Born in Bedford, Tandy followed brother Joe's route on the motor racing ladder, by starting out as an eleven-year-old in short oval Ministox machinery, in 1996.

Winning the ORC Championship at RAF Bovingdon, he continued the success at Arlington, Eastbourne (Southern), and at Wimbledon Stadium (London), before retaining the Spedeworth points title.

[4] Tandy moved into the main series for 2002, but struggled to find form and eventually languished down in tenth in the overall championship standings.

A win and a second place at both Thruxton[5] and Castle Combe[6] allowed Tandy to overhaul Peter Dempsey, Christian Ebbesvik and James Nash to achieve that runner-up position behind Freke.

[7] He then proceeded to win the 2006 Formula Ford Festival on the road, before a 10-second penalty was added post-race for a safety car misdemeanour, dropping him to fifth.

[9] After his close call the previous year, Tandy won the Formula Ford Festival at the end of the season, but only after MacLeod was given a two-second penalty post-race.

[11] The Shootout guarantees a place on the shortlist for the McLaren Autosport BRDC Award for the driver who scores the most points over the course of the three-race weekend at Snetterton.

With Ultimate Motorsport pulling out of the series, JTR became the de facto lead team for Mygale, with Tandy being touted as a championship contender.

After a double podium at the Oulton Park opener, Tandy suffered a somewhat disappointing weekend at Silverstone with low points finishes.

[17] Having negotiated the first lap incident which took out rivals Daniel Ricciardo and Renger van der Zande, Tandy drove away from the field to win by 8.608 seconds from Henry Arundel and Adriano Buzaid.

After Carlo van Dam left Kolles & Heinz Union, Tandy was signed up to drive at the Norisring in the Formula Three Euroseries.

Tandy was then offered the opportunity to compete in the Porsche Carrera Cup Germany at the Dijon-Prenois rounds with Konrad Motorsport where on his debut with no testing, he finished 2nd.

Tandy's full debut season ended with him putting in a strong challenge for the title, taking the fight with eventual winner René Rast, to the final race at the famous Autodromo Nazionale Monza.

He also won the GTC class at American Le Mans Series race at Laguna Seca with NGT Motorsport.

The Brit also drove a KCMG Oreca Nissan at five rounds of the World Endurance Championship, helping the team to finish runner-up in the LMP2 standings.

The Brit returned to Porsche's LMP1 factory team for the 2017 FIA World Endurance Championship, where he scored multiple podiums but no wins.

As Porsche left sports prototype racing for 2018, Tandy returned to the IMSA SportsCar Championship, sharing the #911 car with Pilet.