Dumoulin attacked on a short rise with 10 kilometres to go, following a move by AG2R La Mondiale's Geoffrey Bouchard. He eventually dropped Bouchard and caught a struggling Alessandro De Marchi but never really had much of an advantage over the peloton.
Hoping for an opportunity on final mountain finish
Dumoulin will be hoping to keep out of trouble in any crosswinds during Thursday's sprint stage 5, after getting caught up in a crash on stage 2. If he continues to get better over the next couple of days than the 20km Jebel Jais will be a much better opportunity for him to take a stage win.
Dumoulin is currently 1:04 down in the overall classification and much less of a threat should he go on a late attack.
Born in Ireland to a cycling family and later moved to the Isle of Man, so there was no surprise when I got into the sport. Studied sports journalism at university before going on to do a Masters in sports broadcast. After university I spent three months interning at Eurosport, where I covered the Tour de France. In 2012 I started at Procycling Magazine, before becoming the deputy editor of Procycling Week. I then joined Cyclingnews, in December 2013.
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