Joseph Kiprono was leading a half-marathon in Colombia.
It was the largest single improvement on the marathon world record since Derek Clayton improved the mark by 2:23 in 1967.
Diack was head of the governing body of global athletics from 1999 until his arrest in France in 2015.
Semenya beat Nakaayi at the annual ISTAF athletics meet in Berlin, Germany.
Okeyo had been provisionally suspended by the IAAF in November 2015.
He shifted his training from Namboole stadium to Uganda Christian University’s murram track.
The laboratory, due to open next month, will test all doping cases in international track and field in Kenya, Ethiopia, Eritrea, Tanzania and Uganda.
Cameroon, Ghana, Guinea Bissau, Burundi, Swaziland, Uganda and Djibouti only have one athlete each on the team.
Leni walked away with sh80,000 for the win just like all the day’s winners.
Her remarkable effort also smashed her own previous personal best by more than 15 seconds
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