Heavy rain added to the challenge of an already demanding obstacle course at Airfield Anarchy at Newark Showground at the weekend.
The military-style endurance course featured 40 obstacles including mud bogs, tyre walls, monkey bars, tunnel, nets and trenches. It finished with a dip into freezing water and a foam cannon.
Competitors took part in 5k, 10k or ten-mile races or the ultimate Epic race, a combination of all three distances.
Those taking part included Johno Lee, 32, a former soldier from Coddington, who lost his leg in a roadside bomb attack in Afghanistan.
He trained at Energized UK Fitness, Northgate, Newark, along with Mr Bob MacRae-Clifton, 54, from Newark who is vice-chairman of Newark Patriotic Fund, in preparation for the challenge.
Co-owners Samantha Putt, 28, and Gareth Johnson, 29, a personal trainer, who offered to train them free of charge, took part in the challenge with them along with personal trainer Ben Kettleborough, 32, of Farndon, gym regulars Debbie Burgin, 46, and her husband Rich Burgin, 47, from Long Bennington and Johno's brother-in-law Stephen Anderson, 24.
Ben finished the 5k course in 53mins, Robert finished in time of 1hr 47mins and the rest finished in 1hr 28mins.
Gareth said it had been a brilliant event. He said they got wet because of the obstacles along the way so the rain did not really matter.
"It was a tough one but we worked as a team and helped each other," he said.
He said one of the hardest challenges was the 30ft high inflatable wall which runners had to scale with the help of a rope and then slide down into icy cold water.
Johno said the rain had made the course very slippy in places and it was not until they actually encountered the obstacles that they realised how challenging some of them were.
"One of the worst parts was dredging waist deep through a stream of a mile-and-a-half," he said. "The best bit was finishing. It was a lot more tiring than we realised."
Newark Patriotic Fund member Ian Willis, 51, tackled the 5k course along with four of his children - Kayleigh 28, Emma, 27, and twins Sam and Sophie, 16 - and his work colleague Andy Jenkinson, 54, from Brant Broughton. They finished in 1hr 15mins.
Ian said it had been tough going, especially at the start, and the rain meant that part of an embankment in a wooded area had started to slip away.
"We worked as a team and helped each other," he said. "We were relieved when we finished but it all went well and we would do it again if we were asked."
Both teams were raising money for the Newark Patriotic Fund.
Harriet Applewhite, 28, of Danethorpe and her brother James, 24, were part of a six-strong team who completed the 10k course in a time of 2hrs 10mins.
She said it had been a very well set-out event with a lot of challenging obstacles. She said the rain had made it slippy under foot which had made it even tougher.
"I was covered in mud and soaking wet but there is just something about it," she said. "I really enjoyed going round as a team and the camaraderie with everybody helping each other."
A team from Code Fitness in Newark also took up the 10k challenge. Leroy Lindsay finished in 1hr 59mins while the rest - Ken Hall, Ben Humphries, Glenn Feltimo and Kevin Guest - finished in 2hrs 9mins.
Leroy said the best part was going down the steep water slide and finishing in water rather than mud.
"The toughest part of the race came towards the end, particularly when using overhead ropes to swing across water," he said. "At this point my energy levels had dropped but my training sessions with Code Fitness and Newark Striders Running Club really paid dividends."
The event director Mr Greg Goodall said about 2,000 runners had taken part in the event of which 450 completed the Epic race.
Ray Casson completed 75k over the course of the weekend to mark the 75th anniversary of the Battle of Britain. The competitors also included Mr Ralph Avallone who is the first professional obstacle course racer and plans to compete in a race on six of the seven continents.
Afghanistan veteran Stuart Robinson, who lost both his legs while serving there, was in a five-man team, called Team Legless. He completed the course with the help of his colleagues.
"This was perhaps the only event in Newark that thrived because of the bad weather," said Mr Goodall. "I am proud this is a local event and it is going to grow."
A music festival was held as part of the event with Toploader heading the line-up. Mr Goodall said that in total there were about 5,000 people on the Showground over the weekend.
On Sunday there was a flypast by a Vulcan and a spitfire.
Proceeds from the weekend will go to the RAF Benevolent Fund.