It will be YM ladies' first ever national cup final after just three years in existence and they will hope to add the major silverware to back-to-back league titles. They disposed of Clonmel 4-0 to reach the final where they will meet Fermoy who edged a thriller over Naas, 4-3 after extra-time.
Division four's Mullingar will be looking for a similar piece of history with a first national title. They won in Ulster for the second round running, beating Saintfield 3-2 with influential midfielder Tom Bowers scoring one and Colin Watters bagging a brace.
Elsewhere, Pembroke II maintained their hopes of retaining the Irish Junior Cup, putting their league form behind them to beat Corinthian II 2-0 - veteran Duncan McKeen and Scott Lowrie getting the goals.
They now face a Sandymount derby in the semi-finals against YMCA II. Glenanne, should they get by an impressive Cork C of I B team next week, will have to travel to Cookstown for a last-four encounter.
Genesis, meanwhile, were eliminated from the Irish Hockey Trophy at the semi-final stage after an odyssey-style season had seen them travel all over the country. Their hopes were dashed by Catholic Institute who ran out 3-0 winners.
ESB Irish Hockey Trophy - semi-final
Ulster Elks 2 (Louise Wright, Caroline Smith) Cookstown 0; Catholic Institute 3 (Rosie Pratt, Kym Daly, Aoife Rosin Burke) Genesis 0
Men's Irish Hockey Trophy - semi-final
North Down 4 Catholic Inst 0; NICS 4 (Aaron Gill 2, J Anderson, R Anderson) Antrim 5 (J McMeekin 2, S Mitchell, R Maybin, I Brownlees)
ESB Irish Hockey Challenge - semi-final
Fermoy 4 (MT Murphy, N Keniry 2, T Fitzpatrick) Naas 3 (L Sharpe, J Blanchfield, B Carey) after extra-time; YMCA 4 Clonmel 1
Men's Irish Hockey Challenge - semi-final
Down 1 (Richard Owens) Campbellians 2 (Joel Easlea, Adam Campbell) after extra-time; Saintfield 2 (Davy Johnson, Gavin Kirkpatrick) Mullingar 3 (Mullingar: Colin Watters 2, Tom Bowers)
Men's Irish Junior Cup - Quarter Finals
Pembroke II 2 (Duncan McKeen, Scott Lowrie) Corinthian II 0
Semi-Final draw (March 28): Pembroke Wanderers II v YMCA II; Cookstown II v Glenanne II/Cork C of I II