McCoys 10, Hatfields 1

And note the possible explanation as to the origins of the Halfield-McCoy feud (from AP via Microkhan):

Bo McCoy, right, one of the organizers of the Hatfield-McCoy Reunion, accepts a trophy on behalf of the McCoy team after defeating the Hatfields 10-1 in a softball game on June 10, 2000, in Pikeville, Ky. Man on left is unidentified. The most infamous feud in American folklore, the long-running battle between the Hatfields and McCoys, may be partly explained by a rare, disease inherited by the McCoy clan that can lead to hair-trigger rage and violent outbursts.

[McCoys]

[Hatfields]