The indoor long hurdles is rarely offered during the indoor track season.
Jan 21, 2023: CJ Allen ran 48.88 in the indoor 400 meter hurdle race breaking the existing American Record of 49.78 by Reuben McCoy (49.78 in 2011). The current indoor record is 48.78 by Felix Sanchez (2012).
[Reference Jan 24, 2023, per: https://sports.yahoo.com/north-mason-alum-cj-allen-182624570.html ]
Various indoor long hurdle races on-line:
You Tube: https://www.youtube.com/watch?v=pYOV9zF2fRo
You Tube: https://www.youtube.com/watch?v=A6hl6w8JKWI
You Tube (2011): https://www.youtube.com/watch?v=HkypUwdiiTw
You Tube (Birmingham, UK; 2011): https://www.youtube.com/watch?v=IEFMi1iRoP0