Complex sentence: The Wildflower Triathlon is a triathlon (swim-bike-run race) held at Lake San Antonio in Central California since 1983, the first winner being legendary Dean "The Machine" Harper.
Split into simpler sentences: The Wildflower Triathlon is a triathlon (swim-bike-run race) held at Lake San Antonio in Central California since 1983. The first winner was legendary Dean "The Machine" Harper.