- 25 teams and 175 riders will line up at the start
The 45th Clásica de San Sebastián will see 18 UCI WorldTeams take part:
- Alpecin–Premier Tech
- Decathlon–CMA CGM
- EF Education–EasyPost
- Groupama–FDJ United
- Lidl–Trek
- Lotto–Intermarché
- Movistar Team
- Netcompany INEOS Cycling Team
- NSN Cycling Team
- Red Bull–Bora–Hansgrohe
- Soudal–Quick-Step
- Team Bahrain Victorious
- Team Jayco AlUla
- Team Picnic–PostNL
- Team Visma–Lease a Bike
- UAE Team Emirates XRG
- Uno-X Mobility
- XDS Astana Team
Based on the UCI rankings, 3 other teams are eligible to take part in the Clásica, all of which will be on the start line for this year’s race:
- Pinarello-Q36.5 Pro Cycling Team
- Team Cofidis
- Tudor Pro Cycling Team
In addition, the organisers have invited 4 more teams:
- Burgos BH Burpellet
- Caja Rural-Seguros RGA
- Equipo Kern Pharma
- Euskaltel-Euskadi
The 25 teams will take part in the 45th Clásica San Sebastián, and a total of 175 riders will battle it out for a place at the top of the podium on 1 August in San Sebastian.