First 4 in each heat (Q) and the next 4 fastest (q)

POS Rank Heat BIB ATHLETE COUNTRY RESULTS ms*
1 1 1 1984 Sydney MCLAUGHLIN-LEVRONE USAUSA 54.45 Q
2 1 4 1494 Amalie IUEL NORNOR 54.72 Q NR
3 1 3 1989 Dalilah MUHAMMAD USAUSA 54.87 Q
4 2 1 1689 Lea SPRUNGER SUISUI 54.98 Q SB
5 1 2 1841 Anna RYZHYKOVA UKRUKR 55.11 Q
6 2 4 373 Aminat JAMAL BRNBRN 55.13 Q PB
7 3 4 1125 Ayomide FOLORUNSO ITAITA 55.20 Q .192
8 3 1 1188 Shiann SALMON JAMJAM 55.20 Q PB .197
9 1 5 1178 Rushell CLAYTON JAMJAM 55.23 Q
10 4 4 2006 Ashley SPENCER USAUSA 55.28 Q
11 5 4 1433 Femke BOL NEDNED 55.32 q PB
12 2 2 594 Zuzana HEJNOVÁ CZECZE 55.33 Q
13 2 3 571 Zurian HECHAVARRÍA CUBCUB 55.36 Q
14 4 1 131 Vera Rudakova ANAANA 55.51 Q SB
15 2 5 421 Sage WATSON CANCAN 55.57 Q
16 6 4 255 Hanne CLAES BELBEL 55.68 q
17 3 2 866 Jessica TURNER GBRGBR 55.72 Q PB
18 4 2 1141 Yadisleidis PEDROSO ITAITA 55.78 Q SB
19 5 2 954 Carolina KRAFZIK GERGER 55.93 q
20 3 3 1555 Joanna LINKIEWICZ POLPOL 55.97 Q .961
21 3 5 856 Meghan BEESLEY GBRGBR 55.97 Q .965
22 5 1 178 Lauren BODEN AUSAUS 56.00 q
23 4 3 1514 Gianna WOODRUFF PANPAN 56.07 Q
24 6 2 1203 Ronda WHYTE JAMJAM 56.37 .362
25 4 5 193 Sarah CARLI AUSAUS 56.37 Q .367
26 7 2 541 Melissa GONZALEZ COLCOL 56.49
27 5 3 123 Valeriya Andreyeva ANAANA 56.79
28 5 5 1138 Linda OLIVIERI ITAITA 56.82
29 7 4 202 Sara Klein AUSAUS 56.97
30 8 4 1741 Yanique HAYE-SMITH TKSTKS 56.98
31 6 5 1649 Zenéy GELDENHUYS RSARSA 57.11
32 6 3 253 Paulien COUCKUYT BELBEL 57.15
33 7 5 232 Tia-Adana BELLE BARBAR 57.37
34 6 1 351 Jessica Moreira BRABRA 57.66
35 8 5 1385 Lamiae Lhabz MARMAR 58.44
36 7 1 1609 Mariam Mamdouh Farid QATQAT 1:09.49 PB
2 1957 Kori CARTER USAUSA DNF
3 614 Sara Slott PETERSEN DENDEN DQ
1 1506 Portia BING NZLNZL DQ
Legend

ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second