A check with previous coaches reveals that Rebecca Hughes and Alice Collins were the first to play to join the 100 club when Keelty was coaching Collegiate A, while Te Reo Paki got hers with Rosie Austin as coach.
Anna McIlraith and Kelsey Armstrong both got their membership to the elite group last year under Dryden.
"It is a huge achievement," Keelty said.
"It's virtually impossible to manage this unless girls get into the A team in Year 11 and stay there injury/sickness-free for most of the three seasons. I coached all the girls at various stages of their careers.
"I have had a little more to do with Sarah and Briar as I coached them in years 7 and 8 at St George's then again in junior A for Collegiate in years 9 and 10 and now back with them as manager of the A team," Keelty said.
The achievement of both Lourie and Teki-Clark took on even more mana given the levels they have reached in other sports over the same period.
Lourie is a fine track athlete specialising in the 400m sprints and began showjumping at Grand Prix level last season, while Teki-Clark is a competitive swimmer at top level.