Complex sentence: In the mid- 1990s, when Tabb and her husband, professional pool player Ross McInnes, began running their own amateur eight-ball and nine-ball pool tournaments, Tabb became involved as a referee in order to keep costs down.
Split into simpler sentences: In the mid- 1990s, Tabb and her husband, professional pool player Ross McInnes, began running their own amateur eight-ball and nine-ball pool tournaments. Tabb states that she became involved as a referee in order to keep costs down.