He made his world senior championship debut at the 2011 World Championships in Athletics in Daegu, running 20.82 in the 200 m and finishing 5th in his heat. James was in the Great Britain Olympic team for the 2012 Summer Olympics, running in the 200 metres. He finished fifth in his heat of the 200 metres and failed to progress. At the 2014 Commonwealth Games, he failed to reach the 200 m final, but was part of the England team that won the silver medal in men's 4 × 100 m, running in the heats.[2] At the 2014 European Championships, he reached the semifinal in the men's 200 m, and was part of the Great Britain team that won the gold medal, running in the heat and final.[3][4]
In November 2011 Ellington attracted widespread press coverage by selling his sponsorship rights on eBay in the run up to London 2012.[5] The winning bid was £32,550, but the winning bidder was not genuine. Ellington eventually attracted sponsorship from skincare company King of Shaves, who offered to sponsor him if the eBay deal fell through.[6]
Accident
On 17 January 2017, Ellington was injured in a road accident alongside fellow sprinter Nigel Levine; the pair "were riding a motorbike when they were struck head on by a car travelling on the wrong side of the road".[7] They were in Tenerife, Spain, undertaking warm-weather training with a group of British sprinters. Both athletes were admitted to hospital and were described on 18 January as "conscious and stable".[7]The Guardian suggested that Ellington's injuries were "career ending" and stated that they consisted of "broken bones in his tibia and fibula and [he] is also believed to have fractured his pelvis".[8] On 8 May 2024, Ellington received a six figure out-of-court settlement from a Spanish motor insurance company which had admitted liability in relation to the incident.[9]