Although born in the United Kingdom and competing as a British rider, Woffinden grew up in Perth, Western Australia after his parents Rob and Sue decided to move there in 1994.

In August 2007 he also signed for the Poole Pirates in the Elite League to ride at reserve, sharing the spot with Rye House Rockets team-mate Steve Boxall for the rest of the season.

The event was held at the Arena Essex Raceway, with Woffinden only dropping one point in the qualifying heats and winning the final ahead of Adam Roynon and Ben Barker.

[citation needed] After his father's death from cancer in 2010, the Rob Woffinden Classic has become one of the biggest events for speedway bikes in Western Australia.

Woffinden captained the Great Britain team that finished fourth in the 2014 Speedway World Cup Final in Bydgoszcz, Poland.

Until the end of 2014 he also rode for the Wolverhampton Wolves in the British Elite League, but announced in late 2014 that he would not be riding in Britain during 2015 in his quest to regain his World Championship.

On the way to his second championship success, Woffinden won the Czech Republic and Scandinavian Grand Prix while finishing second in Finland, Sweden and Slovenia and third in Poland II.

In 2018, Woffinden won his third world title ending the 2018 Speedway Grand Prix on 139 points and ten clear of rival Bartosz Zmarzlik.

[20] Shortly afterwards he returned to British speedway, joining Sheffield Tigers as an injury replacement for Jack Holder, who had been injured during the World Cup final.

[22] During the Gorzów round of the 2024 Speedway Grand Prix, Woffinden crashed heavily and was taken to hospital with a complicated broken elbow injury, effectively ending his season.