Republicans have a 56.6% chance of winning a majority.
(from your link, 9/22)
The model shows that 10 races could go either way. Turnout and enthusiasm will probably make the difference in all of those races. The Democrats are mostly indifferent, they would rather go have a latte than go to the polls. The Republicans and Conservatives are actively advocating for Republican defeats in several of these races, including Kansas. Odd that Harry Reid’s fate rests on the shoulders of his enemies and they are helping him to keep his job.