Competition is nothing new to Clarksons brokers, but for one day only this Tuesday their main rivals will be their colleagues.

Around 250 staff from the world’s largest shipbroker are going head-to-head for a good cause in a team HIIT class competition, which is akin to circuit training.

The Clarksons Playoffs, a fitness challenge involving teams from offices around the world, is being organised as part of the London Lord Mayor’s City Giving Day.

It is described as an intense fitness challenge with six exercises over six minutes, with 45 seconds of workout time and a 15 second breather while moving to the next station.