| Date | 17 August 2014 | 
|---|---|
| Status | YOG | 
| Location | Nanjing Olympic Sports Centre Natatorium, Nanjing Olympic Sports Centre, Jiangning, Nanjing | 
| Participants | 32 from 28 countries | 
| Pos | Swimmer | NOC | R1 | Final | |||
|---|---|---|---|---|---|---|---|
| 1 | Nicolangelo Di Fabio |  ITA | 1:50.08 (1 h5) | 1:48.45 (1) | Gold | ||
| 2 | Kyle Stolk |  NED | 1:50.32 (1 h4) | 1:48.59 (2) | Silver | ||
| 3 | Damian Wierling |  GER | 1:50.70 (2 h4) | 1:48.91 (3) | Bronze | ||
| 4 | Duncan Scott |  GBR | 1:51.23 (2 h3) | 1:49.73 (4) | |||
| 5 | Joshua Steyn |  RSA | 1:50.79 (1 h3) | 1:50.06 (5) | |||
| 6 | Ido Haber |  ISR | 1:50.84 (3 h5) | 1:50.41 (6) | |||
| 7 | Luiz Altamir |  BRA | 1:50.58 (2 h5) | 1:50.51 (7) | |||
| 8 | Patrick Mulcare |  USA | 1:51.33 (3 h3) | 1:50.57 (8) | |||
| 9 | Javier Acevedo |  CAN | 1:51.41 (4 h3) | – | |||
| 10 | Lim Ching Hwang |  MAS | 1:51.49 (4 h5) | – | |||
| 11 | Martyn Walton |  GBR | 1:51.73 (5 h3) | – | |||
| 12 | Henrik Christiansen |  NOR | 1:51.89 (3 h4) | – | |||
| 13 | Welson Sim |  MAS | 1:51.99 (4 h4) | – | |||
| 14 | Marc Vivas |  ESP | 1:52.31 (5 h4) | – | |||
| 15 | Matthew Abeysinghe |  SRI | 1:52.41 (6 h4) | – | |||
| 16 | Michael Mincham |  NZL | 1:52.42 (1 h2) | – | |||
| 17 | Marcelo Acosta |  ESA | 1:52.50 (2 h2) | – | |||
| 18 | Brent Szurdoki |  RSA | 1:52.59 (5 h5) | – | |||
| 19 | Wojciech Wojdak |  POL | 1:53.02 (6 h3) | – | |||
| 20 | Guido Buscaglia |  ARG | 1:53.20 (7 h3) | – | |||
| 21 | Khader Baqlah |  JOR | 1:53.28 (3 h2) | – | |||
| 22 | Alexis Borisavljevic |  BEL | 1:53.53 (8 h3) | – | |||
| 23 | Juan Marín |  ESP | 1:53.58 (6 h5) | – | |||
| 24 | Tanakrit Kittiya |  THA | 1:53.77 (7 h5) | – | |||
| 25 | Ricardo Vargas |  MEX | 1:54.18 (4 h2) | – | |||
| 26 | Petr Novák |  CZE | 1:54.74 (8 h5) | – | |||
| 27 | Mohamed Mehdi Lagili |  TUN | 1:54.81 (5 h2) | – | |||
| 28 | Anthony Selby |  BAR | 1:56.34 (6 h2) | – | |||
| 29 | André Farinha |  POR | 1:57.38 (7 h4) | – | |||
| 30 | Stefan Jankulovski |  MKD | 1:58.46 (1 h1) | – | |||
| 31 | Lorance Al-Sabee |  SYR | 2:00.07 (2 h1) | – | |||
| 32 | Noah Mascoll-Gomes |  ANT | 2:01.69 (3 h1) | – | |||
| Kyle Chalmers |  AUS | – (DNS h4) | – | 
Fastest 8 swimmers to final round.
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Stefan Jankulovski |  MKD | 1:58.46 | |||
| 2 | – | Lorance Al-Sabee |  SYR | 2:00.07 | |||
| 3 | – | Noah Mascoll-Gomes |  ANT | 2:01.69 | 
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Michael Mincham |  NZL | 1:52.42 | |||
| 2 | – | Marcelo Acosta |  ESA | 1:52.50 | |||
| 3 | – | Khader Baqlah |  JOR | 1:53.28 | |||
| 4 | – | Ricardo Vargas |  MEX | 1:54.18 | |||
| 5 | – | Mohamed Mehdi Lagili |  TUN | 1:54.81 | |||
| 6 | – | Anthony Selby |  BAR | 1:56.34 | 
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Joshua Steyn |  RSA | 1:50.79 | |||
| 2 | – | Duncan Scott |  GBR | 1:51.23 | |||
| 3 | – | Patrick Mulcare |  USA | 1:51.33 | |||
| 4 | – | Javier Acevedo |  CAN | 1:51.41 | |||
| 5 | – | Martyn Walton |  GBR | 1:51.73 | |||
| 6 | – | Wojciech Wojdak |  POL | 1:53.02 | |||
| 7 | – | Guido Buscaglia |  ARG | 1:53.20 | |||
| 8 | – | Alexis Borisavljevic |  BEL | 1:53.53 | 
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Kyle Stolk |  NED | 1:50.32 | |||
| 2 | – | Damian Wierling |  GER | 1:50.70 | |||
| 3 | – | Henrik Christiansen |  NOR | 1:51.89 | |||
| 4 | – | Welson Sim |  MAS | 1:51.99 | |||
| 5 | – | Marc Vivas |  ESP | 1:52.31 | |||
| 6 | – | Matthew Abeysinghe |  SRI | 1:52.41 | |||
| 7 | – | André Farinha |  POR | 1:57.38 | |||
| – | Kyle Chalmers |  AUS | – | 
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Nicolangelo Di Fabio |  ITA | 1:50.08 | |||
| 2 | – | Luiz Altamir |  BRA | 1:50.58 | |||
| 3 | – | Ido Haber |  ISR | 1:50.84 | |||
| 4 | – | Lim Ching Hwang |  MAS | 1:51.49 | |||
| 5 | – | Brent Szurdoki |  RSA | 1:52.59 | |||
| 6 | – | Juan Marín |  ESP | 1:53.58 | |||
| 7 | – | Tanakrit Kittiya |  THA | 1:53.77 | |||
| 8 | – | Petr Novák |  CZE | 1:54.74 | 
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Nicolangelo Di Fabio |  ITA | 1:48.45 | |||
| 2 | – | Kyle Stolk |  NED | 1:48.59 | |||
| 3 | – | Damian Wierling |  GER | 1:48.91 | |||
| 4 | – | Duncan Scott |  GBR | 1:49.73 | |||
| 5 | – | Joshua Steyn |  RSA | 1:50.06 | |||
| 6 | – | Ido Haber |  ISR | 1:50.41 | |||
| 7 | – | Luiz Altamir |  BRA | 1:50.51 | |||
| 8 | – | Patrick Mulcare |  USA | 1:50.57 |