10K races near Pasadena

Spooky Dash is a Halloween-themed race series in Long Beach offering four distances: 5k, 10k, 15k, and half marathon. It accommodates a broad range of participants, from families and novices to those seeking a longer beach run. The course is straightforward: runners use a public path, sharing it with pedestrians and cyclists, and follow marked out-and-back loops. The 5k is a single out-and-back, the 10k is two laps, and the 15k is three laps. The half marathon consists of three 4.36-mile loops, making the structure clear before race day. Aid stations are located at turnarounds and the start/finish, providing water, Gatorade, and Gu. Registration includes a custom finisher medal, a drawstring bag, complimentary race photos, snacks, samples, and online results available soon after the event.

The Mean Girls 5K, 10K and Half Marathon transforms the LA River Path into North Shore High for a comedy-themed running event in Canoga Park. This race is part of Jed and Ted's Excellent Races, a San Fernando Valley series focused on '80s and '90s movie and TV themes, offering a relaxed, low-stress atmosphere rather than a large-city marathon feel. Participants can select a 5K, 10K, or half marathon, with the themed setup accommodating casual runners, local regulars, and those seeking a longer distance. The primary course begins in Canoga Park, following the paved LA River path. The 10K is an out-and-back covering approximately three miles of continuous path without any traffic crossings. 5K participants utilize a portion of this route, while half marathoners complete the course twice with an additional section. Refreshments are available at the start line and the 5K turnaround. The decorations are understated but align with the theme, the medals are unique to each race, and the finish area is relaxed, allowing runners to converse with race directors and begin recognizing other participants over time.

The RunThrough USA Long Beach Race Weekend offers a 5K, 10K, and half marathon, starting at Shoreline Aquatic Park in Long Beach, California. Participants can select from 3.1 miles, 6.2 miles, or 13.1 miles along the coast of the Los Angeles area. The course is designed for fast times, with the Long Beach coastline serving as the primary scenery. RunThrough organizes the event, providing marshals to direct runners and encourage them at the finish. Post-race, the event village will offer food and beverages, including hot coffee and complimentary partner items.

The Montebello Heritage 5K/10K is an annual October running event in Montebello, California, offering both 5K and 10K distances. Both races begin at 1301 W. Whittier Boulevard, with the 5K starting at Montebello City Park. The event commences in the morning and is part of the Montebello Heritage Festival. The course follows historic Whittier Boulevard, connecting the race to a central Montebello street. This is a community-focused race, not exclusively for elite runners. The entry fee is the same for both distances, and all participants receive a shirt and medal.

The Back to the Future: 88 MPH Dash is a themed running event in Canoga Park, California, starting at 7:00 a.m. PST with three in-person distances: a 5K, 10K, and half marathon. Jed & Ted’s Excellent Races presents the series. Runners unable to attend in person may select a virtual option, the Multiverse Flux Capacitor Challenge. The race embraces Back to the Future and 1980s pop culture. The 5K is the 88 MPH Sprint, the 10K is the Twin Pines 10K, honoring the mall from the films, and the half marathon is the Enchantment Under the Run Half Marathon. The event acknowledges Back to the Future Day, plays 80s music, provides themed photo areas with futuristic props, and encourages period or character costumes.

Spooky Dam is a Halloween-season running series at Hansen Dam in Los Angeles, offering 5k, 10k, 15k, and half marathon distances. Races begin in the morning and are organized by A Better World Running. Costumes are encouraged, making it a more casual and playful event than a standard road race. The start and finish are located on the path opposite Hansen Dam Skate Park, with free parking available in a nearby lot. The course is an open out-and-back route where runners share the path with pedestrians, other runners, and cyclists. It's straightforward to navigate, featuring a single small hill around 0.6 miles from the start. An aid station on each loop provides water, Gatorade, and Gu gels. The 5k completes one loop, the 10k two, the 15k three, and the half marathon consists of three 4.36-mile loops. Participants receive custom medals, goodie bags, complimentary photos and videos, snacks, and results posted online within 12 to 24 hours.

