To raise money for heart disease research, Rob Ginnivan ran a half marathon not through, but over Canberra, Australia. He placed a treadmill in a hot air balloon and took off. The run was especially challenging because he had to make short strides and the basket tilted at different angles:
Link -via The Daily Telegraph (where there's a video)
Photo: Colleen Petch
Mr Ginnivan’s right leg seized up during his last two kilometres, as the tilt of the basket had him effectively running up hill, but he said he was delighted to complete the feat in a time of 2 hours and 18 minutes. [...]
A veteran of 18 marathons on six continents, Mr Ginnivan said before taking off that the biggest challenge of running in midair would be taking small steps when he was used to being able to stride out.
Link -via The Daily Telegraph (where there's a video)
Photo: Colleen Petch