The 77th annual Los Angeles County Fair will run through Sunday at the Fairplex, two blocks north of the San Bernardino Freeway in Pomona. Horse races are run daily, with a first post time of 12:30 p.m. Today's events:
* Clay Walker--Today
* Issac Hayes--Friday
General admission to most grandstand shows is free with fair admission, but reserved grandstand, box and stage-area seats are available at all Ticketmaster locations or at (213) 480-3232, (714) 740-2000 or (805) 583-8700. All concerts begin at 8 p.m.
Contests, Special Events
* Today--La Verne Day, Community Hero ceremonies, Super Diner Stage, 6 p.m.; art demonstrations--featured artists: Ricky Maldonado, Robin Strayhorn and Bernie Granados Jr., Gallery, all day; Diaper Derby, Fairplex 4 Community Stage, 3:30 p.m.; Guess Which Wine, the Vineyard, 5:30 p.m.; high school marching band competition, Clock Tower Plaza, 6 p.m.; desserts contest, Creative Living, 7 p.m.