Stage 4 of the 2023 Tour de Suisse was a mountain stage that took place on .
The stage started in Monthey and finished in Leukerbad, starting at with an expected finish at (average speed of 39 km/h).
The total distance of the stage was 153.6 km. The stage included 3 categorized climb(s) and 1 intermediate sprint(s), and had a total elevation gain of 2597 m, and a total descent of -1647 m.
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The stage included 3 categorized climb(s) and 1 intermediate sprint(s).
The neutral start for this stage is 1.4 km long with an average gradient of -1.7%.
Crans-Montana is a KOM cat. 1 climb, which starts at 82.5 km (69.7 km to go) and ends at 97.2 km (55 km to go). It has total distance of 14.7 km, and an average gradient of 6.7%, going from 517 to 1496 meters of altitude.
Sierre is a Sprint at 113.8 km (38.4 km to go).
Varenstrasse is a KOM cat. 3 climb, which starts at 115 km (37.2 km to go) and ends at 119.2 km (33 km to go). It has total distance of 4.2 km, and an average gradient of 4.5%, going from 551 to 740 meters of altitude.
Tissot KM (Turtmann) is a Bonus sprint at 129.1 km (23.1 km to go).
Tissot KM (Turtmann) is a Bonus sprint at 130 km (22.1 km to go).
Dorben is a KOM cat. 1 climb, which starts at 130.7 km (21.5 km to go) and ends at 149.8 km (2.4 km to go). It has total distance of 19.2 km, and an average gradient of 4.5%, going from 623 to 1492 meters of altitude.