A South East Queensland farmer has completed what might be the world's longest solo obstacle course, stopping along the way to breastfeed her youngest child in a bid to raise money for drought-affected farmers.

Key points: It took Jess Ehrlich nine days, 22 hours and 18 minutes to complete the 1,000km course

It took Jess Ehrlich nine days, 22 hours and 18 minutes to complete the 1,000km course Ms Ehrlich set out to raise funds for drought-affected farmers

Ms Ehrlich set out to raise funds for drought-affected farmers The record attempt needs to be signed off by the The Australian Book of Records to become recognised

In nine days, 22 hours and 18 minutes, Jessica Ehrlich, 35, ran 500 kilometres and completed 1,000 obstacles.

While it could take weeks to be signed off by officials, the circuit is expected to be the longest on record for a female competitor.

"I did at least 46 kilometres a day and I had twelve days to do it in," Ms Ehrlich said.

"To manage that I had to do a couple of really long days with an extra lap, and each lap was 15.5 kilometres."

Ms Ehrlich said it seemed like an almost impossible feat, but she did it for the adventure.

"It just seemed like a really far out thing, that I didn't even know was humanly possible, so why not give it a crack," she said.

Faced with 4:00am starts, exhaustion, chafing and several blisters, Ms Ehrlich said it was far from an easy experience.

"[But] if I can do that, anybody can do it … it's just the mental stuff that holds us back," she said.

"My body felt stronger by day four … but by about the last 50 kilometres it was like my mind didn't want to do it anymore, trying to talk myself out of it, all the self-doubt starts to creep in and that's hard," she said.

The gruelling course had more than 1,000 obstacles — including climbing over walls and navigating wire fences. ( Supplied: Lorraine Maskill )

Breaks from running involved eating, sleeping and breastfeeding the youngest of her three children, before she was back out on the course.

"I think I just cried on and off for the last 40 or 50 kilometres because I was just exhausted mentally," she said.

"You're getting towards the end and you let down the walls of determination and so much emotion starts flooding through … but that's over now," Ms Ehrlich said

The course was set up at Eidsvold (about two hours west of Bundaberg) by Dave Holleran, who completed the male version of the course last year.

Each lap involved 30 obstacles including creek crossings, running steep inclines, tunnels, carrying weights, and dragging tyres through the bush.

Ms Ehrlich said the most challenging tasks involved water. ( Supplied: Lorraine Maskill )

Ms Ehrlich said by the final days, the worst obstacles involved water.

"I'd have to crawl on my hands and knees through icy cold water and then run another couple of kilometres before I walked through mud and plunged into an icy cold creek and swam 70 metres," she said.

'She's the kids' hero'

Ms Ehrlich's partner Andrew Dent said it had been a big few weeks for the family, but their children thought she was a champion.

"Thank goodness it's over, she can stop now," he said.

"It's been a long week trying to keep her prepared, well fed and rested, she's [the kids] hero."

In preparation, Ms Ehrlich said she ran around 16 kilometres most days, through paddocks in the area, with an occasional run up Mt Walsh thrown in for good measure.

The gruelling course was a certified 15.5 kilometre outdoor loop of mixed terrain. ( Supplied: Lorraine Maskill )

Mr Dent said family and friends were a key part in getting Ms Ehrlich over the finish line.

"A lot of family and friends were very supportive, and all the people that turned up during the week, and helped set up — it made me say 'wow'," he said.

Mr Dent said he was confident she would get through.

"I knew she'd be able to do it, she's very headstrong and she loves her running so put the two together she was going to do it," he said.

Raising funds for farmers

As a cattle and garlic farmer, Ms Ehrlich used the opportunity to raise funds for Drought Angels, a charity that provides personalised support for families and farmers doing it tough.

"The drought is just epic at the moment, lots of family and friends are being affected," she said.

"I know for us we struggle when it gets dry, sometimes financially and it's sad to see … this is happening on a mass scale to many people," she said.

So far, more than $3,000 has been raised for the charity, with the North Burnett community also getting behind the fundraising.

"I know [our contribution] is not much but it just might be something that lifts their spirits, just makes them see the light at the end of the tunnel again," Ms Ehrlich said.

"It's the small things, the kind acts that you can do that can really change a person's life or perspective," she said.

Breaking the record

Co-founder of The Australian Book of Records, John Taylor, said officials were still waiting on the paperwork and video footage of the record attempt to be submitted before it could be approved.

"Once we've seen all the evidence, we can then, as a team, work out whether they've broken the record or not," Mr Taylor said.

"We've got a couple of super athletes in Australia and they cover unbelievable ultra distances doing obstacles as well.

By the last stage of the course, Ms Ehrlich said it had taken its toll on her mental health. ( Facebook: Muddy Mummy Jess )

"Your mindset has to be absolutely perfect to be able to, as an individual, go out there and run and not just on a flat surface but to climb and jump over obstacles," he said.

Mr Taylor said the process of becoming recognised as a record breaker starts well before the event takes place.

"They [tell us] they're going to be attempting an Australian or world record," he said.

Jessica Ehrlich set out to smash the world record to help fellow farmers. ( Supplied: Lorraine Maskell )

"We then send them a set of rules and regulations and they would then need to acquire an independent witness.

"[In this case] they need to show there were obstacles on the course, [and], in the form of a satellite, the distances that they covered on the course," he said.

While the keepers of the records wait on the affidavit from the independent witness, Mr Taylor said it is possible this is a world-first.

"The wording of the record she's gone for, she may even be the first person to do it," he said.