Biegi Half Marathon w pobliżu Moraga

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.

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 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.

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.

Boundary Bay is a late-fall race series held at Boundary Bay Park, Centennial Beach in Delta, British Columbia, offering 5K, 10K, half marathon, marathon, and 4-person marathon relay distances. The marathon is presented as a final opportunity for runners aiming for a Boston qualifying time, featuring a straightforward course: a completely flat gravel oceanside trail with no elevation gain. All distances follow an out-and-back route along British Columbia's southern coast, allowing participants to run beside Boundary Bay instead of through city streets. The course offers views across the Salish Sea towards the San Juan Islands, with migratory birds present and ocean weather as the primary variable. The race supports Ronald McDonald House BC & Yukon. Organizers acknowledge the late-season timing by advising runners to dress warmly, bring dry clothes, and appreciate the clock-change weekend that may provide an extra hour of sleep.

The Golden Gate Half Marathon & 5K is a Sunday race in San Francisco with the bridge at the center of the day. Runners choose between a half marathon and a 5K, with the shorter distance open to both runners and walkers and aimed at a wide range of abilities. The half marathon crosses the Golden Gate Bridge twice, giving runners long looks at the bay, Alcatraz, and San Francisco from one of the city’s most famous landmarks. The event draws runners from around the world, uses the hashtag #RunTheBridge, and is tied to the Bay Area running community as much as to the bridge itself.

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.

Jingle All the Way: A Merry Christmas Run is a holiday race series in San Francisco offering 5K, 10K, and half-marathon distances. A Family 1 Mile Fun Run is also available for those not wanting to commit to longer distances, and a virtual run option exists for remote participation. The event is scheduled before Christmas celebrations, encouraging families and friends to gather. The theme focuses on Christmas values like spreading love, selfless giving, and enjoying time with others. The 5K, 10K, and half-marathon registrations include an eco-registration option for participants who prefer not to receive a shirt.

The Crystal Springs Trail Run begins at Huddart Park in Woodside, California, leading runners into the wooded paths surrounding King’s Mountain and Bear Gulch. This winter trail race offers distances from a 5-mile run to an ultramarathon, including a half marathon, 22 miles, a marathon, and a 50K. A free 50-yard dash is also available for children aged 6 and under. Established in 2006, the event does not offer prize money, fostering a community atmosphere rather than a professional competition. The course is predominantly unpaved, with approximately 95% of the route on dirt trails, featuring a total elevation gain of 4,810 feet. Participants will traverse redwood forests and areas dense with ferns. The organizers emphasize trail etiquette, requesting runners announce passes, remain on marked paths to avoid poison oak, and refrain from using headphones on single-track sections, road crossings, aid stations, and near the finish line. Bibs indicate each runner's chosen distance, and participants can change their race distance via email or during check-in.

Coyote Hills is a trail race at Coyote Hills Park in Fremont, California, offering half marathon, 10K, and 5K distances. While the park has "hills" in its name, the courses limit climbing, focusing on steady running and varied terrain rather than significant elevation gain. Walkers are welcome, contributing to a broader participant base than a runner-exclusive event. The routes follow the eastern San Francisco Bay shoreline, crossing dirt paths, paved sections, and wooden boardwalks through marshland. Runners will encounter rolling terrain and open bay vistas, with the low Coyote Hills serving as a landmark on the western edge of southern Alameda County. The park holds significant human history; Native peoples have inhabited this region for at least 12,900 to 13,500 years. The Tuibun Ohlone village site, over 2,000 years old, is accessible via naturalist-led programs. Participants also receive complimentary race photos, and sponsors help reduce entry fees.