The Giro Donne left sea level in Belluno yesterday. It will not come back.
Anna van der Breggen carried the maglia rosa through the Stage 4 mountain time trial to the Nevegal with more authority than anyone — including the route designers — had fully anticipated. The SD Worx-Protime rider put 1:04 into world time trial champion Marlen Reusser and 1:10 into Demi Vollering across 7.2 kilometres of Dolomite-foothills gradient, transforming a race spent entirely in sprint finales into a GC contest with one rider already clear. Stage 5 does not resolve that contest. It complicates it.
The Stage: From the Piave Valley to the Cadore
Today's 146 kilometres leave Longarone in the broad Piave valley and head northeast through the Cadore — the historical region of the eastern Dolomites that cyclists outside Italy have undercovered and locals have claimed entirely as their own.
The route traces the Piave and then the Boite valley to Cortina d'Ampezzo, the famous resort city that has hosted Giro finishes and Winter Olympics events. Cortina arrives at roughly the 70-kilometre mark, at the foot of the day's first serious climbing. The valley kilometres are not neutralised — SD Worx carries pace from the start, and break moves will be dealt with early — but the racing character changes completely once the road rises out of Cortina.
Passo Tre Croci (7.9km at 7.2%) climbs out of Cortina's northeast edge — a consistent alpine pass road, aesthetically dramatic with the Torre di Babele profile rising behind the descent toward Misurina on the far side. The gradient does not break but does not shock. It is the kind of climb that strips the group quietly: wheels come off the back before riders know they are going.
After the Tre Croci descent, Passo Sant'Antonio follows immediately: 8.3 kilometres at 7.5%, with kilometres two through four repeatedly touching double-digit gradients. This is the stage's hardest individual climb by sustained difficulty and the most likely point of GC selection. Any meaningful split in the maglia rosa group will happen on the Sant'Antonio's middle ramps, roughly 35 kilometres from the finish in Santo Stefano di Cadore.
The Costalissoio circuit runs twice in the final section — a 2.7-kilometre wall averaging 10% that the race uses as a finishing loop. First ascent, descent, second ascent. The final Costalissoio summit sits around 16 kilometres from Santo Stefano di Cadore, leaving a largely downhill run-in through the Comelico valley to the finish. Three categorised climbs. Four summit crossings in the final 90 kilometres. 3,400 metres of total elevation.
The GC Picture
Van der Breggen's 1:04 lead over Reusser and 1:10 over Vollering was built in a single afternoon on a climb where she was simply the strongest rider in the race. The question today is whether she can reproduce that authority across a full-length alpine road stage after a hard ITT effort — or whether the accumulated work opens the door for the others.
Demi Vollering (FDJ United-Suez) is the most dangerous attacker. She has the tactical intelligence to pick a moment — the Sant'Antonio's steep middle section, or the first Costalissoio — and produce the kind of gap that 90 kilometres of mountain road can magnify before the finish. A 40-second gain across today's terrain is achievable if she attacks with conviction and the group hesitates.
Marlen Reusser (Movistar) arrives 1:04 back. The pure time trial profile that should have served her better on the Nevegal ITT may translate more effectively today — longer sustained gradients reward threshold power, and Reusser's engine is built for exactly that. A 1-minute deficit is not comfortable, but it is four mountain stages away from the finish in Sestriere.
Antonia Niedermaier (Canyon-SRAM) sits at 1:26 and Monica Trinca Colonel (Liv AlUla Jayco) at 1:31. Both are close enough that a fractured, multi-attack stage 5 — with Vollering and Reusser driving separate efforts — could shuffle the podium before the day is out.
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Stages 6 through 9 carry the Giro Donne north and west toward the final summit at Sestriere on June 7. The race's remaining Dolomite and Alpine terrain means stage 5's gaps are not the last word — but they narrow or widen the window for everything that follows. A rider who arrives in Santo Stefano di Cadore this evening having extended a lead has the luxury of defence for the remaining days. A rider who concedes time needs to attack immediately.
The Cadore sets the terms. The Alps will decide them.
For a guide to cycling the Passo Tre Croci and the Dolomite roads that today's stage traces, see our Cadore cycling destination guide. For yesterday's Stage 4 Nevegal ITT coverage, see the Stage 4 field report.
