Pimp & Ho Ball: Rich’s will host its 5th annual Pimp & Ho Ball at 10 p.m. The ball includes a costume contest with $500 in cash and prizes. Richs is located at 1051 University Ave. in Hillcrest. For more information, call 619-295-2195 or visit www.richssandiego.com.

Pumpkin carving contest: Cheers will host a pumpkin carving contest at 8 p.m. There will be prizes for first, second and third place. Cheers is located at 1839 Adams Ave. in University Heights. For more information, call 619-298-3269 or visit www.cheerssandiego.com.

Haunted Mansion on Hancock: Spin will host Haunted Mansion on Hancock at 9:30 p.m. Haunted Mansion will feature special guest DJ and producer Joe Guthereaux (LA) and DJ IDeaL (San Diego) spinning dance music and DJ Lil Chris (San Diego) spinning hip-hop in the Atlantis room. Nicole and Michael Mack will emcee the event, which will include drink specials as well as cash and prize give aways all night long. Spin is located at 2028 Hancock St. in Mission Hills. For more information, call 619-294-9590 or visit www.spinnightclub.com.

Fang Bang: Universal Hillcrest will host Fang Bang – A Vampire Ball at 9 p.m. The club transforms from a whimsical wonderland to a bloody bordello of bliss. The event features DJ Frankie M. spinning high energy house and top 40 mixes. Universal Hillcrest is located at 1202 University Ave. in Hillcrest. For more information, call 619-692-1900 or visit www.universalhillcrest.com.

Before Nightmare on Normal Street: Start your night off before Nightmare on Normal Street at Baja Betty’s at 7 p.m. More than $1000 in cash and prizes will be given away. Everyone entered is a winner. Baja Betty’s is located at 1421 University Ave. in Hillcrest. For more information, call 619-269-8510 or visit www.bajabettyssd.com.

Nightmare on Normal Street: The San Diego LGBT Community Center will host Nightmare on Normal Street at 7 p.m. The streets will be filled with people showing off their elaborate Halloween costumes and mingling about in entertaining fashion. Guests are welcome to come with or without a costume to enjoy the festivities of food, cocktails and a fun costume contest. The event costs $5. Nightmare on Normal Street will take place at the intersection of Normal Street and University Avenue in Hillcrest. For more information, call 619-692-2077 or visit www.thecentersd.org.

Kickers Country Halloween Contest: Kickers will host Kickers Country Halloween Contest at 10 p.m. First prize winner gets $200, second prize winner gets $150 and third prize winner gets $50. Urban Mo’s is located at 308 University Ave. in Hillcrest. For more information, call 619-491-0400 or visit www.urbanmos.com.

Haunted Halloween: Richs will host Haunted Halloween at 9 p.m. The event includes an outdoor haunted house, beer garden and a $1,000 costume contest. Richs is located at 1051 University Ave. in Hillcrest. For more information, call 619-295-2195 or visit www.richssandiego.com.

Halloween party: The Brass Rail will host a Halloween party at 8 p.m. The Brass Rail is located at 3796 5th Ave. in Hillcrest. For more information, call 619-298-2233 or visit www.thebrassrailsd.com.

Club Sabbat: The Flame will host Club Sabbat at 9 p.m. The event will feature a costume contest hosted by Linda E with $1,000 in cash and prizes and special Thriller performance by LaFemmes. Cover is $15. The Flame is located at 3780 Park Blvd. in Hillcrest. For more information, call 619-295-4163.

Costume contest with Nicole: Bourbon Street will host a costume contest at 11 p.m. Nicole will host. The contest includes $500 in cash and prizes. Bourbon Street is located at 4612 Park Blvd. in University Heights. For more information, call 619-291-4043 or visit www.bourbonstreetsd.com.

Costume contest at Caliph: Caliph will host a costume contest at 11 p.m. Don Le Monster and Nathan Frey will host. First prize gets a $150 bar tab, second place gets $75 and third place gets $50. The Caliph is located at 3100 5th Ave. in Bankers Hill. For more information, call 619-298-9495.

Halloween on Maryland Street: Local residents Andy and Paula Cameron and neighbors will host Halloween on Maryland Street at 10 p.m. Several Maryland Street homes (just south of Meade Avenue) will incorporate large scenic displays, animatronic creatures, water-based fog, theatrical sound and lighting effects to create an interactive and family-friendly atmosphere for trick-or-treaters. Halloween on Maryland Street will take place at 4300 Maryland St. in University Heights. For more information, visit http://members.cox.net/trickrtreat/Trick.htm or e-mail trickrtreat@cox.net.

Halloween Burlesque Carnival: The Ruby Room will host Halloween Burlesque Carnival at 8 p.m. Burlesque performers from New York, San Francisco, Los Angeles, and local favorites present dancing and debauchery. Vote for your favorite costume in the crowd ($300 prize for winner). The Ruby Room is located at 1271 University Ave. in Hillcrest. For more information, call 619-299-7372 or www.myspace.com/therubyroomsd.

The Haunted Trail: Balboa Park’s The Haunted Trail opens at 7 p.m. The Haunted Trail is an all-outdoor haunted attraction that follows a mile long trail through a twisted grove of pines and gnarled oaks. The Haunted Trail is located at Juniper Street and Balboa Drive in Balboa Park. Tickets start at $14.99. For more information, visit www.hauntedhotel.com or call 619-239-0512.

The Haunted Hotel: The Haunted Hotel opens at 7 p.m. The Haunted Hotel is a innocent-looking, old building transformed every year into a walk-through horror house screamfest and features disturbing special effects and live action rooms. The Haunted Hotel is located at 424 Market St. in Downtown. Tickets are $14.99. For more information, visit www.hauntedhotel.com or call 619-231-0131.

Ghost Tours: Ghost Hunter Michael Brown will host Ghost Hunt and Walking Ghost Tour in Old Town San Diego at 11 p.m. The hunt is a visit of the haunted Whaley House property and the tour is a walk to find ghosts. The Ghost Hunt and Walking Ghost Tour are about 90 minutes together. Both activities start at the water fountain in front of Barra Barra Restaurant at 4016 Wallace St. in Old Town San Diego State Historic Park. For more information, call 619-972-3900 or visit www.oldtownsmosthaunted.com.

Haunted Tales of the Ship: The Maritime Museum of San Diego will host Haunted Tales of the Ship at 11 a.m. Enjoy a carnival onboard the ship with games, prizes and food at 11 a.m. and ghostly tales and eerie legends during a lantern-led tours around the Star of India at 5 p.m. The ship is home-ported at the museum. Tickets starts at $8. The Maritime Museum of San Diego is located at 1492 North Harbor Dr. in Downtown. For more information, call 619-234-9153 or visit www.sdmaritime.org.

Scream Zone: Del Mar “Scaregrounds” will host its annual Scream Zone from 7 p.m. to midnight. Scream Zone will feature a house of horrors with rooms filled with “terrifying scenes and scares,” a hayride through haunted barns on the racetrack and the Chamber, a largest spinning tunnel. Admission starts at $14.99. The Del Mar “Scaregrounds” is located at 2260 Jimmy Durante Blvd. in Del Mar. For more information, call 858-755-1161 or visit www.sdfair.com/screamzone.