He was a member of the gold medal-winning pony European eventing team in 2007 with his ride Dick Taytoe.

[4] McEwen and Toledo De Kerser were selected to represent Britain at the delayed 2020 Summer Olympics and won gold in the team event.

[5] McEwen was presented with a Member of the Order of the British Empire (MBE) in the 2022 New Year Honours for services to equestrianism.

[6][7] In June 2024, he was confirmed as part of the Great Britain team to compete at the 2024 Paris Olympics on JL Dublin.

[8] late April early May June early September late October mid April early October RET (Dry Old Party) 27th (Strike Smartly) 16th (Figaro van het Broekxhof) EL (Toledo de Kerser) EL (Bob Chaplin) EL (Bob Chaplin) WD (Luna Mist)