The races start at 7 a.m. for adults, and 9 a.m. for kids, at the Devon Boathouse, 616 S.E. 16th. Call 552-4040 or visit oklahomariverevents.org.
Head to the Oklahoma River for the 2011 OKC Riversport Challenge on Saturday. The multisport race includes kayaking and running for youths and adults, and adds cycling for the kids.