Marco Arop has run the 2nd lap in the Olympic final in around 50.1 seconds. He did so while running both bends between lane 1 and lane 2, that's easily 5.5 extra meters.
Considering this he has just run something like 49.4 for 400 meters.
He has entered both the 800s in Lausanne and in Silesia - will he break the WR? How fast can he go?
Or Wanyonyi who has front run 1:41.19.
Will the WR survive this season? I don't think.