Okay updated the data from the big dump of Nairobi, Mandera et al. Took some time to review the results.
As expected Raila has taken a 6% lead in Nairobi and should maintain it, give or take a few, since Kibra & Langa'ta should offset Roysambu & Dagoretti South.
The main votes left are the Coastal counties (especially all of Mombasa), Meru, Embu, Kiambu, Parts of North Rift and Western.
So far coast turnout is running more than 10% less the national average and decreasing while Western for once since forever is close to the national average. If that can hold we have a good chance to going to a runoff.
Hence my gut check is to pay close attention to the Western turnout from now on.