Osagie, 24, certainly seems to have successfully transferred his impressive winter form - he finished third at the European Indoor Championships in Istanbul - to the outdoor season.
He finished third in a highly-competitive 800m race, which was won by world record holder David Rushida.
But, more important, was his time of one minute 44.86 secons while British team-mate Michael Rimmer was also inside the selection standard as he finished back in sixth.
Perri Shakes-Drayton finished third over 400m hurdles in 55.25 while 400m runner Martyn Rooney, sixth at the last Olympics, was fourth behind LaShawn Merritt.
Greg Rutherford was less the happy with the organisation of the long jump competition - protesting he had not been told each athlete would only be allowed four jumps - and failed to go beyond eight metres.
Rutherford has the world leading jump of 8.35m from earlier this month but his best in Doha, 7.98m, was only good enough for fourth in a competition won by Russia's Aleksandr Menkov.
Also finishing just outside the top three were Samson Oni in the men's high jump and Kate Dennison in the women's pole vault, with best clearances of 2.27m and 4.50m respectively.
Goldie Sayers finished fifth in the women's javelin with a best throw of 61.03m while Stephanie Twell was 13th in the 3,000m and Emma Jackson fifth over 800m.