A Rio rematch is set to headline the women's 400m as Shaunae Miller-Uibo and Allyson Felix both earned their spots into the final round Monday at the IAAF World Championships in London. 

Miller-Uibo, who dove to win gold against Felix at the 2016 Olympic Games last summer, won her heat of the 400m semifinal in 50.36. Felix cruised to a runner-up finish in heat two for an automatic spot. Heat winner Salwa Eid Naser of Bahrain surprised the crowd when she beat Felix in 50.08. 

Phyllis Francis of Team USA also earned her place in the final after winning heat three in 50.37. Unfortunately, Quanera Hayes missed the opportunity when she finished third in heat one. 

Full list of final qualifiers:

POS	ATHLETE	COUNTRY	RESULTS
1	Salwa Eid NASER	BRN	50.08 Q NR
2	Allyson FELIX	USA	50.12 Q
3	Shaunae MILLER-UIBO	BAH	50.36 Q
4	Phyllis FRANCIS	USA	50.37 Q
5	Stephenie Ann MCPHERSON	JAM	50.56 Q SB
6	Kabange MUPOPO	ZAM	50.60 Q SB
7	Novlene WILLIAMS-MILLS	JAM	50.67 q
8	Shericka JACKSON	JAM	50.70 q