Race Cards / Horse Changes
24 February 2021 - Happy Valley
Gear Changes
| Race | Horse | Change |
| 1 | (6) SHINEALOT | (2nd-time blinkers) |
| 1 | (8) GENERAL DINO | (2nd-time blinkers) |
| 2 | (1) A A AGILITY | (blinkers, tongue tie removed) |
| 2 | (12) THUNDER STOMP | (blinkers removed) |
| 4 | (12) TELECOM SMART | (Crossed Nose Band) |
| 5 | (2) MY MY MY | (Crossed Nose Band) |
| 5 | (3) HARMONY FIRE | (Crossed Nose Band) |
| 5 | (4) RAGING BLAZE | (1st-time tongue tie) |
| 5 | (5) TOWARDS SUCCESS | (1st-time Hood) |
| 5 | (8) FORTUNE CARRIER | (blinkers, tongue tie removed) |
| 5 | (11) INFINITE POWER | (visor removed) |
| 5 | (12) OVERSUBSCRIBED | (Crossed Nose Band) |
| 7 | (R) JUNGLE BLAZE | (1st-time tongue tie) |
| 8 | (3) MASSIVE POCKET | (Crossed Nose Band) |
| 8 | (10) SINCERE BOY | (1st-time blinkers) |
| 9 | (5) TSAR | (1st-time Hood) |
Trainer Changes
| Race | Horse | From | To |
| 8 | (5) SMART LEADER | A. S. Cruz | W. Y. So |
| 8 | (10) SINCERE BOY | P. F. Yiu | P. O'Sullivan |
Suspended Jockeys
| Currently Suspended Jockeys | Details | Suspended | Resuming |
| K. H. Chan | Careless riding | 17/02/2021 | 25/02/2021 |
| C. L. Chau | Careless riding | 24/02/2021 | 01/03/2021 |
| N. Callan | Careless riding | 24/02/2021 | 04/03/2021 |
| Deferred Suspended Jockeys | Details | Suspended | Resuming |
| J. Moreira | Careless riding | 03/03/2021 | 08/03/2021 |
| K. C. Leung | Careless riding | 03/03/2021 | 08/03/2021 |
| A. Badel | Careless riding | 07/03/2021 | 11/03/2021 |
| T. Piccone | Careless riding | 07/03/2021 | 11/03/2021 |
| C. L. Chau | Careless riding | 10/03/2021 | 18/03/2021 |
| V. Borges | Careless riding | 10/03/2021 | 14/03/2021 |
| T. Piccone | Careless riding | 13/03/2021 | 18/03/2021 |
