Biegi 10K w pobliżu Colma

Bay Front Run startuje i kończy się na Bayfront Boulevard w Hercules, Kalifornia, zaraz przy Bay Front Trail. Ten coroczny bieg dla społeczności ma w ofercie 5K, 10K, bieg/marsz na 1 Milę i Kids Fun Run. Główne biegi startują rano, a Kids Fun Run jest później. 5K i 10K są mierzone chipem i z wynikami, za to krótsze dystanse są dla piechurów, rodzin z dziećmi i maluchów. Trasa biegnie od Sanderling i Bayfront, wzdłuż Bayfront Boulevard, aż do wejścia na Bay Trail przy John Muir Parkway. Potem biegnie tym trailem przez Hercules w stronę Rodeo, a nawrotka jest na końcu Bay Trail. Dystans 10K to ta trasa dwa razy. Cała impreza wspiera Hercules Education Foundation. Po biegu jest jeszcze Bay Front Festival, gdzie będzie muzyka, food trucki, lokalne firmy, jakaś rozrywka i organizacje społeczne. Kto zapisze się wcześniej, dostaje koszulkę, pierwszych 350 na mecie ma medal, a najlepsi w 5K i 10K (kobiety i mężczyźni) dostają nagrody.

The Reservoir Dogs Trail Run is an October trail race held at San Pablo Reservoir, located near Orinda in the East Bay. All race distances commence and conclude at the San Pablo Reservoir Visitor Center. Participants can select from 5K, 10K, half marathon, or 35K distances. The event has a participant cap of approximately 300 individuals across all races. Inside Trail Racing organizes this event. The longer distances feature a 6.5-hour time limit, maintaining the structure of a genuine trail race as opposed to a casual reservoir run. The course's distinctive feature is its complete circuit around Briones Reservoir using EBMUD trails, incorporating segments typically accessible only with permits. Expect a mix of moderately technical dirt paths, open fire roads, undulating hills, wooded single-track, winding single and double-track sections, exposed ridgelines, and expansive vistas of the watershed. The 10K, half marathon, and 35K races involve less elevation gain compared to many other Inside Trail events, allowing for faster times while still providing road runners with a true trail challenge. Aid stations are equipped with gels, trail mix, salty snacks, fruit, Coke, and Stroopwafels; however, participants must carry their own water between stations. Finishers receive a tech shirt and a medal, age-group victors are awarded trophies, and one participant receives the unique "Dead Last Finisher" award. Notably, dogs are prohibited despite the race's name.

Kawowi maniacy! Ten Coffee Lovers Run to przede wszystkim luz. Żadnych chipów, po prostu biegniesz na luzie, żeby osiągnąć swoje cele. Pakiet startowy, czyli medal i koszulka, przyjdzie prosto pod Twój adres. Po biegu nabijasz mile, a my za każdą Twoją milę dorzucimy $1.

The Run for Education is a spring 5K, 10K, and Kids Fun Run held in El Segundo, California. Its purpose, reflected in the name, is to raise funds for the city’s K-12 public schools. The El Segundo PTA Council organizes the event, which is now in its fourth decade. The 5K and 10K courses are USATF-certified, winding through downtown El Segundo and adjacent neighborhoods. These routes offer a measured course for competitive runners and a straightforward local path for casual participants. The field comprises competitive racers, joggers, walkers, families, and children. Age-group medals are awarded to the top three finishers in the 5K and 10K, with medals given to all participants who finish a race.

Half Moon Bay Pumpkin Run sends runners onto the Coastal Trail with a pumpkin waiting for them at the end. It is a race weekend event in Half Moon Bay, California, tied to the Annual Art & Pumpkin Festival, with a Kid's Fun Run, 5K, 10K, and half marathon based around Hatch Elementary School and the Pacific-side trail. Senior Coastsiders hosts it, and the proceeds support programs for local older adults. The route follows coastal paths overlooking the ocean, with rolling but generally fast, flat terrain that works for beginners, fun runners, and people chasing a personal best. The half marathon starts early and has a 3.5-hour cutoff, while the 5K and longer races include chip timing and finisher medals unless runners opt out. The festival side adds the Great Pumpkin Parade, live music, pie-eating contests, costume contests, giant pumpkin displays, and free admission on historic Main Street in the self-styled World Pumpkin Capital.

