While men are often portrayed as aggressive and combative, the study showed that, from the tennis court to the boxing ring - the modern-day equivalent of one-on-one conflict - men are more likely than women to make peace with their competitors after the final whistle blows.
Researchers studied videos of four sports in 44 countries and found that men are far more likely to engage in friendly physical contact - handshakes, back pats and even hugs - following competition than women.
"This finding feels very counterintuitive because we have social science and and evolutionary biology models that tell us males are much more competitive and aggressive," said Joyce Benenson from Harvard University in the US.
The study was sparked by questions of how men prevail against outside groups - whether in war or in symbolic battles like business deals - while still continually competing with others in their own group.
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To get at the question, they turned to a modern form of conflict - sports. Sports provide identical conflicts for males and females, so sex differences can be objectively examined, researchers said.
Searching YouTube and the video archive of several international sports federations, they found hundreds of videos of tennis, table tennis, badminton and boxing matches, and focused their attention not on the match itself, but its immediate aftermath.
"Most people think of females as being less competitive, or more cooperative, so you might expect there would be more reconciliation between females," said Benenson.
"With unrelated same-sex peers however, after conflicts, in males you see these very warm handshakes and embraces, even in boxing after they've almost killed each other," Benenson said.
"What we are talking about is women having a harder time when they have to compete with other women," she added.
The findings were published in the journal Current Biology.