They never have the Rose Parade on Sunday because it'll interfere with getting to church. Times change -- now, apparently, the city has no problem shutting down traffic in an even LARGER area on a Sunday beginning at 5 AM for the Pasadena Marathon!
Above is the map of street closures for the Pasadena Marathon on Sun., May 15, so adjust your travel accordingly. Check out www.pasadenamarathon.org for more information (and helpfully has routes to churches).