Portmarnock's Conor Purcell added a two under 71 to his opening 75 to lead the Ulster Boys Championship by two strokes at halfway at Castlerock.

The Leinster interprovincial tops the leaderboard on level par 146 from Carton House's Marc Boucher, who shot a best of the day 69, Royal Portrush's Peter Kerr (70), Tandragee's William Small (71) and Co Sligo's David Brady (72).

Compared to Tuesday's first round, when three over par was the best score, easier pins and a less demanding wind made a massive difference to scoring with 14 players matching or bettering par.

The top 54 qualified for Thursday's final 36 holes.

Ulster Boys Championship, Castlerock (Par 73)

Detailed scores

146 Conor Purcell (Portmarnock) 75 71 

148 Marc Boucher (Carton House Golf Club) 79 69, Peter Kerr (Royal Portrush Golf Club) 78 70, William Small (Tandragee Golf Club) 77 71, David Brady (Co. Sligo Golf Club) 76 72 

149 John Murphy (Kinsale) 79 70 

150 Ryan Corry (Clandeboye) 76 74 

151 Owen Crooks (Bushfoot Golf Club) 79 72 

153 Tommy Doran (Balbriggan Golf Club) 76 77 

154 Cathal Butler (Kinsale) 83 71, Gavin Fitzmaurice (Balcarrick Golf Club) 81 73, Karl Eccles (Clandeboye) 79 75 

155 Jamie Knipe (Royal Portrush Golf Club) 80 75, Michael Kennelly (Athenry Golf Club) 80 75, Marc McKinstry (Cairndhu Golf Club) 77 78, Marc Norton (Belvoir Park Golf Club) 76 79, Gareth Hogan (Island) 75 80 

156 Devin Morley (Oughterard Golf Club) 84 72, Ronan McCambridge (Cushendall Golf Club) 84 72, David Clince (Craddockstown Golf Club) 82 74, Michael McGurk (Warrenpoint Golf Club) 81 75, Adam McCormick (Scrabo Golf Club) 79 77, Reece Black (Hilton Templepatrick Golf Club) 79 77 

157 James Cronin (Woodbrook Golf Club) 80 77 

158 Ward Farrell (Dunmurry) 87 71, Rory Williamson (Holywood Golf Club) 84 74, Nathan McCann (Lurgan Golf Club) 81 77, David Hill (Roscommon Golf Club) 81 77, Jack Doherty (Carton House Golf Club) 79 79 

159 Declan Kelly (Hermitage Golf Club) 82 77, Connor Mulholland (Mount Juliet Golf Club) 82 77, Dean Cafferty (Carton House Golf Club) 80 79, Luke Cummins (West Waterford Golf Club) 80 79, Marc Mccormack (Ashbourne) 80 79, Tyrone Clarke (Royal Portrush Golf Club) 78 81 

160 Alan Fahy (Bray) 87 73, Shane McDermott (Co. Cavan Golf Club) 86 74, Henry Clark (Shandon Park Golf Club) 85 75, Matthew Fitzsimons (Ardglass Golf Club) 84 76, Eamonn O'driscoll (Killarney Golf Club) 82 78, Campbell Rodgers (Royal Portrush Golf Club) 82 78, Ross Mohan (Balcarrick Golf Club) 82 78, David McAleenon (Edenmore Golf Club) 82 78, Hugh O'Hare (Fortwilliam Golf Club) 82 78, Brian Jnr Fehily (Newlands) 79 81, Bill Hannan (Carton House Golf Club) 79 81, Andrew Mays (Portmarnock) 79 81,, , 

161 David Cunningham (Tandragee Golf Club) 87 74, T J Ford (Co. Sligo Golf Club) 87 74, Stewart McCaw (Royal Belfast Golf Club) 86 75, Jordan Logue (Hilton Templepatrick Golf Club) 83 78, Fergus McCambridge (Cushendall Golf Club) 82 79, Daniel Reilly (Galgorm Castle Golf Club) 80 81, Patrick Brennan (Belvoir Park Golf Club) 80 81

Non-qualifiers

161 Louis O'Hara (Athenry Golf Club) 77 84 

162 Peter Cummins (Lurgan Golf Club) 85 77, Luke Donnelly (Kilkenny Golf Club) 85 77, William Eickholt (Portmarnock) 84 78, Odhran Mullan (Castlerock Golf Club) 83 79, Jack Brophy (The Royal Dublin) 83 79, Conor Smart (Belvoir Park Golf Club) 82 80 

163 Michael Young (FRANCE) 87 76, Sean Doyle (Athlone Golf Club) 84 79, Jake Vickers (Balbriggan Golf Club) 82 81, Gary Trotter (Aughnacloy) 81 82, Jake Rowe (Tandragee Golf Club) 81 82, Sean Kestell (Charlesland Golf Club) 79 84 

