Shadrack Biwott has been on fire recently as he was 5th in New York in the fall and 4th in Boston earlier this month. However, he was running unsponsored this spring. He has now found a sponsor - the Hansons-Brooks team.
https://twitter.com/skiptoob/status/857057064811507712
https://twitter.com/hansonsrun/status/857059941181530113
While I'm citing Hansons tweets, I loved this tweet that they put after Boston. It definitely needs to show up in a WTW.