Pig enthusiasts laid bets on the competitors in each event, at an exhibition centre near Moscow.
Each pig, dressed in a numbered bib, was carried squealing into the arena for each event.
Alexei Sharshkov, vice-president of the Sport-Pig Federation, which has around 100 members, said the pigs would not be ending up on anyone's dinner table.
"They go on to produce a new generation of sport pigs. They don't get eaten," he said. "How could you eat a competitor who is known around the world?"
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