That 19.4 really was something to see.
Based on that and his performance in the 100 rounds, I thought him capable of maybe a 9.69 at WC's.
Why the 9.85 in Zagreb then?
Maybe Bolt is someone who needs to get warmed up in order to run well. Maybe his days of one-off sub-9.8 runs are over.
I'm sticking with my 9.88 corrected guess. It would be the equivalent of him running his first 100 round at a major championships, which I think is a pretty good guess, if he ran hard. If it were a championship, I would still guess maybe low-mid 9.7x in a final.
Any splits on that 19.4? Maybe he ran 9.78 on the curve!