Nedd Brockmann powering through his 50 marathons in 50 days campaign for Red Cross

Nedd Brockmann's enjoying his long weekend, too - just not in the same way.

The 21-year-old will run three marathons, which will sit alongside the 33 he'd already run in the lead-up to the first weekend in October.

The ex-Kinross Wolaroi student completed his 35^th marathon on Sunday and come 5.30am on Monday morning will embark on his 36^th run of 42.2km as part of his epic 50-marathon effort.

He's going remarkably well for a runner nearing 1500 kilometres in seven weeks, but his motto is to "get comfortable being uncomfortable", so a smiling face following yet another marathon run is part and parcel of the endeavour.

Mr Brockmann's massive effort is to raise funds for Red Cross to support Australians living in poverty, something he's been moved to do since relocating to Sydney from Forbes to take up his trade and being confronted by the plight of the homeless.

He's so far run in the rain, the heat, and in the dark, powered out hundreds of kilometres on the treadmill, and weekend runs out to Narrabeen with some of his Sydney friends joining him in support.

He's also a regular running around Centennial Park in Sydney.

He's so far raised more than $42,600 with an ultimate goal of $50,000. You can support the Red Cross by going online to https://fundraise.redcross.org.au/fundraisers/neddbrockmann