Tom Bosworth can walk faster than most of us can run. The British Olympic race walker can walk 10mph and cover 5km in just 18 minutes.
He told ITV London he hopes it is quick enough to earn him a place on the podium at London 2017 this summer.
The race walk is being held on the Mall in London on August 13th. The athletes competing in the 20km race will complete ten laps of the circuit around Buckingham Palace.
Thousands will line the route - and millions more will be watching at home - but it's the race officials who he fears the most, as the rules are incredible strict when determining what is walking, and what is running.
Tom had a memorable 2016; he proposed to his partner in Rio and he finished the Olympic race walk in a respectable sixth place.
The 27-year-old will find out on July 11th if he's been selected. As Britain's number one race walker, he is expected to be on the starting line.