In 2014, Gemma and Arctic Soul were reserves for Great Britain at the World Equestrian Games, but as they weren’t called upon, they went on to finish the year with a fifth place at Burghley Horse Trials. Gemma has also finished third at Badminton Horse Trials (2016) with Arctic Soul and third at Burghley in 2017 on the same horse. She achieved a runner-up placing at the top level at Pau Horse Trials on Pamero 4 in 2018.
Gemma was a member of the British squad at the 2016 Rio Olympics on Quicklook V and the pair also represented Britain as individuals at the 2017 Strzegom European Championships, where they finished eighth.
In 2018 Gemma won her first senior championship medal when she and Arctic Soul were the pathfinders for the gold medal-winning British team at the World Equestrian Games in Tryon in the USA.
Gemma Tattersall is based in West Sussex at a yard belonging to her main owner, Chris Stone, who was also the chief force behind the Event Rider Masters series and the owner of the stallion Chilli Morning, who won Badminton 2015 with William Fox-Pitt. The Stones have a breeding programme at the yard and Gemma is involved in producing and competing the young Chilli Morning progeny.