| Roles | Non-starter |
|---|---|
| Sex | Male |
| Full name | Blagoi•Kostov |
| Used name | Blagoi•Kostov |
| Original name | Благой•Костов |
| Born | 10 November 1933 in Sofia, Sofia Grad (BUL) |
| Measurements | 168 cm / 62 kg |
| NOC | Bulgaria |
Although Blagoi Kostov was listed as entered in the 1,500 metres in the Official Entry list, he was likely a coach, and the entry was done as a way to get more personnel at the Olympics for Bulgaria.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Athletics | BUL |
Blagoi Kostov | |||
| 1,500 metres, Men (Olympic) |