Gare di Half Marathon vicino a Walnut Creek

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.

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.

La Halloween Trick or Trot Run è una gara di Halloween per piccoli gruppi a Crissy Field a San Francisco, con opzioni di 5K, 10K, half marathon e una 1-mile Family Fun Run. Le partenze sono a ondate e iniziano al mattino, e ogni ondata ha un numero massimo di partecipanti, quindi le iscrizioni potrebbero chiudere una volta che un'ondata è piena. È pensata per runner e camminatori di tutti i ritmi, e i partecipanti sotto i 18 anni sono ammessi se accompagnati da un adulto. I dettagli del percorso li danno ai partecipanti prima del giorno della gara. L'organizzazione è semplice: niente ritiro pacco gara, i pettorali li danno il giorno stesso, e l'eventuale merchandise lo spediscono a casa agli iscritti negli U.S. Il cronometraggio è facoltativo, senza chip; i runner possono monitorarsi da soli con un'app e caricare il risultato per la pubblicazione online e un certificato. Chi arriva al traguardo riceve una medaglia, un asciugamano o qualcosa di simile, e caramelle di Halloween dopo la corsa. Chi non è riuscito a iscriversi può mettersi in lista d'attesa oppure scegliere l'opzione virtuale per fare la distanza da remoto.

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.

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.

The Golden Gate Trail Run is a winter trail race in San Francisco offering distances for various runners, from an 8K and half marathon to marathon, 50K, and longer ultra options in the Spartan Trail version. A free 50-yard dash for children aged six and under is also available, showing the event caters to more than just ultrarunners. The running surface is soft trail, the route is hilly, and typical conditions are mild, around 64°F. The course takes runners across the Golden Gate Bridge and into the Marin Headlands, with views over the Pacific Coast, Tiburon, San Francisco, and the bridge. The average altitude is low at about 426 feet, but the Headlands provide significant climbing and exposed coastal trail running, distinct from a flat city route. Volunteers can earn credits toward other U.S. Spartan events, and published results are available for several recent editions.

Bay Breeze begins and ends at San Leandro Marina Park, offering half marathon, 10K, and 5K races on Valentine’s Weekend. This Brazen Racing event, situated on the east side of San Francisco Bay, features a mostly flat bayside trail adjacent to the water. The course suits runners aiming for a fast time, and it welcomes walkers at all distances, including a dedicated Hiker Division. The course traces the shoreline near the marina, providing open views of the bay toward San Francisco and long sections with the water close by. Organizers describe it as a "breeze" relative to Brazen’s steeper Bay Area races, aligning the name with its character. The event has been held for over ten years, attracting more than a thousand finishers across its distances, and has returned to San Leandro Marina Park after previous editions were held in Fremont.