164 Dara Phelan (Faithlegg Golf Club) 87 77, Conor Byrne (Woodbrook Golf Club) 84 80, Ross Nelson (Belvoir Park Golf Club) 84 80, Anton Brennan (Athenry Golf Club) 83 81 

165 Mark Healy (Kinsale) 84 81, Jamie Tharma (Royal Belfast Golf Club) 83 82, Chris Black (Dunmurry) 81 84, Jack Patton (Letterkenny Golf Club) 81 84, Caolan Murphy (Greenore Golf Club) 80 85, Gabriel Gribben (Fortwilliam Golf Club) 80 85 

166 Gary Ward (Kinsale) 85 81, Anthony Mc Ateer (Warrenpoint Golf Club) 81 85 

167 Ben Graham (Scrabo Golf Club) 94 73, Conor McDonald (Lurgan Golf Club) 86 81, Peter Clark (Royal Portrush Golf Club) 85 82, Ben Surgeoner (Rathmore) 83 84 

168 Cian Hutchinson (Carton House Golf Club) 87 81, Keaton Morrison (Holywood Golf Club) 86 82, Rory Murphy (Dun Laoghaire Golf Club) 83 85 

169 Niall Doran (Mourne) 88 81, Sean Breheny (St. Anne's) 87 82, Oisin Devereux (Carton House Golf Club) 87 82, Jack Madden (Dungannon Golf Club) 86 83, Cathal Hastings (Castlebar Golf Club) 86 83, Enda Kennedy (Black Bush) 83 86, Adam Cromwell (Co. Armagh Golf Club) 82 87, Tom O'hara (Co. Sligo Golf Club) 80 89 

170 Jack Johnston (Clandeboye) 95 75, Conor Mckay (Roe Park Golf Club) 92 78, Ryan Thompson (Greenacres Golf Club) 87 83, Ross Moore (Royal Portrush Golf Club) 86 84, Christopher Duffy (Letterkenny Golf Club) 86 84, Conor Mooney (Black Bush) 85 85, Sean Murphy (Charlesland Golf Club) 83 87,, 

171 Adam Crum (Cairndhu Golf Club) 87 84, Peter Rolston (Shandon Park Golf Club) 87 84, Ryan Sheerin (Tullamore Golf Club) 85 86 

172 Harry Mcgeary (Dungannon Golf Club) 94 78, Timothy Howes (Mount Juliet Golf Club) 87 85, Darragh Burke (Tullamore Golf Club) 85 87 

173 Cian Feeney (Co. Sligo Golf Club) 93 80, Patrick Jordan (Silverwood Golf Club) 90 83, Ryan McNamara (Carrickfergus Golf Club) 90 83, Aaron O'donnell (Athenry Golf Club) 88 85, Brian Houston (Edenmore Golf Club) 88 85 

174 Jason Murphy (Warrenpoint Golf Club) 92 82, Jude Maskey (Fortwilliam Golf Club) 91 83, Nathan Kernaghan (Massereene Golf Club) 89 85, Daragh Coleman (Skerries Golf Club) 88 86 

175 Eanna Melville (Gort Golf Club) 94 81, David Burns (Cushendall Golf Club) 85 90 
176 Paul Kelly (Glasson Golf Club) 97 79, Jack Liston (Black Bush) 94 82, Darragh Smith (Castle) 94 82, Alex Murray (Island) 91 85, Andrew Glass (Castlerock Golf Club) 90 86 

177 Aaron Howard (Palmerstown Stud) 93 84, Jack Shellard (Lisburn Golf Club) 91 86, Glenn Fry (Carrickmines Golf Club) 90 87, Jordan McDonald (St. Anne's) 89 88 

178 Jack Montgomery (Fintona Golf Club) 94 84, Colm Beakey (Galway Bay Golf Club) 90 88 

179 James Bohan (Kinsale) 97 82 

181 Danny Mcgarvey (Cruit Island Golf Club) 94 87, Christopher Charlton (Dungannon Golf Club) 90 91 

187 Thomas Gracey (Dunmurry) 101 86, John Moore (Royal Portrush Golf Club) 89 98 

192 Seamus Og O'Neill (Co. Cavan Golf Club) 98 94 

198 Eoin Aherne (Mallow Golf Club) 103 95 

NR  Daniel Devlin (Fota Island Golf Club) 98 NR, Liam Jennings (Balmoral Golf Club) 87 NR, Ciaran Smyth (Greenore Golf Club) 87 NR, Dale Baker (Downpatrick Golf Club) NR, David Knox (Foyle) NR, Danny Madden (Dungannon Golf Club) NR, Kevin Power (Kilkenny Golf Club) 85 DQ, Luke Flynn (Dun Laoghaire Golf Club) 84 DQ, Graham Curry (Faughan Valley Golf Club) 83 DQ 

92 Ciaran McCabe (Dungannon Golf Club) 92,  

93 Conor Rice (Athlone Golf Club) 93 

94 Joseph Rafferty (Castle Hume Golf Club) 94 

96 Marco Deane (Malone) 96