If they played 30 rounds, the total possible points from wins are 5*30 = <<5*30=150>>150 points.
Scoring 3/5 of the total possible points earns you 3/5 * 150 points = <<3/5*150=90>>90 points
If Taro scored 4 points less than 3/5 of the total points, he scored 90 points - 4 points = <<90-4=86>>86 points.
If the total points scored in the game is 150, then Vlad scored 150 points - 86 points = <<150-86=64>>64 points
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