Nairobi Southern Bypass to close from midnight on 24 October for Standard Chartered Marathon

The Kenya National Highways Authority (KeNHA) will close the Nairobi Southern Bypass from Ole Sereni Interchange to Kikuyu Town from midnight on 24 October until 2pm on 25 October, to allow the 2026 Standard Chartered Nairobi Marathon to be run. The Kenyan news site Kenyans.co.ke reported the notice on 19 October 2026.

KeNHA advises motorists to use Mombasa Road (A8) from Ole Sereni Interchange through Uhuru Highway, and the reverse. Road users are to follow traffic signs and the instructions of traffic marshals and police.

For specific journeys, KeNHA set out these alternatives:

Those travelling from Kikuyu to Mombasa Road should use Waiyaki Way. Those going from Kikuyu to Karen should use Dagoretti Road. Those going from Dagoretti to Mombasa Road can use Waiyaki Way, or Ngong Road through Mbagathi Way. Travellers from Industrial Area to Kikuyu can use Mombasa Road and Uhuru Highway, then Waiyaki Way.

Motorists from Karen heading to Mombasa Road should use Lang'ata Road. Those from Likoni Road going towards Mombasa Road can use Enterprise Road. Those from Mombasa Road towards Ole Sereni can reach Emaar Ole Sereni through Nextgen Mall.

The race is on 25 October, according to the organisers' website. All categories assemble outside the Carnivore restaurant on Southern Bypass Road. The 10km, 21km, 42km and wheelchair races finish at Uhuru Gardens; the website gives no finish point for the 5km race.

The organisers list these start times for 25 October: the 21km wheelchair race at 5:30am; the 42km full marathon at 5:45am; the 21km half marathon at 7:05am; the 10km road race at 8:45am; and the 5km family fun run at 10:00am. Runners are asked to arrive from 4:45am for the wheelchair race and the full marathon, 6:15am for the half marathon, 8:00am for the 10km and 9:00am for the 5km.

Assembly times are 5:10am for the wheelchair race, 5:35am for the full marathon, 6:45am for the half marathon, 8:40am for the 10km and 9:40am for the 5km. Registration questions go to [email protected] or 020 3293780.