Hawkins brothers are on their way to Rio after London Marathon heroics

The Elderslie brothers join Eritrean-born Shettleston Harrier Tsegai Tewelde in the three-strong GB men’s marathon contingent.

Callum already had the qualifying time and was favourite for selection, and his top Briton finish on Sunday confirmed his place in the team.

The Kilbarchan AAC runner beat the world record holder Dennis Kimetto and went to third in the Scottish all-time list with a remarkable run of 2.10.52 to finish eighth on a day when winner Eliud Kipchoge went very close to beating the world record.

Derek missed out on automatic selection but his 14th place and third Brit finish, in a personal best time of 2.12.57, was enough for the selectors to put him on the plane to Rio.

The top two Brits were guaranteed to go to Rio, with Tewelde finishing as the second Brit.

Callum could not hide his delight at his groundbreaking run.

He said: “I’m really happy. That was the aim since October when I ran in Frankfurt, I was aiming to be in the top two Brits when they released the selection policy.

“My brother has run marathons and my dad, who is my coach, has really looked into it and helped educate me in how to run marathons.”

The Elderslie athlete admitted he had to dig deep on the final stretch as he began to tire, but he took inspiration from a raucous British crowd cheering him on.

He added: “A couple of miles out I was really struggling because I put a really big dig in just after halfway.

“I was really pushing, especially just down the home straight.

“It was amazing to be running in front of a British crowd. To have people shout your name basically the whole way, it was unbelievable and it kept me going in those last couple of miles.”

A number of other Kilbarchan athletes were running at London, including Robin Scott, third in the over-70s age group in 3.31.27. And at the other end of the age scale, in the mini-marathon, Laura Stark was third, first Scot, in the under-17 girls race, in 16 minutes 33 seconds.