| Date | 9 – 13 October 2018 | 
|---|---|
| Status | YOG | 
| Location | America Pavilion, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | 
| Participants | 32 from 32 countries | 
| Pos | Nr | Gymnast | NOC | Qualifying | Final | |||
|---|---|---|---|---|---|---|---|---|
| 1 | 329 | Kseniya Klimenko |  RUS | 13.266 (5) | 14.266 (1) | Gold | ||
| 2 | 319 | Giorgia Villa |  ITA | 14.100 (1) | 14.166 (2) | Silver | ||
| 3 | 307 | Tang Xijing |  CHN | 13.333 (3) | 13.900 (3) | Bronze | ||
| 4 | 313 | Amelie Morgan |  GBR | 13.300 (4) | 13.400 (4) | |||
| 5 | 321 | Lee Yun-Seo |  KOR | 12.933 (6) | 13.166 (5) | |||
| 6 | 334 | Anastasiya Bachynska |  UKR | 13.466 (2) | 13.133 (6) | |||
| 7 | 332 | Tonya Paulsson |  SWE | 12.733 (8) | 12.800 (7) | |||
| 8 | 318 | Emma Slevin |  IRL | 12.833 (7) | 12.600 (8) | |||
| 9 | 314 | Lisa Zimmermann |  GER | 12.600 (9) | – | |||
| 10 | 303 | Kate Sayer |  AUS | 12.200 (10) | – | |||
| 11 | 306 | Emma Spence |  CAN | 12.133 (11) | – | |||
| 12 | 328 | Lisa Conradie |  RSA | 12.100 (12) | – | |||
| 13 | 324 | Paulina Vargas |  MEX | 11.966 (13) | – | |||
| 14 | 310 | Alba Petisco |  ESP | 11.933 (14) | – | |||
| 15 | 305 | Laura Leonardo |  BRA | 11.633 (15) | – | |||
| 16 | 322 | Eglė Stalinkevičiūtė |  LTU | 11.566 (16) | – | |||
| 17 | 311 | Ada Hautala |  FIN | 11.533 (17) | – | |||
| 18 | 336 | Phạm Như Phương |  VIE | 11.466 (18) | – | |||
| 19 | 308 | Camila Montoya |  CRC | 11.466 (19) | – | |||
| 20 | 327 | Ana-Maria Puiu |  ROU | 11.400 (20) | – | |||
| 21 | 325 | Beatriz Cardoso |  POR | 11.100 (21) | – | |||
| 22 | 309 | Zeina Ibrahim Sharaf |  EGY | 10.966 (22) | – | |||
| 23 | 330 | Tamara Ong |  SGP | 10.500 (23) | – | |||
| 24 | 317 | Csenge Bácskay |  HUN | 10.433 (24) | – | |||
| 25 | 333 | Nazlı Savranbaşı |  TUR | 10.266 (25) | – | |||
| 26 | 315 | Elvira Katsali |  GRE | 10.133 (26) | – | |||
| 27 | 323 | Zarith Khalid |  MAS | 10.100 (27) | – | |||
| 28 | 304 | Aliaksandra Varabyova |  BLR | 9.966 (28) | – | |||
| 29 | 320 | Chiharu Yamada |  JPN | 9.733 (29) | – | |||
| 30 | 335 | Indira Ulmasova |  UZB | 9.000 (30) | – | |||
| 31 | 331 | Milka Elpitiya |  SRI | 8.966 (31) | – | |||
| 32 | 316 | Karla Pérez |  GUA | 8.600 (32) | – | |||
| 326 | Kryxia Alicea |  PUR | – ( | – | ||||
| 302 | Olivia Araújo |  ARG | – ( | – | ||||
| 301 | Sofia Nair |  ALG | – ( | – | 
Top 8 gymnasts advance to final round.
