Our District 21, Unit 500, and our Bridge Clubs are members of the American Contract Bridge League (ACBL). It is a wonderful resource for duplicate bridge players in the U.S.A., with information about Districts, Units, Clubs, Tournaments, masterpoints, and many other things.
The ACBL provides a Club Results system that allows game results to be uploaded to the internet. Any club that belongs to the ACBL, and uses this system, will have results displayed on the ACBL website. A very nice feature is the ability to merge hand records with game results. Unit 500 began using ACBL Club Results Nov. 11, 2013. If you look up Clubs in Castro Valley, Hayward, or San Leandro, California, you will see our results listed.
The North American Bridge Championships (NABC) are ACBL National Tournaments held three times a year. San Francisco will host an NABC tournament November 28 - December 8, 2019.
The ACBL maintains a searchable database listing schedules and results for Sectional and Regional Tournaments all over the country.