Examination results for the 35th IChO
Countries ranked by average score
| Rank | Country | Students | Mean score |
| 1 | CN | 4 | 93.49 |
| 2 | IR | 4 | 89.04 |
| 3 | KR | 4 | 88.58 |
| 4 | TH | 4 | 87.94 |
| 5 | BY | 4 | 87.93 |
| 6 | RU | 4 | 87.48 |
| 7 | IN | 4 | 86.69 |
| 8 | CU | 1 | 86.48 |
| 9 | SG | 4 | 84.29 |
| 10 | DE | 4 | 83.61 |
| 11 | TW | 4 | 83.43 |
| 12 | UA | 4 | 83.17 |
| 13 | PO | 4 | 82.99 |
| 14 | CA | 4 | 82.78 |
| 15 | CZ | 4 | 81.89 |
| 16 | RO | 4 | 80.53 |
| 17 | KZ | 4 | 80.50 |
| 18 | VN | 4 | 80.16 |
| 19 | EE | 4 | 79.47 |
| 20 | GB | 4 | 79.33 |
| 21 | AU | 4 | 79.16 |
| 22 | HU | 4 | 78.71 |
| 23 | SK | 4 | 78.12 |
| 24 | US | 4 | 77.55 |
| 25 | VE | 4 | 77.28 |
| 26 | ID | 4 | 77.13 |
| 27 | FR | 4 | 76.89 |
| 28 | AT | 4 | 76.40 |
| 29 | IT | 4 | 74.63 |
| 30 | TR | 4 | 74.56 |
| 31 | AZ | 4 | 74.05 |
| 32 | MX | 4 | 73.59 |
| 33 | LT | 4 | 70.69 |
| 34 | NL | 4 | 69.36 |
| 35 | FI | 4 | 67.05 |
| 36 | CT | 4 | 66.07 |
| 37 | JP | 4 | 65.17 |
| 38 | DK | 4 | 64.26 |
| 39 | AR | 4 | 63.78 |
| 40 | GR | 4 | 62.09 |
| 41 | LV | 4 | 61.98 |
| 42 | ES | 4 | 61.96 |
| 43 | TM | 4 | 61.91 |
| 44 | BR | 4 | 61.09 |
| 45 | BG | 4 | 60.23 |
| 46 | CH | 4 | 59.93 |
| 47 | NZ | 4 | 59.64 |
| 48 | IS | 4 | 58.68 |
| 49 | IE | 4 | 58.59 |
| 50 | CY | 4 | 57.29 |
| 51 | KG | 4 | 55.67 |
| 52 | BE | 4 | 55.53 |
| 53 | SI | 4 | 54.65 |
| 54 | UR | 3 | 54.49 |
| 55 | SE | 4 | 53.40 |
| 56 | NO | 4 | 52.99 |
| 57 | PT | 4 | 42.93 |
| 58 | EG | 4 | 24.43 |
| 59 | KW | 4 | 18.48 |