PLEASANTON — A combination of more horse racing and the return of fireworks plus a break on the weather helped the Alameda County Fair set record attendance last year, and the formula worked so well that fair officials won't tweak much to this year's edition.

The Alameda County Fair will run from June 23 through July 11. The dates, which were announced Monday, include 15 days of horse racing with the possibility of an additional day.

The fair will run Wednesday through Monday for the near three-week duration and be closed June 29 and July 6. Horse racing will not occur June 28-29 and July 6. The fair is still awaiting approval from the California Horse Racing Board to add horse racing July 7, said April Mitchell, Alameda County Fairgrounds' event sales and marketing manager.

To accommodate the July 4 weekend, the fair will run on Mondays this year and will have its $2 Tuesdays converted into $3 Wednesdays. The fair is also shifting its free days for seniors from Wednesdays to Thursdays. Kids days will continue on Fridays, also with free admission. Independence Day fireworks are scheduled for July 2.

The Alameda County Community Food Bank and the fair are also teaming up June 28 for a food drive day, providing free admission to those who bring four nonperishable items with them to the fair. The nonperishable items will be donated to the food bank.

Last year, the fair attracted 434,919 visitors, who enjoyed everything from

food to horse racing to roller derby. Attendance was up by almost 87,000 visitors from 2008, and it broke the 1997 record of 431,000. The numbers include a single-day attendance of more than 50,000 people — the most in a single day in more than 20 years — who attended July 3 to see the fireworks.

The fair has also announced a few of its concerts with Tower of Power, War and country act Lonestar as some of the headliners. For update information on the Alameda County Fair, go to www.facebook.com/alamedacountyfair.

Robert Jordan covers Dublin and Pleasanton, contact him at 925-847-2184.