Athletes from more than 70 high schools are expected to compete Saturday and Monday at the indoor track and field state championships.

The Class B meet starts at noon Saturday at Bates College in Lewiston. The Class A meet begins at noon Monday at the University of Southern Maine in Gorham.

In Class B, the Greely girls will try to win their first state championship since 2008 and upend Waterville, which has won five straight. But the favorite is Orono, with distance ace Tia Tardy, who leads the state in three events.

The Class B boys’ meet could be wide open based on seeds, with Foxcroft Academy going in as the favorite over Greely, York and MDI.

In Class A, Westbrook could challenge for its first girls’ team title. The Class A girls’ meet could be close among Westbrook, Scarborough, Cheverus and Bonny Eagle, which is led by sprinter Elisabeth Redwood – the state leader in two events.

The Class A boys’ meet will feature Scarborough going for its fifth title in six years, against defending champion Falmouth and Deering.