Tom Dumoulin retained the pink jersey after a 161 km ride from Florence to Bagno di Romagna that saw the Dutchman and his Sunweb team pushed all the way before he maintained his overall race lead of 2min 23sec on 2014 champion Nairo Quintana (Movistar).
Italy's two-time and defending champion Vincenzo Nibali (Bahrain), who saw teammate Franco Pellizotti crash but get back on his bike, remains fifth overall at 2:47 as the contenders for the "maglia rosa" look forward to two days of comparative rest on stages 12 and 13, which are more suited to sprinters.
The overall victory hopes of Sky rider Thomas, whose bid more or less ended when he lost over five minutes in a crash on Saturday, now look conclusively over after the Welshman finished 2min 25sec in arrears to drop to over six minutes behind Dumoulin.
