Mari Kiviniemi launched her campaign in April, delegates met in Lahti to elect a new leader and he won the second-round run-off.
Her campaign was formally launched in April. Delegates to the Centre Party Convention met in Lahti to elect a new leader on 12 June 2010. Kiviniemi won the second-round run-off, defeating Mauri Pekkarinen by a vote of 1,357 to 1,035. 
