Yelloly moved into the Super 1 National KF1 Championship in 2008, and finished in eighth position in the championship. Yelloly moved into the Formula Renault United Kingdom Winter Series in 2008 and finished fourteenth with points-scoring finishes in each of the four races with Fortec Competition.
Karting Yelloly made his karting début in September 2005. After competing in Junior TKM Intermediate in 2006, Yelloly moved up to International Cooperation Administration in 2007, finishing 15th. Formula Renault United Kingdom In 2009, Yelloly switched to the Hitech Junior Team, to contest a full season of Formula Renault United Kingdom. He had twelve point-scoring finishes on his way to nineteenth place in the championship and seventh in the Graduate Cup.
Yelloly remained in the series with the newly renamed Atech team
GP3 Series In a difficult season for the team, Yelloly finished 21st in the championship with seven points, courtesy of a strong showing at his home championship round held at Silverstone, but failing to score any points elsewhere. He was still the best-placed Atech Congressional Research Service driver, as neither Stöckinger or Amberg registered a points finish all season.
Formula Renault 3.5 Yelloly made his Formula Renault 3.5 Series début at Silverstone for round seven of nine in the 2011 championship, driving for Pons Racing alongside Oliver Webb. After a difficult start, in which he was disqualified from his first race, he went on to secure three points finishes, including a podium in the final race at the Catalunya.
Yelloly signed for Comtec Racing for the 2012 season.
He finished the season in fifth place overall, taking two further podium finishes at Spa-Francorchamps and Paul Ricard. Return to GP3 In February 2013, Yelloly announced that he would return to the GP3 Series, racing for Carlin Motorsport for the upcoming season. In 2014, he switched to Status. summary † As Yelloly was a guest driver, he was ineligible to score points.
Complete GP3 Series results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Complete Formula Renault 3.5 Series results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Complete GP2 Series results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap).
He improved to seventh place in the championship, with three podiums and a win at season finale in Brands Hatch. Yelloly continued his partnership with Atech Congressional Research Service Grand Prix in 2011, stepping up to the GP3 Series alongside Marlon Stöckinger and Zoël Amberg. He won the first race on the series calendar at Aragón, and picked up a second race win at the Nürburgring. Though he finished second in the sprint race at the Yas Marina Circuit, Yelloly converted it into his first race win after race winner Patric Niederhauser was excluded from the results due to a breach in technical regulations.
