Rusher tallied a top-20 finish and an under-par round.
Richmond women's golf placed 12th in the Edwin Watts/Kiawah Island Classic this week.
Marie Donnici shot a team-best round of 73 on Monday.
Elsa Diaz tied the school record for lowest round with 69 (-3).
Elsa Diaz led Richmond with a round of 75.
Head coach Ali Wright will welcome Lizzie Reedy and Ally Steffen to the program.
Isabella Rusher and Elsa Diaz each shot 74 in the final round of the Cardinal Cup.
Every Spider golfer improved her score on Monday as the Spiders moved up to 15th in the overall standings.
Marie Donnici, Sophie DiPetrillo and Annie Collom lead the Spiders after one round.
Sophie DiPetrillo won both of her matches to lead the Spiders on the final day in Ireland.
The Spiders won 10 matches against Rutgers and University College Cork.
UR will compete at one of Ireland's top links courses in Waterville.