from your Query (say the name of the query is Query1) that calculate the Average, High games, and Total games, create new query out of it"
Code:
SELECT BowlerName,
Average,
[High game],
[Total Games],
(SELECT Top 1 COUNT("1") FROM yourBowlingTable WHERE BowlerName = Query1.BowlerName And [Game Score] Between 200 And 249) As [# of Games 200 and over],
(SELECT Top 1 COUNT("1") FROM yourBowlingTable WHERE BowlerName = Query1.BowlerName And [Game Score] Between 250 And 299) As [# of Games 250 and over],
(SELECT Top 1 COUNT("1") FROM yourBowlingTable WHERE BowlerName = Query1.BowlerName And [Game Score] >=300 ) As [# of Games 300]
FROM Query1