Donostia San Sebastian Klasikoa: San Sebastián › San Sebastián (224.8km)
Sivakov was first to react to Evenepoel and Simon Yates went clear of the peloton when the Belgian attacked on the Jaizkibel climb, with Yates on his wheel.
The Grenadier was soon joined by teammate Carlos Rodriguez and the pair were part of a larger chase group that was losing ground to Evenepoel each kilometre.
Seeing the chase faltering, the duo attacked the chase group and put in an impressive effort to distance their rivals, while not allowing the leader to extend his lead.
After a key contribution, Rodriguez unfortunately dropped back, but his selfless work ensured Sivakov took his second professional one day podium, finishing second behind Evenepoel.
The Spanish champion was narrowly edged into fifth on the line, but that result made it two Grenadiers in the top five on one of the toughest races on the calendar.