I was quite fortunate to be actually involved in this meet. I can confirm the track was ratified by IAAF on saturday it was on platform above pavement level as the ground wasn’t an even surface. It was a mondo track 225m long with timing gates at 50,100 and 150. The boards used under the mondo surface are the ones used in temporary exhibitions and icerinks. The track was very quick indeed. Even with the rain it never saturated the track leaving it still very fast… Having watched his entire warm up I was amazed at the time he ran. The warm up area was small. He did 4-6 build up runs over 30-35m meters. Tech drills with a small run off at the end,then he jumped onto the physio bed and was dynamically stretched out. Amazing performance with a 45-50 min warm up mainly consisting of ART work!