Summerfest officials Wednesday announced changes to the start times for the inaugural Summerfest half marathon and 10K run, scheduled for July 10, 2011.

The half marathon will get underway at 8 a.m. with the 10K following at 8:15 a.m., two hours earlier than originally scheduled.

The runs benefit the Ronald McDonald House Charities of Eastern Wisconsin, Inc. Runners can find more information at the Summerfest Web site or register online at active.com. 

Entry fees are $60 and $40 through March 31, but go up starting April 1. Registration closes the day before the events.

Top 20 male and female runners in each race will earn a total of $22,000 in cash prizes. Top awards start at $2,500 and $1,250.