Christine Day is a Jamaican sprinter who specializes in the 400 metres. She represented Jamaica at the 2012 Summer Olympics in the individual 400m and in the 4x400 metre relay. Day was eliminated in the semifinals of the individual 400m but she and teammates Rosemarie Whyte, Shericka Williams and Novlene Williams-Mills won bronze in the relay.

Novlene Hilaire Williams-Mills, is a retired Jamaican track and field athlete. She won the bronze medal in the 400 metres at the 2007 World Championships. She is also a three-time Olympic silver medallist in the 4×400 metres relay. In 2015 she won relay gold alongside her Jamaican teammates.