Click here for 2019 Grand Slam Finishers

Click here to see results from prior years.

What is the GRAND SLAM mission?
The purpose of the Grand Slam is to encourage and then recognize cyclists dedicated to the Planet Ultra brand of events. We love our repeat customers; and want you to keep coming back. We also want you to spread your wings and experience other incredible events in California and beyond.

The Grand Slam Endurance Series Challenge extends beyond the borders of Planet Ultra, providing more opportunities in California and other western states, for you to earn the coveted GRAND SLAM jersey.


Complete four qualifying Planet Ultra events in a calendar year.

Complete two qualifying Planet Ultra events plus two “Other” events.

(Of course we’d love for you to do four!)

Camino Real Double Century

Solvang Double Century

Solvang Spring Tour (must ride every day, every mile)

Mulholland Challenge Double Century

Heartbreak Double Century

Eastern Sierra Double Century

Tour of Two Forests Double Century

Hoodoo 500 (solo or 2x relay teams only- nonstop or stage)

Hoodoo 300 (solo only – nonstop or stage)

Tour of Southern Utah (must ride every day, every mile)

Solvang Autumn Double Century (on hiatus in 2020)

King of the Mountains Century Challenge (must complete all 3 events)


Any California Triple Crown Double Century held on a date not in conflict with a Planet Ultra event.

In Arizona: 300K, 400K or 600K offered by Arizona Randonneurs

In California:  World Time Trial Championships (12 or 24 hour options only)

In Colorado:  Any or all of the Colorado Triple Crown events, including brevets.

In Nevada:  Silver State 508 (solo or 2x relay teams only)

In Oregon:  Race Across Oregon (solo or 2x relay teams only)

In Utah:  LOTOJA – Logan to Jackson – 200+ mile USAC sanctioned road race


**Proof of completion required. Submit results via email or snail mail to Planet Ultra. Over time, we will add to the list of included events. If you’d like to recommend an event, please feel free to email us.


How do we recognize Grand Slam Finishers?**

Each year, we recognize and honor our amazing, greatly appreciated, loyal repeat customers as follows:

We keep accurate records of every member of this elite squad on our website and we publicize them through our e-newsletter and social media. Grand Slam Endurance Series Official Finishers have serious bragging rights and we make it easy for any doubters to verify their claims!

We offer a stylish and very exclusive jersey that only Grand Slam cyclists are permitted to obtain and wear. We’ll have a new Grand Slam design every year. Grand Slam jerseys are only available by special order placed in November (of course we’ll remind you). We won’t inventory Grand Slam gear. If you’ve earned it, and you want it, you’ll place your order and we’ll have it made just for you!
All Grand Slam finishers receive a special gift of thanks at the end of the cycling season. If you’ve earned it, we’ll mail it to you.
All Grand Slam finishers will be entered into a drawing to win a FREE Planet Ultra single day event for the following season.
** For now, we’re not collecting results from other event organizers. If you completed the Grand Slam with non-Planet Ultra events and you wish to be recognized, you need to let us know no later than end of November.