Born in Peebles, Scott grew up riding ponies and started showjumping with The Pony Club at the age of 10. He made his senior championship debut at the World Equestrian Games in 2010 riding Intertoy Z. That was the same year that Scott took the ride on Hello Sanctos. The pair were on the team that won historic team gold at the London 2012 Olympic Games, then team gold and individual bronze in the European Championships 2013. Scott finished third in the FEI World Cup Final in 2014 with Ursual XII. He contested his second World Equestrian Games with Hello Sanctos in 2014, and took team bronze with Hello M'Lady at the FEI European Championship in 2019.
Scott has won the London leg of the Global Champions Tour an impressive three times, and he remains the only rider to win the Rolex Grand Slam of Showjumping.
| Date | Event | Horse | Medals |
|---|---|---|---|
| 2022 | World Championships | Hello Jefferson | Team bronze |
| 2021 | Olympic Games | Hello Jefferson | |
| 2019 | European Championships | Hello M'Lady | Team bronze |
| 2013 | European Championships | Hello Sanctos | Team gold, individual bronze |
| 2012 | Olympic Games | Hello Sanctos | Team gold |