We may never get to see him in a 1500 so this may be the next best thing.
"I'm excited to try this race. People are always asking me how would I run at 1500. I always say that's too far to run against the miler guys! But 1000m is of course shorter and closer to my racing distance.
"I've got no time or plan in mind but I'm excited to test myself and see what I can do," added Rudisha, who will be competing in the Czech city for the fifth time.
One publicly unstated goal could be the meeting record of 2:15.08 set by Ilham Tanui Ozbilen of Turkey in 2014, the fastest time that year over the rarely-run distance.
https://www.iaaf.org/news/news/rudisha-1000m-debut-ostrava-iaaf-world-challe