Three you witnessed live, three you watched on a TV and the one you would rather forget!
Three live -
Andy & Jamie winning the doubles in the Davis Cup in Ghent in 2015
Birmingham City beating Arsenal in the League Cup final (sorry @Accountant Pete ) in 2011
Andrew Pozzi winning gold in the 80m hurdles indoor World championships in 2018 (Andrew is a member of Stratford Athletic Club and we took some junior members with us to see this in Birmingham - they were so excited, it made it a very special day).
Three on TV -
Andy winning Olympic Gold in 2012
Andy winning his first Wimbledon (or maybe his US title - hard to choose)
Jess Ennis winning Olympic Gold in 2012
The one I would rather forget -Birmingham losing the FA Cup semi final against Fulham at Maine Road in (I think) 1970/71. I should have learnt then that supporting Birmingham was always going to bring me more pain than pleasure.