The role of a pacer will vary and depend on the speed of the pacer, their experience, and those running around them.

For elite or faster runners, their focus is specifically on performance, and issues such as nutrition and hydration are the bigger priorities.

Right at the back of the field there can be first-time runners, those that are happy to just get around the course, and those whose priorities are more about enjoying the experience than worrying solely about their performance.

“For elite athletes, it’s less chat and more time-focused and conversations are more about hitting speeds, taking on fluids and carbohydrates,” Nina explains.

“[London] had our first 2:45 pacer this year. It went all the way back to 7:30, where there is a more party atmosphere and all the runners are stopping to high-five the crowd and dance, so it’s a very different atmosphere.”

Another factor is remaining disciplined and sticking to the time they are pacing at.

For many runners, there is a temptation to use any energy left in the final few hundred meters for a sprint finish.

Nina has found the best way of being a pacer and not giving in to that urge, but also helping others achieve their goal.

“That is the one thing I struggle with as it’s just habit,” she explained.

“When I pace, I do look around me towards the end and if anyone is looking strong enough, I will encourage them to give it their all at the end.

“Anyone who is faster than me has achieved their goal pace if they’ve been sticking to me.”