Fixer, you gotta list YOURS too (and mine):

Tues/Thurs: Rose Bowl, only from March-October around 6pm..sometimes earlier, sometimes later, I don't know the pattern. Usually 10 laps, about 30 miles, in 1 hour. This is as fast as it gets! I don't do this regularly, just about once or twice a month. I've never been to a Rose Bowl ride where there hasn't been a crash.

Saturday: Montrose Ride, year-round. Starts at Descanso Gardens in La Canada, or Trader Joes in S. Pasadena. 30-50 miles, depending on where you start, or which route you take (short or long). Does not regroup.

Saturday: Simi Valley Ride. From November to March. Option up to 70 miles. Regroups. Can get pretty big. A bit more unforgiving than Montrose. Meets at Los Angeles and Keuhner in Simi Valley around 8am.

Sundays: Griffith Park/La Tuna Canyon Loop. Fixer, you know more about this than I do. I've never done it.

I've also done some of the La Grange rides too, but it's kinda far away for me.