He was two time consecutive UCI World Downhill Champion during years 2006–2007 for Iron Horse racing team.

In the same year he raced the Downhill World Championships in Cairns, Australia on his enduro bike where he finished sixth.

3 of the 2016 Enduro World Series in Ireland on a course that required significant pedaling strength and technical ability.

Sam Hill is notable for being one of the only professional enduro mountain bikers to utilize flat pedals.

[5] 2003 Downhill World Championships, Lugano, Switzerland At the time Sam was only 18 years of age and still in the junior class (Under 19).

Eric Carter, the mtb legend saw Sam riding for the first time at this race and said of him, "He went through a section so fast, and it was so rocky and muddy and loose, that I couldn't understand... how he made his bike do what it did".

If he had stayed on he would have surely beaten Greg Minaar for the fastest time and the Senior Men's World Title at the age of 18.

However, with approximately 30 riders left to set off, on arguably the most dangerous course the world cup series has seen in many years, the skies opened up.

The World Champion at the time was ripping down the track faster than top riders were riding it in the bone dry, perfect conditions.

Hill's split time was faster than second place (Steve Peat, who raced in the dry), but a fall later in his run meant the Aussie ended up in a very respectable third position, just 1.63sec off first place rider Matti Lehikoinen, who also completed his final run in the dry.

1st Place: UCI Mountain Bike World Championships 2010, Downhill – Mont Sainte Anne, Canada