| Pos | Gymnast | NOC | Points | D Score | E Score | Penalty | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Giorgia Villa |  ITA | 14.100 | 5.9 | 8.200 | 0.0 | |||
| 2 | Anastasiya Bachynska |  UKR | 13.466 | 5.3 | 8.166 | 0.0 | |||
| 3 | Tang Xijing |  CHN | 13.333 | 5.6 | 7.733 | 0.0 | |||
| 4 | Amelie Morgan |  GBR | 13.300 | 5.1 | 8.200 | 0.0 | |||
| 5 | Kseniya Klimenko |  RUS | 13.266 | 5.7 | 7.566 | 0.0 | |||
| 6 | Lee Yun-Seo |  KOR | 12.933 | 4.8 | 8.133 | 0.0 | |||
| 7 | Emma Slevin |  IRL | 12.833 | 4.8 | 8.033 | 0.0 | |||
| 8 | Tonya Paulsson |  SWE | 12.733 | 4.5 | 8.233 | 0.0 | |||
| 9 | Lisa Zimmermann |  GER | 12.600 | 4.7 | 7.900 | 0.0 | |||
| 10 | Kate Sayer |  AUS | 12.200 | 4.9 | 7.300 | 0.0 | |||
| 11 | Emma Spence |  CAN | 12.133 | 5.2 | 6.933 | 0.0 | |||
| 12 | Lisa Conradie |  RSA | 12.100 | 4.3 | 7.800 | 0.0 | |||
| 13 | Paulina Vargas |  MEX | 11.966 | 4.6 | 7.366 | 0.0 | |||
| 14 | Alba Petisco |  ESP | 11.933 | 4.3 | 7.633 | 0.0 | |||
| 15 | Laura Leonardo |  BRA | 11.633 | 4.3 | 7.333 | 0.0 | |||
| 16 | Eglė Stalinkevičiūtė |  LTU | 11.566 | 3.8 | 7.766 | 0.0 | |||
| 17 | Ada Hautala |  FIN | 11.533 | 4.3 | 7.233 | 0.0 | |||
| 18 | Phạm Như Phương |  VIE | 11.466 | 3.1 | 8.366 | 0.0 | |||
| 19 | Camila Montoya |  CRC | 11.466 | 4.2 | 7.266 | 0.0 | |||
| 20 | Ana-Maria Puiu |  ROU | 11.400 | 4.5 | 6.900 | 0.0 | |||
| 21 | Beatriz Cardoso |  POR | 11.100 | 3.5 | 7.600 | 0.0 | |||
| 22 | Zeina Ibrahim Sharaf |  EGY | 10.966 | 4.5 | 6.466 | 0.0 | |||
| 23 | Tamara Ong |  SGP | 10.500 | 3.7 | 6.800 | 0.0 | |||
| 24 | Csenge Bácskay |  HUN | 10.433 | 4.5 | 5.933 | 0.0 | |||
| 25 | Nazlı Savranbaşı |  TUR | 10.266 | 3.5 | 6.766 | 0.0 | |||
| 26 | Elvira Katsali |  GRE | 10.133 | 2.4 | 7.733 | 0.0 | |||
| 27 | Zarith Khalid |  MAS | 10.100 | 3.1 | 7.000 | 0.0 | |||
| 28 | Aliaksandra Varabyova |  BLR | 9.966 | 4.3 | 5.666 | 0.0 | |||
| 29 | Chiharu Yamada |  JPN | 9.733 | 4.7 | 5.033 | 0.0 | |||
| 30 | Indira Ulmasova |  UZB | 9.000 | 3.5 | 5.500 | 0.0 | |||
| 31 | Milka Elpitiya |  SRI | 8.966 | 4.1 | 4.866 | 0.0 | |||
| 32 | Karla Pérez |  GUA | 8.600 | 2.3 | 6.300 | 0.0 | |||
| Kryxia Alicea |  PUR | – | – | – | – | ||||
| Olivia Araújo |  ARG | – | – | – | – | ||||
| Sofia Nair |  ALG | – | – | – | – | 
| Pos | Gymnast | NOC | Points | D Score | E Score | Penalty | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kseniya Klimenko |  RUS | 14.266 | 5.9 | 8.366 | 0.0 | |||
| 2 | Giorgia Villa |  ITA | 14.166 | 6.0 | 8.166 | 0.0 | |||
| 3 | Tang Xijing |  CHN | 13.900 | 6.0 | 7.900 | 0.0 | |||
| 4 | Amelie Morgan |  GBR | 13.400 | 5.1 | 8.300 | 0.0 | |||
| 5 | Lee Yun-Seo |  KOR | 13.166 | 5.1 | 8.066 | 0.0 | |||
| 6 | Anastasiya Bachynska |  UKR | 13.133 | 5.2 | 7.933 | 0.0 | |||
| 7 | Tonya Paulsson |  SWE | 12.800 | 4.6 | 8.200 | 0.0 | |||
| 8 | Emma Slevin |  IRL | 12.600 | 4.6 | 8.000 | 0.0 |