The 2021 Singapore Championships were held from March 12 through March 21 in Singapore.
Senior All-Around Results
| Rank | Athlete | FX | PH | SR | VT | PB | HB | AA |
| 1 | Eli Low NTC |
11.550 | 11.800 | 11.500 | 12.400 | 12.200 | 10.900 | 70.350 |
| 2 | Robin Sim NTC |
12.400 | 12.900 | 11.750 | 11.600 | 11.600 | 10.000 | 70.250 |
| 3 | Mikhail Haziq Mohammed NTC |
12.200 | 13.200 | 10.600 | 12.750 | 11.150 | 9.650 | 69.550 |
| 4 | Zac Liew NTC |
12.150 | 11.600 | 11.300 | 12.650 | 11.750 | 9.550 | 69.000 |
| 5 | John Sim Hwa Chong Institution |
10.150 | 3.500 | 9.900 | 9.800 | 11.600 | 8.900 | 53.850 |
| 6 | Terry Tay NTC |
13.750 | —— | —— | 14.250 | —— | —— | 28.000 |
| 7 | Jer Rong Chong Prime Gymnastics |
—— | 12.900 | —— | —— | 12.250 | —— | 21.150 |
| 8 | Kaeson Lim NTC |
—— | 12.300 | —— | —— | —— | —— | 12.300 |
Senior Floor Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Terry Tay | NTC | 6.1 | 8.450 | 14.550 | |
| 2 | John Sim | Hwa Chong Institute | 3.5 | 5.800 | -0.6 | 8.700 |
Senior Pommels Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Jer Rong Chong | Prime Gymnastics | 4.2 | 8.550 | 12.750 | |
| 2 | Mikhail Haziq Mohammed | NTC | 4.4 | 8.050 | 12.450 | |
| 3 | Kaeson Lim | NTC | 4.0 | 8.100 | 12.100 | |
| 4 | Zac Liew | NTC | 4.4 | 7.650 | 12.050 | |
| 5 | Robin Sim | NTC | 4.8 | 6.850 | 11.650 | |
| 6 | John Sim | Hwa Chong Institution | 2.3 | 6.850 | 9.150 |
Senior Rings Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Eli Low | NTC | 3.7 | 8.050 | 11.750 | |
| 2 | John Sim | Hwa Chong Institution | 3.0 | 7.600 | 10.600 |
Senior Vault Final Results
| Rank | Athlete | Club | D | E | ND | Total | Average |
| 1 | Terry Tay | NTC | 5.2 | 9.050 | 14.250 | 13.675 | |
| 5.2 | 8.400 | -0.5 | 13.100 | ||||
| 2 | Mikhail Haziq Mohammed | NTC | 4.0 | 9.000 | -0.1 | 12.900 | 12.225 |
| 3.2 | 8.650 | -0.3 | 11.550 | ||||
| 3 | John Sim | Hwa Chong Institution | 2.4 | 7.550 | 9.950 | 10.350 | |
| 1.6 | 9.150 | 10.750 |
Senior P-Bars Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Zac Liew | NTC | 3.5 | 9.150 | 12.650 | |
| 2 | Jer Rong Chong | Prime Gymnastics | 3.4 | 9.000 | 12.400 | |
| 3 | John Sim | Hwa Chong Institution | 2.4 | 9.000 | 11.400 | |
| 4 | Eli Low | NTC | 3.2 | 8.150 | 11.350 |
Senior High Bar Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Zac Liew | NTC | 2.9 | 8.000 | 10.900 | |
| 2 | John Sim | Hwa Chong Institution | 2.6 | 8.000 | 10.600 | |
| 3 | Mikhail Haziq Mohammed | NTC | 2.4 | 6.900 | 9.300 |
Junior All-Around Results
| Rank | Athlete | FX | PH | SR | VT | PB | HB | AA |
| 1 | Tong-Yu Kho Singapore Sports School |
12.000 | 11.550 | 11.550 | 11.700 | 12.050 | 9.500 | 68.350 |
| 2 | Abdul Barr Abdullatif Singapore Sports School |
11.900 | 7.300 | 11.000 | 11.800 | 10.750 | 10.400 | 63.150 |
| 3 | Owen Inkster UWC SEA East Dragons |
11.400 | 3.100 | 8.900 | 11.600 | 10.550 | 5.150 | 50.700 |
Junior Floor Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Tong-Yu Kho | Singapore Sports School | 4.2 | 8.450 | 12.650 | |
| 2 | Owen Inkster | UWC SEA East Dragons | 3.5 | 8.000 | 11.500 | |
| 3 | Abdul Barr Abdullatif | Singapore Sports School | 4.0 | 7.000 | -0.3 | 10.700 |
Junior Pommels Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Owen Inkster | UWC SEA East Dragons | 2.2 | 6.850 | 9.050 | |
| 2 | Tong-Yu Kho | Singapore Sports School | 2.5 | 6.100 | 8.600 | |
| 3 | Abdul Barr Abdullatif | Singapore Sports School | 2.9 | 4.900 | 7.800 |
Junior Rings Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Abdul Barr Abdullatif | Singapore Sports School | 3.0 | 7.950 | -0.3 | 10.650 |
| Owen Inkster | UWC SEA East Dragons | 2.9 | 8.050 | -0.3 | 10.650 | |
| 3 | Tong-Yu Kho | Singapore Sports School | 3.0 | 7.250 | 10.250 |
Junior Vault Final Results
| Rank | Athlete | Club | D | E | ND | Total | Average |
| 1 | Abdul Barr Abdullatif | Singapore Sports School | 3.2 | 9.000 | 12.200 | 11.675 | |
| 1.6 | 9.550 | 11.150 | |||||
| 2 | Tong-Yu Kho | Singapore Sports School | 3.2 | 8.900 | 12.100 | 11.500 | |
| 1.6 | 9.300 | 10.900 | |||||
| 3 | Owen Inkster | UWC SEA East Dragons | 2.4 | 8.800 | 11.200 | 11.200 | |
| 2.4 | 8.800 | 11.200 |
Junior P-Bars Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Tong-Yu Kho | Singapore Sports School | 3.3 | 8.850 | 12.150 | |
| 2 | Owen Inkster | UWC SEA East Dragons | 2.3 | 8.450 | 10.750 |
Junior High Bar Final Results
| Rank | Athlete | Club | D | E | ND | Total |
| 1 | Owen Inkster | UWC SEA East Dragons | 2.3 | 8.350 | 10.650 | |
| 2 | Abdul Barr Abdullatif | Singapore Sports School | 2.5 | 7.900 | 10.400 | |
| 3 | Tong-Yu Kho | Singapore Sports School | 2.7 | 6.650 | 9.350 |
The Gymternet 