) 1:44.82.

1,500 metres: 1. Abdelati Iguider (Morocco) three minutes 33.27 seconds; 2. Mohamed Moustaoui (Morocco) 3:33.31; 3. Antar Zerguelaine (Algeria) 3:33.32.3, 000 metres: 1. Augustine Choge (Kenya) seven minutes 32.01 seconds; 2. Edwin Cheruiyot Soi (Kenya) 7:32.13; 3. Moses Kipsiro (Uganda) 7:32.42.

110-metre hurdles: 1. David Oliver (US) 12.95 seconds; 2. Joel Brown (US) 13.38; 3. Andy Turner (Britain) 13.41.

400-metre hurdles: 1. Louis van Zyl (South Africa) 49.03 seconds; 2. Danny McFarlane (Jamaica) 49.10; 3. Isa Phillips (Jamaica) 49.71.

3,000-metre steeplechase: 1. Richard Kipkemboi Mateelong (Kenya) eight minutes 07.64 seconds; 2. Collins Kosgei (Kenya) 8:13.87; 3. Michael Kipyego (Kenya) 8:15.74.

Triple jump: 1. Randy Lewis (Grenada) 17.44 metres; 2. Leevan Sands (Bahamas) 16.88; 3. Aarik Wilson (US) 16.86.

Shot put: 1. Reese Hoffa (US) 21.48 metres; 2. Tomasz Majewski (Poland) 20.71; 3. Garrett Johnson (US) 20.65.

Discus throw: 1. Ehsan Hadadi (Iran) 67.20 metres; 2. Piotr Malachowski (Poland) 66.26; 3. Zoltan Koevago (Hungary) 64.70.

Javelin throw: 1. Andreas Thorkildsen (Norway) 87.59 metres; 2. Igor Janik (Poland) 83.21; 3. Mike Hazle (US) 82.21.

WOMEN’S:

100 metres: 1. Allyson Felix (US) 10.93 seconds; 2. Sherone Simpson (Jamaica) 11.09; 3. Sheri-Ann Brooks (Jamaica) 11.14.

400 metres: 1. Allyson Felix (US) 49.83 seconds; 2. Shericka Williams (Jamaica) 50.50; 3. Natasha Hastings (US) 50.80.

1,500 metres: 1. Liliana Popescu (Romania) four minutes 05.52 seconds; 2. Viola Kibiwot (Kenya) 4:07.08; 3. Ibtissam Lakhouad (Morocco) 4:07.93.100-metre hurdles: 1. Brigitte Foster-Hylton (Jamaica) 12.56 seconds; 2. Lolo Jones (US) 12.65; 3. Virginia Powell (US) 12.77.

3,000-metre steeplechase: 1. Donna MacFarlane (Australia) nine minutes 31.47 seconds; 2. Ruth Bisibori Nyangau (Kenya) 9:32.15; 3. Eunice Jepkorir (Kenya) 9:36.23.

High jump: 1. Blanka Vlasic (Croatia) 2.03 metres; 2. Anna Chicherova (Russia) 1.96; 3. Marina Aitova (Kazakhstan) 1.94.

Long jump: 1. Tatyana Kotova (Russia) 6.83 metres; 2. Maurren Maggi (Brazil) 6.75; 3. Chelsea Hammond (Jamaica) 6.69.

Pole vault: 1. Silke Spiegelburg (Germany) 4.50 metres; 2. Yuliya Golubchikova (Russia) 4.40; 3. Carolin Hingst (Germany) 4.20.

Hammer throw: 1. Kamila Skolimowska (Poland) 72.96 metres; 2. Anita Wlodarczyk (Poland) 70.66; 3. Ester Balassini (Italy) 69.65.—Reuters