| | Final 21:07 |  | time | gap | L | Ag | Rct | pts | 50m | 100m | 150m |  | 1. Leon Marchand |  France | 1:54.82 | ER | 4 | 21 | 0.68 | 978 | 24.94s | 53.60s | 1:26.54 |  | 2. Duncan Scott |  Great Britain | 1:55.95 | +1.13s | 5 | 26 | 0.70 | 950 | 25.19s | 54.50s | 1:27.83 |  | 3. Tom Dean |  Great Britain | 1:56.07 | +1.25s | 1 | 23 | 0.68 | 947 | 25.42s | 55.62s | 1:28.95 |  | 4. Shaine Casas |  United States | 1:56.35 | +1.53s | 8 | 23 | 0.63 | 940 | 24.37s | 54.08s | 1:27.69 |  | 5. Carson Foster |  United States | 1:56.43 | +1.61s | 3 | 21 | 0.67 | 938 | 24.73s | 53.27s | 1:27.87 |  | 6. Daiya Seto |  Japan | 1:56.70 | +1.88s | 7 | 29 | 0.62 | 932 | 25.06s | 55.01s | 1:28.39 |  | 7. Hugo Gonzalez |  Spain | 1:57.37 | +2.55s | 6 | 24 | 0.64 | 916 | 25.54s | 54.41s | 1:28.51 |  | 8. So Ogata |  Japan | 1:57.82 | +3.00s | 2 | 20 | 0.63 | 905 | 25.08s | 55.00s | 1:29.34 | 
 |
 | Semi-Finals - Wednesday, 26th July 21:32  |  | Best 8 times advanced to Final. | 
 | Semi 1 21:32 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Hugo Gonzalez |  Spain | 1:56.58 | +0.24s | 2 | 24 | 0.66 | 935 | 4. | 25.30s | 54.35s | 1:28.01 |  | 2. Daiya Seto |  Japan | 1:57.15 | +0.81s | 4 | 29 | 0.62 | 921 | 6. | 25.11s | 54.61s | 1:28.50 |  | 3. Tom Dean |  Great Britain | 1:57.18 | +0.84s | 3 | 23 | 0.67 | 920 | 7. | 25.71s | 55.82s | 1:29.66 |  | 4. Thomas Neill |  Australia | 1:57.51 | +1.17s | 6 | 21 | 0.67 | 913 | 10. | 25.46s | 55.05s | 1:29.66 |  | 5. Shun Wang |  China | 1:57.97 | +1.63s | 8 | 29 | 0.65 | 902 | 11. | 25.33s | 55.23s | 1:29.98 |  | 6. Finlay Knox |  Canada | 1:58.23 | +1.89s | 7 | 22 | 0.67 | 896 | 13. | 25.01s | 55.33s | 1:29.75 |  | 7. Jeremy Desplanches |  Switzerland | 1:58.29 | +1.95s | 5 | 28 | 0.62 | 895 | 14. | 25.44s | 55.90s | 1:29.60 |  | 8. Gabriel Lopes |  Portugal | 2:00.28 | +3.94s | 1 | 26 | 0.61 | 851 | 16. | 25.19s | 55.14s | 1:29.80 | 
 | Semi 2 21:39 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Leon Marchand |  France | 1:56.34 |  | 2 | 21 | 0.69 | 940 | 1. | 25.29s | 54.17s | 1:27.26 |  | 2. Duncan Scott |  Great Britain | 1:56.50 | +0.16s | 4 | 26 | 0.70 | 936 | 2. | 25.26s | 54.65s | 1:28.57 |  | 3. Carson Foster |  United States | 1:56.55 | +0.21s | 6 | 21 | 0.66 | 935 | 3. | 24.96s | 53.68s | 1:27.87 |  | 4. So Ogata |  Japan | 1:57.06 | +0.72s | 5 | 20 | 0.64 | 923 | 5. | 25.08s | 55.09s | 1:28.94 |  | 5. Shaine Casas |  United States | 1:57.23 | +0.89s | 7 | 23 | 0.64 | 919 | 8. | 24.62s | 54.30s | 1:28.21 |  | 6. Alberto Razzetti |  Italy | 1:57.39 | +1.05s | 1 | 24 | 0.65 | 915 | 9. | 24.88s | 55.35s | 1:28.97 |  | 7. Lewis Clareburt |  New Zealand | 1:58.01 | +1.67s | 3 | 24 | 0.72 | 901 | 12. | 25.22s | 55.09s | 1:30.06 |  | 8. Brendon Smith |  Australia | 1:59.35 | +3.01s | 8 | 23 | 0.71 | 871 | 15. | 25.65s | 55.51s | 1:30.94 | 
 |
 | Heats - Wednesday, 26th July 11:18  |  | Best 8 times advanced to Final. | 
