It looks like it will take some dial twisting, but you should be able to find reports in various spots. In 06' Sirius produced its own nightly one-hour roundup on ch. 123 in the early evening, but that was easy to do because the games were in Italy and the day's events were over by the time the show hit the air. I see nothing on the Web about any plans this time (and because the games are on the west coast, the major events on the schedule won't be happening until late evening in the east).
The obvious channels to try for news coverage of results inside regular programming would be CNN, Headline News, Fox and CBC1 (the CBC didn't win the event broadcast rights in Canada but will presumably have a team of reporters covering the Olympics as news). For the Beijing summer games, NBC spun off some of the actual events late at night and on weekends to CNBC. I can't tell if they have similar plans this time -- and if so, if the audio will be available on the CNBC channel.