Greatest distance run on a treadmill in 12 hours (male)

According to Official Guinness Records,

The greatest distance run on a treadmill in 12 hours is 147.3 km (91.527 mi) and was achieved by Matthew Eckford (Australia), in Brisbane, Queensland, Australia, on 11 May 2018. Matthew ran in the foyer of 1 Eagle Street, Brisbane, Queensland, Australia.

For a complete list of 2018 records, please visit 2018 Guinness Records in Australia.

Other Australia records that might interest you:

• Fastest 100 m on inline skates
• Fastest time to solve a Rubik's Cube
• Fastest time to solve a 5x5x5 Rubik's Cube
• First circumnavigation of Antarctica in a sailboat south of the 60th parallel
• Fastest swim long course relay 4 x 100 metres freestyle (female)