 | Heat 6 11:37 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. So Ogata |  Japan | 1:57.88 | +0.12s | 6 | 20 | 0.65 | 904 | 3. | 25.35s | 55.06s | 1:29.13 |  | 2. Jeremy Desplanches |  Switzerland | 1:58.00 | +0.24s | 7 | 28 | 0.62 | 901 | 4. | 25.17s | 55.65s | 1:29.51 |  | 3. Tom Dean |  Great Britain | 1:58.20 | +0.44s | 3 | 23 | 0.70 | 897 | 6. | 25.84s | 56.18s | 1:30.36 |  | 4. Carson Foster |  United States | 1:58.24 | +0.48s | 5 | 21 | 0.69 | 896 | 7. | 24.96s | 54.13s | 1:28.46 |  | 5. Leon Marchand |  France | 1:58.38 | +0.62s | 4 | 21 | 0.67 | 893 | 9. | 25.22s | 54.53s | 1:29.07 |  | 6. Alberto Razzetti |  Italy | 1:58.74 | +0.98s | 2 | 24 | 0.65 | 884 | 13. | 25.32s | 56.13s | 1:29.85 |  | 7. Brendon Smith |  Australia | 1:59.03 | +1.27s | 1 | 23 | 0.70 | 878 | 15. | 25.95s | 55.86s | 1:30.96 |  | 8. Gal Cohen Groumi |  Israel | 2:00.00 | +2.24s | 8 | 21 | 0.57 | 857 | 20. | 25.73s | 55.78s | 1:31.04 |  | 9. Hector Ruvalcaba |  Mexico | 2:03.87 | +6.11s | 9 | 26 | 0.67 | 779 | 31. | 26.03s | 56.73s | 1:33.62 |  | 10.Hung Nguyen Tran |  Vietnam | 2:05.77 | +8.01s | 0 | 20 | 0.69 | 744 | 35. | 27.77s | 1:00.01s | 1:36.26 | 
 | Heat 5 11:33 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Duncan Scott |  Great Britain | 1:57.76 |  | 5 | 26 | 0.69 | 907 | 1. | 25.25s | 54.95s | 1:29.31 |  | 2. Lewis Clareburt |  New Zealand | 1:58.08 | +0.32s | 6 | 24 | 0.72 | 899 | 5. | 25.14s | 54.80s | 1:30.04 |  | 3. Shaine Casas |  United States | 1:58.56 | +0.80s | 4 | 23 | 0.65 | 888 | 11. | 24.92s | 55.13s | 1:29.58 |  | 4. Gabriel Lopes |  Portugal | 1:58.77 | +1.01s | 7 | 26 | 0.58 | 884 | 14. | 25.19s | 54.93s | 1:29.27 |  | 5. Ron Polonsky |  Israel | 1:59.15 | +1.39s | 2 | 22 | 0.68 | 875 | 17. | 25.34s | 54.95s | 1:29.30 |  | 6. Berke Saka |  Turkey | 1:59.72 | +1.96s | 9 | 20 | 0.67 | 863 | 18. | 26.00s | 55.78s | 1:30.75 |  | 6. Andreas Vazaios |  Greece | 1:59.72 | +1.96s | 8 | 29 | 0.64 | 863 | 18. | 26.04s | 55.63s | 1:30.28 |  | 8. Tomas Peribonio Avila |  Ecuador | 2:01.14 | +3.38s | 0 | 27 | 0.64 | 833 | 22. | 25.90s | 56.54s | 1:32.44 |  | 9. Adam Telegdy |  Hungary | 2:01.82 | +4.06s | 1 | 27 | 0.69 | 819 | 26. | 25.66s | 55.80s | 1:32.58 |  | -. Hubert Kos |  Hungary | DNS |  | 3 | 20 | - | - | -. |  |  |  | 
 | Heat 4 11:29 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Daiya Seto |  Japan | 1:57.80 | +0.04s | 5 | 29 | 0.61 | 906 | 2. | 24.97s | 54.75s | 1:28.69 |  | 2. Thomas Neill |  Australia | 1:58.30 | +0.54s | 6 | 21 | 0.65 | 894 | 8. | 25.67s | 54.98s | 1:30.28 |  | 3. Hugo Gonzalez |  Spain | 1:58.47 | +0.71s | 7 | 24 | 0.63 | 891 | 10. | 25.60s | 55.82s | 1:30.33 |  | 4. Finlay Knox |  Canada | 1:58.64 | +0.88s | 3 | 22 | 0.71 | 887 | 12. | 24.89s | 55.47s | 1:30.27 |  | 5. Shun Wang |  China | 1:59.05 | +1.29s | 4 | 29 | 0.66 | 878 | 16. | 25.19s | 55.39s | 1:30.73 |  | 6. Hsing-Hao Wang |  Chinese Taipei | 2:00.01 | +2.25s | 0 | 24 | 0.60 | 857 | 21. | 25.31s | 56.17s | 1:30.81 |  | 7. Carles Coll Marti |  Spain | 2:01.22 | +3.46s | 1 | 21 | 0.60 | 831 | 23. | 25.95s | 56.35s | 1:31.18 |  | 8. Minsuk Kim |  South Korea | 2:01.75 | +3.99s | 8 | 22 | 0.66 | 820 | 25. | 25.78s | 57.54s | 1:32.86 |  | 9. Zachary Ian Tan |  Singapore | 2:04.92 | +7.16s | 9 | 20 | 0.69 | 760 | 34. | 26.07s | 56.53s | 1:32.87 |  | -. Jaouad Syoud |  Algeria | DNS |  | 2 | 23 | - | - | -. |  |  |  | 
