sentences:  On January 11, Spinks (with a high run of 51) beat former amateur champion and then-pro Calvin Demarest, 250–199, in only 15 innings – despite scoring 0 points in 4 innings and only 1-point in another – by building several solid runs in the innings in which things went his way.For all intents and purposes it was a 10-inning win.Demarest took his revenge only days later, defeating Spinks in a close 250–225, 23-inning game on January 13, despite Spinks's high run of 78 (his highest 18.2 run on record in publicly available sources, and considerably higher than Demarest's 52 that night).