Stage 3 of the 2025 Tour de France was a flat stage that took place on .
The stage started in Valenciennes and finished in Dunkerque, starting at with an expected finish at (average speed of 44 km/h).
The total distance of the stage was 184.6 km. The stage included 1 categorized climb(s) and 1 intermediate sprint(s), and had a total elevation gain of 380 m, and a total descent of -409 m.
The stage included 1 categorized climb(s) and 1 intermediate sprint(s).
The neutral start for this stage is 6.6 km long with an average gradient of -0.2%.
Isbergues is a Sprint at 117.9 km (60 km to go).
Mont Cassel is a KOM cat. 4 climb, which starts at 144.7 km (33.2 km to go) and ends at 147.1 km (30.9 km to go). It has total distance of 2.4 km, and an average gradient of 4.4%, going from 48 to 151 meters of altitude.
The final 3 km for this stage starts at 174.9 km, has an average gradient of 0.1%, reaching 5 m of altitude.