- Stage 3: Geneva - Poligny
- Date: August 3, 2026
- Distance: 156.5km
- Elevation gain: 2500 metres
- Start time: 13:25 CET
- Finish time: 17:40 CET
Heading into France and crossing the Jura Mountains, stage 3 features 2,500 metres of elevation gain over 156.5 kilometres. It may shake up the GC if it is raced hard but could also end in the sprint of a reduced peloton.