The women's 200m heats took place earlier today, and while one doubler from the 100m in Dafne Schippers excelled with the fastest time of the day, the 100m world champion Tori Bowie withdrew from the longer event -- possibly due to injury after diving at the line in her 100m race two days ago at the IAAF World Championships in London.

Her spot in the 200m heats was uncertain even before she won the 100m, as she had gone on the record after USAs saying she "absolutely did not want" to double.

Two other non-starters were medal hope Michelle-Lee Ahye and German athlete Laura Muller. Muller's DNS was speculated to be due to the same type of food poisoning that 400m men's medal favorite Isaac Makwala contracted that forced him to DNS in the 200m.

The other two Americans and most of the big names (aside from the non-starters) all qualified for the semis safely.

Here are the semifinal qualifiers:

POS	HEAT	ATHLETE	RESULTS	WIND
1	1	Dafne SCHIPPERS	22.63 Q	0.5
2	4	Shaunae MILLER-UIBO	22.69 Q	-0.1
3	6	Marie-Josée TA LOU	22.70 Q	0.1
4	5	Dina ASHER-SMITH	22.73 Q SB	-0.4
5	2	Kimberlyn DUNCAN	22.74 Q	-0.6
6	2	Mujinga KAMBUNDJI	22.86 Q	-0.6
7	5	Crystal EMMANUEL	22.87 Q	-0.4
8	3	Deajah STEVENS	22.90 Q	0.1
9	4	Simone FACEY	22.98 Q	-0.1
9	1	Tynia GAITHER	22.98 Q	0.5
11	7	Rebekka HAASE	22.99 Q	0.5
12	3	Ivet LALOVA-COLLIO	23.08 Q	0.1
13	6	Sarah ATCHO	23.09 Q	0.1
14	1	Maria BELIMPASAKI	23.16 Q	0.5
15	6	Anthonique STRACHAN	23.23 Q	0.1
16	4	Edidiong Ofonime ODIONG	23.24 Q	-0.1
17	2	Vitoria Cristina ROSA	23.26 Q	-0.6
18	3	Sashalee FORBES	23.26 Q	0.1
19	1	Bianca WILLIAMS	23.30 q	0.5
20	7	Rosangela SANTOS	23.34 Q	0.5
21	2	Justine PALFRAMAN	23.35 q	-0.6
22	1	Jodean WILLIAMS	23.38 q	0.5
23	7	Semoy HACKETT	23.50 Q	0.5
24	5	Estelle RAFFAI	23.72 Q	-0.4