The Monster Dash is a Halloween-season beach-path race series offering four distances that begin simultaneously at 7:30 AM: 5k, 10k, 15k, and half marathon. It is designed for runners seeking a straightforward, uncomplicated morning race, featuring bib pickup prior to the start, custom finisher medals, drawstring goodie bags, complimentary participant photos, snacks and samples, and results published online within 12 to 24 hours. The course consists of marked out-and-back loops on an open beach path, meaning runners will share the route with other pedestrians, runners, and cyclists. The 5k comprises a single out-and-back, the 10k involves completing that loop twice, the 15k requires three repetitions of the loop, and the half marathon utilizes three longer loops, each measuring 4.36 miles. The turnaround aid station is equipped with water cups, water bottles, Gatorade, and Gu gels. Groups of five or more runners are eligible for a discount, and volunteering provides a free race entry, even if a friend or family member volunteers while the runner participates.

The Sharsheret West Coast Dash offers a 5K and 10K run/walk at Dockweiler Beach in Los Angeles, with the race taking place at 12000 Vista Del Mar. The event is set for a Sunday morning in October. The 5K begins at 7:00 AM, followed by the 10K at 8:00 AM. The format allows participants to select either the 5K or 10K distance. Runners and walkers will assemble at a prominent Los Angeles beach location near Playa del Rey. Registration is managed via RunSignup. This event is part of the Sharsheret West Coast Dash series.

Costumes are integral to Trick or Trot, a Halloween-themed run held by the sea in Long Beach, California. CaliFlow Runs hosts the event at 5400 E Ocean Blvd, offering a 5K, 10K, a USATF-certified half marathon, and a Kids 200 Yard Dash. The half marathon begins in the morning, followed by the 5K and 10K. All distances employ a group wave start. The race route follows a paved coastal out-and-back path, shared with walkers, strollers, and beachgoers. This creates a public beach morning atmosphere with added race timing, rather than a closed-road city event. The 5K consists of one loop, the 10K of two loops, and the half marathon of three loops, totaling a certified 13.1 miles. Half marathoners may request an early start via email; however, early starters are ineligible for awards. Water stations and restrooms are available along the course. The top three male and female finishers in each distance receive medals, and runners also receive evening results and complimentary race-day photos.

The Long Beach Leprechaun Run begins at Granada Beach, adjacent to Rosie’s Dog Beach, located at 5100 E Ocean Blvd in Long Beach, California. This St. Patrick’s Day-themed running event offers a Kids Dash, 1 Miler, 5K, 10K, and Half Marathon, allowing families and longer-distance runners to participate on the same race morning. The event uses chip timing, the course is clearly marked, and there are no late starts. The half marathon starts first in the early morning, followed by the 5K and 10K, and then the 1 Miler and Kids Dash. Restrooms are situated near the start, aid stations are placed approximately every two miles, and the event accommodates walkers and strollers. The 5K, 10K, and Half Marathon follow the Long Beach waterfront. Irish-themed cheer zones are present along the route, and golden coins are hidden on the course for runners to discover and exchange for prizes. A costume contest encourages participants to wear green attire, and all finishers receive a custom medal along with festive refreshments. Children have their own Little Leprechaun Dash, and the Shamrock Treasure Hunt is available for kids not participating in the races. The finish area maintains the theme with photo opportunities featuring pots of gold and rainbows, contributing to the event's character as a community-focused race.

The Happy Halloween 5k, 10k, 15k, and Half Marathon is a Halloween morning race in Long Beach, starting at 7:30 AM. It offers four distance options on the same beach-path setup. This event is designed for runners seeking a straightforward, low-pressure race instead of a complex point-to-point course. The distances vary from a single 5k to a half marathon composed of repeated loops. The course features marked out-and-back loops on an open beach path, shared with pedestrians, cyclists, and other users. The 5k is one out-and-back, the 10k is two repetitions, the 15k is three, and the half marathon consists of three 4.36-mile loops. An aid station at the turnaround provides water cups, water bottles, Gatorade, and Gu gels. Registration includes a custom finisher medal, a drawstring goodie bag, free photos, results posted within 12 to 24 hours, snacks, and samples. Group discounts are available for parties of five or more.