on cross trainers, Simon and Graham came last and with Michelle afterwards collapsed of exhaustion. Then as Hayley was talking to the contestants, Simon collapsed again and was taken for medical treatment. The next round was a 6 km rowing race, Lisa and Michelle were eliminated. The final round was between Margie and Lydia in a 5 km race on the treadmills with Lydia ending up as champion winning the trophy, 1 kg advantage and call home. Week 9 – A 'Tyre'some challenge – The contestants were taken to a junk yard for the challenge. Contestants had to place 10 tyres onto a pole then off again and do the same to four more poles. Once at the end, they had to do the same on the return trip back to the start. The winner would get a 1 kg advantage at the weigh in and the person who comes last a 1 kg penalty at the weigh in. Margie easily won and the advantage but Lisa clearly struggled and came last getting the penalty. Week 10 – River Raft – For this week's challenge, the contestants were put into pairs by random. Michelle and Alex, Margie and Graham and Lydia and Kasey. They had to build a raft out of materials provided with rope and paddle down a river to the finish. The winning team got a 1 kg advantage on the scale while the losing team would be on room lockdown until weigh in with only a spin bike to occupy them. Michelle and Alex got a good head start and won the challenge while Lydia and Kasey not fairing to well with their strategy failing and nearly falling in many times, they lost and went on lockdown. Week 11 – 1 km Iron Man Super Challenge – As part of the eliminated contestants' return, the remaining five eliminated contestants without a weigh-in pass – Bek, Brenda, Hamish, Ryan and Shane – competed in their final challenge – a Biggest Loser Iron Man. For the first part, they had to swim against the current in a 150m swim parallel to the beach. They then had to run 100m up a sand dune, and answer three multiple choice nutrition questions correctly. If they answered a question incorrectly, they had to run to the bottom of the sand dune and then climb back up and re-answer the question. Once all