All problems are available on the Art of Problem Solving website at https://artofproblemsolving.com/community/c1987547_2021_cca_math_bonanza.
The top 10 individuals (as announced at the competition) were (with ties broken by the Tiebreaker Round):
| Place | Team | Name | Score |
| 1 | Torrey Pines High School 1 | Derek Liu | 11 |
| 2 | Orange County Math Circle 1 | Fletch Rydell | 10 |
| 3 | Torrey Pines High School 2 | Elliot Liu | 10 |
| 4 | Torrey Pines High School 2 | Jacopo Rizzo | 10 |
| 5 | Torrey Pines High School 1 | Giacomo Rizzo | 9 |
| 6 | Lincoln-Sudbury Regional High School | Taiki Aiba | 9 |
| 7 | The Bishop’s School 1 | Eddie Qiao | 8 |
| 8 | Orange County Math Circle 1 | Sophia Chen | 8 |
| 9 | Orange County Math Circle 2 | Kristine Lu | 8 |
| 10 | Torrey Pines High School 1 | Jeff Ren | 8 |
The top 5 teams were:
| Place | Team | Total | Indv Total (out of 60) | Team Round (50) | Lightning Round (40) |
| 1 | Torrey Pines High School 1 | 113.32 | 35 | 50 | 28.32 |
| 2 | Torrey Pines High School 2 | 87.61 | 32 | 30 | 25.61 |
| 3 | Orange County Math Circle 1 | 82.04 | 29 | 30 | 23.04 |
| 4 | The Bishop’s School 1 | 79.46 | 22 | 30 | 27.46 |
| 5 | Carmel Valley Middle School 1 | 70.00 | 22 | 30 | 18.00 |
Congratulations to the following teams for achieving the highest possible score on the coordination problem (Lightning 5.1):
Santa Fe Christian School 3 (submitted 14) and Lincoln-Sudbury Regional High School 1 (submitted 12).
The best middle school team was Carmel Valley Middle School 1.
The best new team was Lincoln-Sudbury Regional High School 1.
CCA Math Team 