San Jose, CA
New Year's One Day
New Year's One Day is a timed ultra in San Jose, California, run on a flat, paved loop of about one mile around Cottonwood Lake in Hellyer County Park.1 Runners choose a 6-hour, 12-hour or 24-hour event, solo or as a team, or a 100-mile race with a 28-hour limit, and every event starts at 9:00 a.m. on December 31.12 There is an aid station every mile, and walking is welcome.12
- Date
- First start9:00 AM PST
- LocationHellyer County Park (Buena Vista Pavilion), San Jose, CA 95111
- DistancesUltra
- SurfaceRoad
- SwagFleece Hoodie · T-Shirt
Bib Scout Report
| Event | Distance | Start | Current fee | Next increase |
|---|---|---|---|---|
| 24 hour Solo | Ultra | 9:00 AM PST | $195 | $205 on |
| 100 Mile | Ultra | 9:00 AM PST | $195 | $205 on |
| 12 hour Solo | Ultra | 9:00 AM PST | $110 | $120 on |
| 6 hour Solo | Ultra | 9:00 AM PST | $90 | $100 on |
| 24 hour Team | Ultra | 9:00 AM PST | $205 | $215 on |
| 12 hour Team | Ultra | 9:00 AM PST | $120 | $130 on |
| 6 hour Team | Ultra | 9:00 AM PST | $100 | $110 on |
Scouted from the official RunSignup listing. Fees shown exclude processing fees.Merit badges are detected from the organizer’s description. Dates, courses, and prices can change — confirm on the registration page.
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New Year's One Day race guide
Facts checked against the sources listed below. Race-week details describe the 2026 edition.
| Organizer | Coastal Trail Runs.3 |
|---|---|
| Venue | Hellyer County Park (Buena Vista Pavilion), 985 Hellyer Ave, San Jose, CA 95111.1 |
| Course | A loop around Cottonwood Lake on an asphalt path, described as relatively flat.1 |
| Lap length | Listed as 1.0 mile in the summary and 1.03 miles in the course notes.1 |
| Certification | USATF course certification CA23033TEB.1 |
| Events | 6-hour, 12-hour and 24-hour, solo or team, plus a 100-mile race.12 |
| Start | 9:00 a.m. Pacific for every event.2 |
| 100-mile time limit | 28 hours.2 |
| Aid stations | Every mile. The event is cupless, so bring your own container.1 |
| Parking | $6 per vehicle, exact change requested.1 |
| Pacers | Not allowed.1 |
The course
The course is a loop around Cottonwood Lake in Hellyer County Park, on an asphalt path that the organizers describe as relatively flat.1 The race summary calls it a 1.0 mile loop, while the course notes on the same page give each lap as 1.03 miles.1 It carries USATF course certification CA23033TEB.1
The course is not lit, and the organizers recommend having a flashlight for the night hours.1 Portable toilets are next to the course near the start and finish area.1
Every lap is recorded by a timing chip in the bib tag, and live lap splits are shown on a screen at the start and finish.1
How the events work
The 6-hour, 12-hour and 24-hour events are fixed-time: you run or walk as far as you can, or as little as you want, before the clock runs out.2 Only complete laps count. A runner has to finish the full lap inside the time limit to receive credit for it.1
The 100-mile event is treated as a race over that distance and has a 28-hour time limit.2 Once the events have started, nobody can switch from one to another.1
All of them start at 9:00 a.m. Pacific.2
Teams
Teams have two to four members and share one bib on a race belt. Each member has to complete at least one lap.1 The bib can only be handed to a teammate at the timing mat at the start and finish.1
The top three teams receive medals, and every team gets a custom coaster with its name and distance.1
Aid, crew and what you can set up
There is a fully stocked aid station every mile, with fresh fruit, salty snacks, candy, water and Skratch electrolyte drink.1 Hot soup and pizza are served in the evening.1
The event is cupless, and there are no pre-filled cups at the aid stations, so runners need their own container.1
Runners can set up tents, tables, chairs and coolers along the course.1 Pacing is not allowed.1
Check-in and parking
Check-in opens at 8:00 a.m. on race day at the Buena Vista Pavilion in Hellyer County Park, and runners are asked to arrive 30 minutes before their event to collect a bib and shirt.1
Parking is $6 per vehicle, and the organizers ask for exact change to speed up entry.1
Buckles, medals and awards
In the 24-hour event, runners who complete 60 laps earn the 100K belt buckle and those who complete 97 laps earn the 100+ Miles buckle.1 Finishers of the 100-mile race receive a finisher's medal and a belt buckle.1
All other participants receive a finisher's medal and a custom coaster.1 Award medals go to the first woman and first man overall and to the top three in each age group.1
Solo runners in the 24-hour and 12-hour events are given a fleece hoodie or equivalent at check-in, and other categories get a technical tee.1 To guarantee a hoodie, the organizers ask runners to register a month ahead.1
Award ceremonies are held at the park at 3:15 p.m. on December 31 for the 6-hour, 9:15 p.m. for the 12-hour, 9:15 a.m. on January 1 for the 24-hour, and 1:15 p.m. on January 1 for the 100-mile.1
Course records
The listing publishes course records for each event. The 24-hour marks are 139.5 miles for men, set in 2014, and 120.8 miles for women, set in 2019.1 The 12-hour records are 79.9 miles and 70.9 miles, and the 6-hour records are 51.1 miles and 43.7 miles.1
The 100-mile records, both set in 2024, are 13:28:49 for men and 25:12:18 for women.1
New Year's One Day FAQ
Where is New Year's One Day held?
At Hellyer County Park in San Jose, California, on a loop around Cottonwood Lake. Check-in is at the Buena Vista Pavilion, 985 Hellyer Ave.1
How long is the loop at New Year's One Day?
About one mile. The race summary says 1.0 mile and the course notes say each lap is 1.03 miles, on an asphalt path.1
What time does New Year's One Day start?
Every event starts at 9:00 a.m. Pacific on December 31.2
Is there a time limit for the 100-mile race?
Yes, 28 hours.2
Can I walk at New Year's One Day?
Yes. The fixed-time events are described as run or walk, as far as you can or as little as you want.2
Do partial laps count?
No. You have to complete the full lap inside your event's time limit to receive credit for it.1
How many laps do I need for a belt buckle?
In the 24-hour event, 60 laps earns the 100K buckle and 97 laps earns the 100+ Miles buckle. Finishers of the 100-mile race also receive a buckle.1
Are pacers allowed at New Year's One Day?
No. Pacing is not allowed. Runners can set up tents, tables, chairs and coolers along the course.1
How much is parking at Hellyer County Park?
$6 per vehicle. The organizers ask for exact change.1
Sources
- RunSignup: New Year's One Day listing (runsignup.com)
- RunSignup: New Year's One Day events (runsignup.com)
- Coastal Trail Runs (coastaltrailruns.com)
From the organizer
Start the New Year running as far as you can or as little as you want. Sign up individually or as a team! The course is a 1.0 mile loop around Cottonwood Lake in popular Hellyer Park. USATF course certification (CA23033TEB).
More in San Jose: all San Jose races