Presented by the Stockton Bicycle Club

Tentatively Saturday May 4th, 2024

Lodi, California

Check back in early 2024 for registration.


The Stockton Bicycle Club invites you to the 43rd Delta Century, a Northern California classic - among the flattest and fastest 100 miles or 100 kilometers anywhere!

The date is tentatively Saturday May 4th, 2023, starting under the oaks at the lovely Jessie's Grove Winery, the oldest winery in San Joaquin County. Three routes are available, all completely flat and well supported with fully stocked rest stops, SAG vehicles, radio communications, detailed maps and route sheets, and a delicious post ride meal.

The Stockton Bicycle Club donates more than 80% of the net proceeds to a variety of worthy local and national charities.


The Delta Century includes three routes, a 100 mile, 66 mile, and a 26 mile route. There are no hills, and the only climbing is for bridges and levees. This makes for an ideal first century or organized ride. Traffic is very light, and there are no traffic signals.

The Quarter Century: 26 miles of vineyards with a fully stocked rest stop midway.

The Metric Century: A delightful 67 mile loop of vineyards, levee roads, rivers and sloughs, and a ride on the J-Mack Ferry!

The Full Century: 100 of the flattest miles around. The same loop as the Metric (including a ride on the J-Mack Ferry) with an added loop to the north.

The routes are available here at Ride with GPS. The ferry is not running on the day of the ride, so we will use a route that passes by the historic Grand Island Mansion. Check back just before the ride, and consult the route sheet and course markings on the day of the ride.


Pre-registration is now closed. We still have space available for same day registration. $75 for the century and metric century, and $55 for the 25 mile route.

  • Each rider must sign a waiver.
  • Each rider must wear an ANSI or US CPSC approved helmet. No helmet, no ride.
  • Riders must ride single file and obey all traffic laws.
  • Earphones, headphones, ear buds and similar devices are prohibited.
  • Each rider should carry a minimum of a spare tube, patch kit, bike pump or cartridge, cell phone, money, identification, water bottle.
  • Rider check-in opens at 6:00 a.m. All riders must be on the course by 9:00 a.m.
  • Course closes at 4:30 p.m. Riders still on the course will be asked to SAG to the finish. Riders who refuse must complete the ride on their own.
  • Post ride meal served 11:30 a.m. to 5:00 p.m.
  • NO REFUNDS! Delta Century takes place rain, shine, fog or wind. You may transfer your entry to another rider.

  • Hotels

    Lodi has many hotels and motels within 5 miles of the start. See Visit Lodi's website for a complete listing of hotels available in the area. We recommend 2 clusters of hotels along Highway 12, one near Interstate 5 and the other near highway 99.


    Questions? Contact Steven Neiner via email at:

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