His first, in the 11th minute, saw Darcy just about made it into the left corner, full-back Chris Healy making up for an earlier missed penalty with a great touchline conversion.
A minute into the second half, Darcy flew outside one defender and inside another on a remarkable solo effort from his own 40m line to make it 12-0.
King’s Hospital struck back, a clever front-of-the-lineout move culminating in Austrian second row Tassilo Herberstein claiming a try in the right corner, but they could not get the foothold they were looking for.
NEWBRIDGE: C Healy; N Delahunt, J Howlett, J O’Neill, J Darcy; M Sutton, R Mullen; J Phelan, C Doyle, H O’Donnell, C Nugent, T Treacy, M O’Connor, O McKnight, B Hayden (capt).
Replacements: J Coghlan-Murray for Mullen ht; E Wynne for Phelan (38); T Brady for Treacy (53); J Briody for Doyle (61); R Dromgoole-Maguire for O’Connor (64); A Shanahan for O’Neill, P Kyne for Darcy both (67).
KING’S HOSPITAL: L Morgan; K McMillan, I Fitzpatrick, M Bursey, R Olusa; E Walsh, A Moore; N Mpiko, G Reynolds, T O’Sullivan, D Duffy (capt), T Herberstein, E Ryan, C Spillane, C Kenny.
Replacements: W Potterton for Kenny (56); D Ables for O’Sullivan, R Sharkey for McMillan both (65).
Referee: J Carville (Leinster Branch).