The San Mateo Rotary hosts a Halloween-themed 5K and 10K run on flat paved paths in Seal Point Park, San Mateo. Both distances utilize the park setting near 1901 J Hart Clinton Drive. The event includes kid-focused activities alongside the main runs, such as a 50-yard dash where children receive medals. Runners also receive a goody bag, and the event features raffle prizes, giving it the feel of a local community run rather than a competitive road race.

Halloween Trick or Trot Run to kameralny bieg na Halloween na Crissy Field w San Francisco. Do wyboru jest 5K, 10K, half marathon i 1-mile Family Fun Run. Starty falami zaczynają się z rana, a każda fala ma limit uczestników, więc zapisy mogą się zamknąć, jak tylko fala będzie pełna. To jest dla biegaczy i chodziarzy w każdym tempie, a uczestnicy poniżej 18 roku życia mogą startować z opiekunem. Szczegóły trasy dostają biegacze przed dniem biegu. Organizacja jest prosta: nie ma odbioru pakietów, numery startowe dostaje się w dniu biegu, a gadżety wysyłają do zapisanych w USA. Pomiar czasu jest opcjonalny, bez chipów; biegacze mogą sami mierzyć czas apką i wysłać wynik do publikacji online i na certyfikat. Na mecie dostaje się medal, ręcznik albo coś podobnego i cukierki na Halloween po biegu. Kto nie zdążył się zapisać, może dołączyć do listy rezerwowej albo wybrać opcję wirtualną i przebiec dystans zdalnie.

The PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO is a running event in San Francisco offering 5K, 10K, and half marathon distances. Organized by The Best Races, its peanut butter and jelly theme lends a playful tone rather than intense race-day focus. The event features a relaxed atmosphere. Participants are encouraged to "spread the fun" and approach the day with "no stress, no expectations," running at their own pace. While specific route details are not provided, the race emphasizes feel-good miles, a satisfying finish, and the concept of running your own way.

The Veterans Day Freedom Run in San Francisco is a road run at Crissy Field, offering 5K, 10K, and half-marathon distances. It is centered on Veterans Day gratitude, allowing participants to run or walk without the pressure of a competitive race. Waves are capped and may sell out; a waitlist and virtual option are available when in-person spots are full. The event accommodates all paces and ages, with participants under 18 requiring a guardian. Timing is optional; runners may use an app to track and submit results online, or seek assistance from coordinators, as there are no timing chips. Participants can fundraise for a chosen charity, with all net proceeds directed to that cause. Included with registration are a running shirt for U.S. participants, a finisher medal, a towel or giveaway item, a digital training pack, online results, a completion certificate, and an invitation to local running clubs.

The Diwali Fun Run + Festival is an evening event at the Community Center on Old Canyon Road in Fremont, California. It offers timed 5K and 10K races, plus a Festival Only option. The event is designed for families, runners, and walkers, with registration open to a wide age range, from young children to older adults. The races are straightforward: select the 5K or 10K, complete it by running or walking, and receive a medal upon finishing. The festival includes catered food, arts and crafts, a selfie station, music for dancing, light-up bracelets, and complimentary henna tattoos for attendees. Those not racing can still enjoy the food and activities. The event also supports Purrific Rescue through fundraising.

The Midway Shelter Winter Run / Walk is a community running event in Alameda, California, offering 5k, 10k, and Kids Run distances. The start line is at 215 Adelphian Way. This event is designed for runners, walkers, and families, not exclusively competitive racers. The event raises funds for the Alameda Midway Shelter, which supports abused and homeless women and children. The race options are straightforward: adults can select either a 5k or 10k, and children have their own dedicated run on the same day.