The tournaments are held throughout the island in its seven bullrings, which are about 20 metres in diameter. Around the ring is a variety of seating. Much like in sumo, the seats at the front are the best and most expensive.
After an opening ceremony, the matches begin. Bulls are pulled into the ring, accompanied by their seko, as attendants lead the way, spraying salt and shouting, “Waido! Waido!”, a traditional local chant to warm up the crowd. People wearing happi (festival-style coats) blow trumpets and beat on drums while spectators cheer.
The number of seko on the island is estimated to be around 100, of which about 10 are veteran participants. Seko lock the bulls’ horns and pat the back of their bull while shouting out “Haine! Haine!” (“OK, now go!”). They also shout “Hii ya” (OK, push!), “Tsukka mon!” (Thrust your horns!) and “Keh ram!” (Hook the horns and push!).
The winner is decided when one bull runs away. Then supporters of the winning bull and seko pour into the ring wearing their team colours. They whistle, dance, scream and throw confetti.
After the final match for the all-island title, most spectators stay long behind, praising the bull and owner.