| 2018 Clásica de San Sebastián | |
| Series: | 2018 UCI World Tour |
| Race No: | 27 |
| Season No: | 38 |
| Date: | 4 August 2018 |
| Stages: | 1 |
| Distance: | 228.7 |
| Unit: | km |
| Time: | 6h 03' 45" |
| First: | Julian Alaphilippe |
| First Nat: | FRA |
| Second: | Bauke Mollema |
| Second Nat: | NED |
| Third: | Anthony Roux |
| Third Nat: | FRA |
| Previous: | 2017 |
| Next: | 2019 |
The 2018 Clásica de San Sebastián was a road cycling one-day race that took place on 4 August in San Sebastián, Spain.[1] It was the 38th edition of the Clásica de San Sebastián and the twenty-seventh event of the 2018 UCI World Tour. It was won by Julian Alaphilippe in the sprint ahead of Bauke Mollema.
22 teams of seven riders have been invited to take part in the race: 18 teams of the UCI WorldTeam category; and four of the Continental Professional category. Forming a peloton of 154 cyclists, the participating teams are:[2] [3]