now the best time trialler in the race is thomas‘s nearest rival — the dutchman tom doumoulin.iro d'italia when that finished with a similar time trial. so he could make up a lot of time... then there's chris froome — who's won four individual time trials in grand tours — including during two of his tour de france victories and he also has a couple of olympic bronze medals in the discipline... and then there's geraint thomas — who won the british championships‘ time trial by more than half a minute back injune — so he's got form and obviously already has a huge advantage as the overall leader — so will doumoulin and froome be able to reel him in? well let's speak to someone who knows all about time trialling — 3 time british national champion — dr michael hutchinson. michael, first of all can you explain how the time trial works and then well get on to whether thomas can or can't be caught! it is really simple. the riders set off and compete against the clock. there is no team in perth. it is a solo effort and they call it the race of truth because it finds the strongest rider.