Lisa Hart and Kenneth Steuer met in 1973 when they were teens at an overnight camp. They reconnected in 2011 in a social media page for the camp’s alumni.

Cameron Keady and Taylor Toth had resisted several attempts by their college friends to set them up — until they actually saw each other in person.

A chance meeting on the court began a lifelong friendship, and eventual partnership, between Andrea Mingo and Danielle Robinson, both basketball players.