 | Heat 3 11:25 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Bernhard Reitshammer |  Austria | 2:01.42 | +3.66s | 5 | 29 | 0.74 | 827 | 24. | 25.90s | 57.33s | 1:31.88 |  | 2. Erick Gordillo |  Guatemala | 2:02.64 | +4.88s | 2 | 23 | 0.62 | 803 | 27. | 26.12s | 57.25s | 1:33.30 |  | 3. Munzer Mark Kabbara |  Lebanon | 2:02.99 | +5.23s | 0 | 20 | 0.63 | 796 | 28. | 26.47s | 58.14s | 1:33.13 |  | 4. Kristaps Mikelsons |  Latvia | 2:03.38 | +5.62s | 7 | 19 | 0.67 | 788 | 29. | 26.05s | 57.58s | 1:33.90 |  | 5. Daniil Pancerevas |  Lithuania | 2:03.76 | +6.00s | 4 | 19 | 0.71 | 781 | 30. | 26.11s | 57.32s | 1:33.66 |  | 6. Frantisek Jablcnik |  Slovakia | 2:03.89 | +6.13s | 3 | 19 | 0.65 | 779 | 32. | 26.37s | 58.25s | 1:35.16 |  | 7. Ronan Wantenaar |  Namibia | 2:05.97 | +8.21s | 8 | 22 | 0.64 | 741 | 36. | 27.85s | 1:00.18s | 1:35.26 |  | 8. Khai Xin Tan |  Malaysia | 2:06.31 | +8.55s | 9 | 18 | 0.71 | 735 | 37. | 27.71s | 1:01.20s | 1:37.48 |  | 9. Santiago Corredor |  Colombia | 2:06.37 | +8.61s | 1 | 24 | 0.66 | 734 | 38. | 26.47s | 57.88s | 1:36.73 |  | -. Matheo Mateos |  Paraguay | DSQ |  | 6 | 22 | - | - | -. | 26.93s | 59.60s | 1:36.35 | 
 | Heat 2 11:21 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Bernhard Tyler Christianson |  Panama | 2:04.71 | +6.95s | 4 | 21 | 0.64 | 763 | 33. | 26.86s | 58.07s | 1:33.19 |  | 2. Esteban Nunez Del Prado |  Bolivia | 2:06.60 | +8.84s | 2 | 19 | 0.61 | 730 | 39. | 26.29s | 58.64s | 1:34.83 |  | 3. Jarod Arroyo |  Puerto Rico | 2:06.67 | +8.91s | 5 | 22 | 0.71 | 728 | 40. | 26.79s | 59.13s | 1:35.74 |  | 4. Simon Bachmann |  Seychelles | 2:08.50 | +10.74s | 3 | 24 | 0.70 | 698 | 41. | 26.74s | 59.90s | 1:37.63 |  | 5. Zhulian Lavdaniti |  Albania | 2:09.32 | +11.56s | 6 | 20 | 0.67 | 685 | 42. | 27.52s | 59.89s | 1:37.43 |  | 6. Nikola Gjuretanovikj |  North Macedonia | 2:13.17 | +15.41s | 1 | 15 | 0.65 | 627 | 44. | 28.17s | 1:02.64s | 1:43.35 |  | 7. Thomas Wareing |  Malta | 2:13.80 | +16.04s | 7 | 23 | 0.70 | 618 | 45. | 28.88s | 1:02.81s | 1:42.17 |  | 8. Kinley Lhendup |  Bhutan | 2:28.39 | +30.63s | 0 | 19 | 0.74 | 453 | 48. | 29.09s | 1:06.96s | 1:51.93 |  | -. Filipe Gomes |  Malawi | DNS |  | 8 | 26 | - | - | -. |  |  |  | 
 | Heat 1 11:18 |  | time | gap | L | Ag | Rct | pts | Rk | 50m | 100m | 150m |  | 1. Sizhuang Lin |  Macau | 2:10.10 | +12.34s | 3 | 24 | 0.71 | 672 | 43. | 27.67s | 1:02.61s | 1:39.97 |  | 2. Abdul Rahman Yahya Mahfoodh Al Kulaibi |  Oman | 2:20.01 | +22.25s | 5 | 24 | 0.68 | 539 | 46. | 28.85s | 1:05.21s | 1:47.11 |  | 3. Hussein Mohammed Jasim Suwaed |  Iraq | 2:20.23 | +22.47s | 4 | 16 | 0.72 | 537 | 47. | 29.36s | 1:05.00s | 1:48.76 | 
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