The sun is shining brightly and temperatures are rising as some 56,000 participants take on the 45th edition of the London Marathon.

While the female elite race was won by Tigst Assefa in a women’s-only world record time, the men’s winner Sabastian Sawe completed the 26.2-mile course in a little over two hours and others chase personal bests, crossing the finish line is the main goal for many.

Among the tens of thousands taking part for their chosen charities are Julie Barnes and Debra Harrison from Hull.

They told BBC London their slogan for the marathon was “finish lines not finish times”.

Ms Harrison is running for the charity Fit Mums and Friends, while Ms Barnes was lucky enough to get a place through the ballot.

They said they had one aim in mind: “Just finish it.”

Meanwhile, a contingent from Kidney Care UK included the parents and children of people who have benefitted from the charity’s services.

Cassandra Gilbert-Ward, 35, told BBC London that the charity had supported her family “a lot”.

She said: “My stepdad was diagnosed with kidney failure in 2020 during Covid, we had no idea there was anything wrong until he was in complete kidney failure.”

Jamie Salmon said she and her partner were running to fundraise for Kidney Care after their two-year-old son received treatment for damaged kidneys.

“He will be on lifelong medication and he has since been diagnosed with stage-two kidney disease,” she said.

“The ward he was treated on at Great Ormond Street was funded by Kidney Care, so it means so much to both of us.”

She said they were “over the moon” to have raised £13,500 so far.

Two protesters attempted to disrupt the race by throwing paint on Tower Bridge.

A member of the London Marathon event staff intervened to remove the pair from the path of the men’s elite race, which was able to pass unobstructed moments later, the Met Police said.

The two were arrested on suspicion of causing a public nuisance.

Warm weather has also presented an extra challenge.

Temperatures are due to reach around 22C (72F) in the capital, which will likely make it London’s fourth warmest marathon in its history, the warmest being in 2018 when the mercury hit 24.2C (76F).

The heat, however, did not stop many achieving personal bests.

Among those were army doctors Rhiannon Kirk, who finished in two hours and 55 minutes, and Helena Sexton, who crossed the line in three hours and three minutes.

Ms Kirk said: “I got back from Australia two days ago. I loved it, it was really good but the end definitely hurt.

“It was my first one so it was obviously going to be a personal best, but yeah I was happy.”

Ms Sexton, from Tetbury in Gloucestershire, said: “It was really hard in the heat but the atmosphere was amazing.

“To be fair there was loads of water stops, we just covered our heads with the water.”

Also achieving a personal best was Lauren Stockley, from Abergavenny in south Wales.

She finished in three hours and two minutes, knocking 12 minutes off her previous best time for a marathon.

“It was really good, it was very hot but I thought I hydrated well,” the 25-year-old said.

“There was a lot of water stations, so I was able to cope with it.”

Ant, who completed the marathon for Leukaemia Care, said he raised more than £3,500 in his mother and father’s memory.

“I lost my dad to leukaemia many years ago,” he said.

Reflecting on the race, he added: “[It was] obviously quite hot but it was great fun. This is my fifth one but first time in London so it was amazing.”

This year’s London Marathon also sees 103 participants attempt to break 87 Guinness World Records.

Among those are Alexander Knox, Jasper Wolley, Ben Littlejohns and Jim Baillie, who are trying to set a new record for the fastest time in a four-person costume.

They are dressed as Scooby Doo’s Mystery Machine.

Other record attempts include the fastest marathon in a firefighter’s uniform, dressed as a knight, dressed in a tent, on crutches and fastest male London Marathon runner dressed as a body part.