Complex sentence: In order to avoid an involuntary marriage to any of the hated by her pehlivan, Barchin declares that she will marry anyone, who wins all four contests: horse race ("bayga"), archery skills, target shooting from a bow, and wrestling.
Split into simpler sentences: In order to avoid an involuntary marriage to any of the hated by her pehlivan, Barchin declares that she will marry anyone, who wins all four championships. The championships are the following: horse race ("bayga"), archery skills, target shooting from a bow, and wrestling.