Some interesting quotes from Rudisha's coach in this article:http://www.supersport.com/athletics/africa/news/150322/Rudisha_on_right_track_coach
On the one hand, he seems to admit 1:44.9 is a long way from 1:40.9. On the other hand, he seems to make a few excuses about the weather.
What do you think? Was anyone at the meet? How cold/windy was it?
This webstie make it look like it was 50s or 60s?
http://www.timeanddate.com/weather/australia/melbourne/historic#