Sadly an L-29 crashed fatally during the Jet Gold race on Sunday, video seems to show the aircraft in the lead and in a tight left bank, then rolling wings level or even right and passing very close to second place aircraft before rolling left again and descending fairly gently into the ground. Race red flagged and I don't think they flew the Gold Unlimited. Maybe GLOC?
https://aviation-safety.net/wikibase/283529