Sprint Hurdles:
Sprint Hurdles, High Hurdles, Long Hurdles, Shuttle Hurdle Relay, 220 Yard / 200 Meter Low Hurdles, 180 Yard Low Hurdles, and 42-Inch Tall Hurdles.
Sprint Hurdles and Long Hurdles: Current World Records: WMA website
Sprint Hurdles and Long Hurdles: Current American Records: USATF website
42-Inch Tall Hurdles Over Age-46:
220 Yard / 200 Meter Low Hurdles
Open Championships:
220 Yard Hurdles at the Open Outdoor National Championship: (Link)
Winners from Past Open Championships: (External Link: USATF Outdoor Champions)
120 Yard / 110 Meter Sprint Hurdle (High Hurdle) Open National Champions 1876 to Present: (External Link)