| Championship | Event | # | Competitors |
|---|---|---|---|
| National Team Open 2008 | 4x25m Manikin Relay | 13 |
Bulgaria National Team
(BUL) Viktor DOSHEV, Emil MARKOV, Ivo PAVLOV, Boris ZAHARIEV |
| National Team Open 2010 | 4x50m Medley Relay | 16 |
Bulgaria National Team
(BUL) Georgi SEYMENOV, Dimo VULEV, Svetoslav VULEV, Boris ZAHARIEV |