I prefer to ride solo or in a very small group. I have done one group double century with the Los Angeles Wheelmen, but we were so spread out it doesn't count as a group ride. All of my centuries have been w/ one, two, or possibly three other riders.

My rides were uphill both ways. Seriously, my toughest century was my first, w/ my cousin and one of my college pals. After fighting a headwind in first gear all the way from Santa Cruz to San Gregorio, we had a tough time going back over the hill to Los Altos.