Complex sentence: However, players are only eligible to qualify for the tournament if they have played a minimum of eight (8) ATP Challenger Tour tournaments, and the accumulated year-to-date points are only countable to a maximum of ten (10) best results.
Split into simpler sentences: However, players are only eligible to qualify for the tournament if they have played a minimum of eight (8) ATP Challenger Tour tournaments. Moreover, the accumulated year-to-date points are only countable to a maximum of ten (10) best results.