| Championship | Event | # | Competitor |
|---|---|---|---|
| Interclub Open 2014 | Beach Flags | 8 |
Dennis COOK - Richmond Hill Lifesaving Club (CAN) |
| Interclub Open 2016 | Beach Flags | 5 |
Dennis COOK - Richmond Hill Lifesaving Club (CAN) |
| Interclub Open 2016 | Beach Sprint | 6 |
Dennis COOK - Richmond Hill Lifesaving Club (CAN) |
| National Team Open 2016 | Beach Flags | 3 |
Dennis COOK - Canada National Team (CAN) |
| National Team Open 2016 | Beach Sprint | 5 |
Dennis COOK - Canada National Team (CAN) |
| National Team Open 2018 | Beach Flags | 10 |
Dennis COOK - Canada National Team (CAN) |
| National Team Open 2018 | Beach Sprint | 9 |
Dennis COOK - Canada National Team (CAN) |
| Championship | Event | # | Competitors |
|---|---|---|---|
| Interclub Open 2018 | Line Throw | 2 |
Richmond Hill Lifesaving Club
(CAN) Bernardo CARDONA, Dennis COOK |
| Interclub Open 2012 | SERC | 10 |
Richmond Hill Lifesaving Club
(CAN) Stanislav BODROV, Dennis COOK , Daniel LENA, Cosmin NEGREANU |
| National Team Open 2018 | SERC | 13 |
Canada National Team
(CAN) Dennis COOK , Alexandra FERGUSON, Matthew PETERSON, Dallas WALKER |
| National Team Open 2016 | Beach Relay | 13 |
Canada National Team
(CAN) Dennis COOK , Dan GRBAC, Scott SOUTHWOOD, James VERREAULT |
| National Team Open 2016 | Line Throw | 14 |
Canada National Team
(CAN) Dennis COOK , Mackenzie SALMON |
| National Team Open 2018 | Beach Relay | 14 |
Canada National Team
(CAN) Dennis COOK , Alexandre DAUPHIN-LAPRISE, Kai DINGMAN, Jessey ELF |