In December 2023, Ronnie O'Sullivan won the 2023 UK Championship in snooker, and in doing so he became both the youngest winner of the championship - in 1993 at 17y 358d - and the oldest winner at 47y 363d.
Are there any other instances of this across the wide world of sport, where a competitor is both the youngest and oldest winner of a competition at the same time?
To keep this from being too broad, I'll keep this to "major competitions" in their respective sports eg Champions League / World Cup in football, a Grand Slam event in Tennis, a Major event in Golf, Olympic events etc etc.