She booked her place in the women’s showdown at the US Open with a straight sets win over 17th seed Maria Sakkari.
Canadian Leylah Fernandez now stands between the 18-year-old and one of the most incredible sporting success stories.
She first hit mainstream attention as a wildcard at Wimbledon, reaching the fourth round, before having to leave due to breathing difficulties.
18-year-old Raducanu is the youngest to reach a grand slam final since Maria Sharapova won Wimbledon in 2004 when she was 17.
Reporter Martha Kelner is in New York and says it was a powerful display from Raducanu: