| Date | 10 – 15 October 2018 | 
|---|---|
| Status | YOG | 
| Location | America Pavilion, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | 
| Participants | 34 from 34 countries | 
| Pos | Nr | Gymnast | NOC | Qualifying | Final | |||
|---|---|---|---|---|---|---|---|---|
| 1 | 307 | Tang Xijing |  CHN | 13.800 (1) | 14.033 (1) | Gold | ||
| 2 | 329 | Kseniya Klimenko |  RUS | 13.100 (3) | 13.533 (2) | Silver | ||
| 3 | 313 | Amelie Morgan |  GBR | 12.233 (8) | 13.033 (3) | Bronze | ||
| 4 | 319 | Giorgia Villa |  ITA | 12.333 (7) | 12.966 (4) | |||
| 5 | 318 | Emma Slevin |  IRL | 12.433 (4) | 11.800 (5) | |||
| 6 | 334 | Anastasiya Bachynska |  UKR | 13.400 (2) | 11.800 (6) | |||
| 7 | 327 | Ana-Maria Puiu |  ROU | 12.366 (6) | 11.066 (7) | |||
| 8 | 306 | Emma Spence |  CAN | 12.433 (5) | 10.366 (8) | |||
| 9 | 314 | Lisa Zimmermann |  GER | 12.100 (9) | – | |||
| 10 | 311 | Ada Hautala |  FIN | 12.033 (10) | – | |||
| 11 | 317 | Csenge Bácskay |  HUN | 12.033 (11) | – | |||
| 12 | 304 | Aliaksandra Varabyova |  BLR | 12.033 (12) | – | |||
| 13 | 332 | Tonya Paulsson |  SWE | 11.800 (13) | – | |||
| 14 | 303 | Kate Sayer |  AUS | 11.766 (14) | – | |||
| 15 | 316 | Karla Pérez |  GUA | 11.566 (15) | – | |||
| 16 | 308 | Camila Montoya |  CRC | 11.466 (16) | – | |||
| 17 | 305 | Laura Leonardo |  BRA | 11.366 (17) | – | |||
| 18 | 331 | Milka Elpitiya |  SRI | 11.333 (18) | – | |||
| 19 | 323 | Zarith Khalid |  MAS | 11.300 (19) | – | |||
| 20 | 309 | Zeina Ibrahim Sharaf |  EGY | 11.266 (20) | – | |||
| 21 | 320 | Chiharu Yamada |  JPN | 11.166 (21) | – | |||
| 22 | 310 | Alba Petisco |  ESP | 10.833 (22) | – | |||
| 23 | 321 | Lee Yun-Seo |  KOR | 10.800 (23) | – | |||
| 24 | 330 | Tamara Ong |  SGP | 10.733 (24) | – | |||
| 25 | 335 | Indira Ulmasova |  UZB | 10.433 (25) | – | |||
| 26 | 326 | Kryxia Alicea |  PUR | 10.366 (26) | – | |||
| 27 | 301 | Sofia Nair |  ALG | 10.300 (27) | – | |||
| 28 | 322 | Eglė Stalinkevičiūtė |  LTU | 10.300 (28) | – | |||
| 29 | 315 | Elvira Katsali |  GRE | 10.133 (29) | – | |||
| 30 | 328 | Lisa Conradie |  RSA | 9.900 (30) | – | |||
| 31 | 333 | Nazlı Savranbaşı |  TUR | 9.833 (31) | – | |||
| 32 | 325 | Beatriz Cardoso |  POR | 9.766 (32) | – | |||
| 33 | 336 | Phạm Như Phương |  VIE | 9.700 (33) | – | |||
| 34 | 324 | Paulina Vargas |  MEX | 9.266 (34) | – | |||
| 302 | Olivia Araújo |  ARG | – ( | – | 
Top 8 gymnasts advance to final round.
| Pos | Gymnast | NOC | Points | D Score | E Score | Penalty | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Tang Xijing |  CHN | 13.800 | 6.2 | 7.600 | 0.0 | |||
| 2 | Anastasiya Bachynska |  UKR | 13.400 | 5.7 | 7.700 | 0.0 | |||
| 3 | Kseniya Klimenko |  RUS | 13.100 | 5.5 | 7.600 | 0.0 | |||
| 4 | Emma Slevin |  IRL | 12.433 | 4.6 | 7.833 | 0.0 | |||
| 5 | Emma Spence |  CAN | 12.433 | 4.8 | 7.633 | 0.0 | |||
| 6 | Ana-Maria Puiu |  ROU | 12.366 | 4.7 | 7.666 | 0.0 | |||
| 7 | Giorgia Villa |  ITA | 12.333 | 5.2 | 7.133 | 0.0 | |||
| 8 | Amelie Morgan |  GBR | 12.233 | 5.2 | 7.033 | 0.0 | |||
| 9 | Lisa Zimmermann |  GER | 12.100 | 4.9 | 7.200 | 0.0 | |||
| 10 | Ada Hautala |  FIN | 12.033 | 4.6 | 7.433 | 0.0 | |||
| 11 | Csenge Bácskay |  HUN | 12.033 | 4.8 | 7.233 | 0.0 | |||
| 12 | Aliaksandra Varabyova |  BLR | 12.033 | 4.9 | 7.133 | 0.0 | |||
| 13 | Tonya Paulsson |  SWE | 11.800 | 4.1 | 7.700 | 0.0 | |||
| 14 | Kate Sayer |  AUS | 11.766 | 4.7 | 7.066 | 0.0 | |||
| 15 | Karla Pérez |  GUA | 11.566 | 5.1 | 6.466 | 0.0 | |||
| 16 | Camila Montoya |  CRC | 11.466 | 4.7 | 6.766 | 0.0 | |||
| 17 | Laura Leonardo |  BRA | 11.366 | 4.2 | 7.166 | 0.0 | |||
| 18 | Milka Elpitiya |  SRI | 11.333 | 4.9 | 6.433 | 0.0 | |||
| 19 | Zarith Khalid |  MAS | 11.300 | 4.3 | 7.000 | 0.0 | |||
| 20 | Zeina Ibrahim Sharaf |  EGY | 11.266 | 4.5 | 6.766 | 0.0 | |||
| 21 | Chiharu Yamada |  JPN | 11.166 | 4.7 | 6.466 | 0.0 | |||
| 22 | Alba Petisco |  ESP | 10.833 | 5.0 | 5.833 | 0.0 | |||
| 23 | Lee Yun-Seo |  KOR | 10.800 | 5.1 | 5.700 | 0.0 | |||
| 24 | Tamara Ong |  SGP | 10.733 | 3.9 | 6.833 | 0.0 | |||
| 25 | Indira Ulmasova |  UZB | 10.433 | 3.9 | 6.633 | 0.1 | |||
| 26 | Kryxia Alicea |  PUR | 10.366 | 3.9 | 6.466 | 0.0 | |||
| 27 | Sofia Nair |  ALG | 10.300 | 4.2 | 6.100 | 0.0 | |||
| 28 | Eglė Stalinkevičiūtė |  LTU | 10.300 | 4.8 | 5.500 | 0.0 | |||
| 29 | Elvira Katsali |  GRE | 10.133 | 4.3 | 5.833 | 0.0 | |||
| 30 | Lisa Conradie |  RSA | 9.900 | 3.9 | 6.000 | 0.0 | |||
| 31 | Nazlı Savranbaşı |  TUR | 9.833 | 5.0 | 4.833 | 0.0 | |||
| 32 | Beatriz Cardoso |  POR | 9.766 | 4.8 | 4.966 | 0.0 | |||
| 33 | Phạm Như Phương |  VIE | 9.700 | 4.8 | 5.000 | 0.1 | |||
| 34 | Paulina Vargas |  MEX | 9.266 | 4.2 | 5.066 | 0.0 | |||
| Olivia Araújo |  ARG | – | – | – | – | 
| Pos | Gymnast | NOC | Points | D Score | E Score | Penalty | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Tang Xijing |  CHN | 14.033 | 5.9 | 8.133 | 0.0 | |||
| 2 | Kseniya Klimenko |  RUS | 13.533 | 5.7 | 7.833 | 0.0 | |||
| 3 | Amelie Morgan |  GBR | 13.033 | 5.5 | 7.533 | 0.0 | |||
| 4 | Giorgia Villa |  ITA | 12.966 | 5.2 | 7.766 | 0.0 | |||
| 5 | Emma Slevin |  IRL | 11.800 | 4.6 | 7.200 | 0.0 | |||
| 6 | Anastasiya Bachynska |  UKR | 11.800 | 5.7 | 6.100 | 0.0 | |||
| 7 | Ana-Maria Puiu |  ROU | 11.066 | 4.5 | 6.566 | 0.0 | |||
| 8 | Emma Spence |  CAN | 10.366 | 4.8 | 5.566 | 0.0 |