With steam pouring from their nostrils and hooves pounding the sand, the two prize bulls square off warily, then clash head-on like freight trains.
There is plenty of blood and guts on display in South Korea's own version of bullfighting that draws crowds of thousands to this rural community, the center of the sport in the southeast of the country.
But unlike Spanish bullfighting, there are no matadors, no swords and capes and no killing of any kind.
Sinews and muscles bulge as the beasts lock horns for more than 20 minutes while handlers holler at the top of their lungs urging the animals on.
"Go Heryong. Go! Go!" screams Kim Man-keun, a 26-year-old handler whose six-year-old bull, horns spattered with blood, is struggling against the pre-match favorite, Bumyong, a year younger.
"Stab it, Bumyong, stab!' cries the rival's handler as the beasts weighing 750kg clash on the sandy ground ringed by a wooden fence.
With Bumyong showing signs of exhaustion, panting heavily, and dribbling from his mouth, Heryong swiftly turns sideways and frees its locked horns to lunge freely at the flank of Bumyong.
With a jolt, Bumyong turns tail and speeds away to the cheers of thousands of spectators, bringing the bout to an end and handing a 3 million won (around US$3,000) cash prize to the owner of the winning bull.
Heryong is one of 13 bulls who leaves with a prize from the annual bullfight festival held each March in Cheongdo, a farming village 350km southeast of Seoul.
The South Korean bullfight traces its roots back hundreds of years to farming communities where bulls were the farmer's prize possession and status symbol and fights would decide who should get to use best grazing grounds.
In modern times, the tradition continues in the southeastern provinces of North and South Gyeongsang, and bullfights have been attracting an increasing numbers of spectators.
A total of 104 prize bulls who made it to quarterfinals in other events were invited to the elite Cheongdo tournament.
The winner and his handler are acclaimed by their supporters, all from Heryong's home village of Topyong, who danced to the tune of metal gongs and hourglass-shaped drums of a traditional farmers' dancing band.
"We all came here to cheer Heryong. I'm quite pleased at the victory," says Oh Seung-Gon, 57-year-old chairman of Topyong village council, as other villagers clean the bull's mouth and nose of blood and gore with a can of bubbly soft drink.
It is clear that Heryong knows well enough that he is the winner. Like other champions on display here, he holds his head high and lets rip with ground shaking roars. Losers, heads lowered, generally trundle towards the exits and slip away in silence.
Each match begins when two bulls are led by their handlers to the center of the ring. The beasts are on edge and blow hard from their flared nostrils while stomping the ground.
As the judge wearing a blue and red shirt blows the whistle, the handlers let go of the nose strings and the bulls immediately square off, clash heads and lock horns.
There is no time limit and fights end only when a bull gives up and turns tail. Some matches last an hour or longer but deaths or fatal injuries to the bulls are rare.
For followers of bullfighting, the Cheongdo festival ranks as the national championship.
Only top bulls can take part and they are classified into three weight categories, with Kap class weighing 750kg and above, Ul class between 650kg and 750kg and Byong class below 650kg.
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