Home History
| Thailand Premier League | 2021/03/28 11:00 | Chiangrai Utd v Samut Prakan City | W | 2-1 |
| Thailand Premier League | 2021/03/24 12:00 | Suphanburi FC v Chiangrai Utd | L | 2-1 |
| Thailand Premier League | 2021/03/20 10:00 | Port FC v Chiangrai Utd | W | 0-1 |
| Thailand Premier League | 2021/03/16 11:30 | Chiangrai Utd v Sukhothai FC | W | 3-1 |
| Thailand Premier League | 2021/03/13 10:00 | Muang Thong United v Chiangrai Utd | W | 2-3 |
| Thailand Premier League | 2021/03/10 11:00 | Chiangrai Utd v Police Tero FC | W | 2-0 |
| Thailand Premier League | 2021/03/07 10:00 | BG Pathum United v Chiangrai Utd | D | 0-0 |
| Thailand Premier League | 2021/03/04 11:30 | Chiangrai Utd v Chonburi | W | 4-3 |
Away History
| Thailand Division 3 | 2021/03/21 08:30 | Muangkan Utd v Lamphun Warrior FC | W | 2-1 |
| Thailand Division 3 | 2021/03/14 11:00 | Lamphun Warrior FC v Muangkan Utd | L | 2-0 |
| Thailand Division 3 | 2021/03/07 09:00 | Muangkan Utd v Bangkok FC | W | 2-0 |
| Thailand Division 3 | 2021/02/28 09:00 | North Bangkok University v Muangkan Utd | D | 0-0 |
| Thailand Division 3 | 2021/02/21 09:00 | Krabi FC v Muangkan Utd | W | 0-1 |
| Thailand Division 3 | 2021/02/14 09:00 | Muangkan Utd v Raj Pracha | D | 1-1 |
| Thailand Division 3 | 2021/02/07 09:00 | Muangkan Utd v Songkhla FC | W | 3-0 |
| Thailand Cup | 2021/02/03 08:00 | Muangkan Utd v Nong Bua Pitchaya | W | 1-0 |