For an East Lothian local, it proved another 'Good' day on day three of the Scottish Boys Championship at Dunbar - and he has set his sights on taking the scalp of the top seed today.

Brodie Good, son of Gullane's head professional, Alasdair, moved menacingly into the last-32 of the SGU's flagship junior event thanks to a 3&2 win over Dylan Smith from Deeside.

The four handicapper, aged 16, is playing in his first Scottish Boys and certainly showing no signs of fear as he prepares to meet the top seed, Cawder's Calum Fyfe.

Fyfe, last year's Scottish Hydro Boys Order of Merit winner, has made fairly comfortable progress as he seeks to emulate recent past champions in Ewen Ferguson and Bradley Neil.

But with his dad looking forward to the Aberdeen Asset Management Scottish Open visiting Gullane for the first time in July, Good is keen to give him something else to smile about.

When asked about facing Fyfe, Loretto pupil Good said with relish: "Perfect. I'm starting to take my golf more seriously now, because at school I also do hockey, cricket and rugby. I'll give it a go against Calum."

For Fyfe, the event already appears to be moving in his favour, given the second seed, Murray Naysmith (Marriott Dalmahoy), was a surprise loser in round two to Longniddry's Jack Rogan at the 19th, while much-fancied Niall McMullen (Lundin) also exited a round later, losing to Graeme Gillies of Pumpherston 3&1.

"It can happen in knockout golf," said 17-year-old Fyfe, who rolled in a monster 50-foot birdie putt on the 12th in his 4&3 victory over Deeside's Benjamin Henderson. "One guy can play really well and the other is slightly off their game a bit. I'm a wee bit surprised at Murray going out but it can happen.

"I'm just trying to play my own game this week, which means trying to hit the centre of greens. There are no heroics (yet)."

Another Lothians player, Andrew Ni from Murrayfield, also confidently progressed to round four, drawing on his experiences of matchplay at his home club.

The 17-year-old, who also picks up links experience at Gullane, won the Murayfield Men's Club Championship with a 11&10 final victory last year and is perhaps one to watch. Indeed, he tied for top spot in the 'Race to Dunbar' final in 2013, the finals day event for the Stephen Gallacher Foundation.

Carnoustie's Will Porter, joint-winner of the recent SGU Junior Tour Under-18 event at Longniddry, is also into the last-32, where he faces Aran Sinclair from Bearsden.

An Anglo-Scot is also seeking to make his name, with Aaron McManus moving into the fourth round for the first time. The 17-year-old was born in Edinburgh and stayed in the capital until he was five, before his dad, Keith, took the family south to Durham due to his work commitments.

Darlington's McManus, who plays for the Durham County side, is a regular in Scottish events and is looking forward to facing Inverallochy's Marc Watt, who ousted Darren Howie from Peebles.

"I really enjoy the Scottish Boys Championship," he said. "It's definitely always on my list to play every year and I'm pleased to have got past the third round."

Rowan Carey from Auchterarder, a member of the Scotland Quads side that won the Under-16 event at Archerfield Links on Sunday, battled tiredness to also progress to the fourth round, seeing off Conor MacCallum from St Andrews 3&1.

Matthew Dalrymple from Lochwinnoch also marched on, taking the scalp of Sandy Scott (Nairn) who had impressed in his 2&1 second round win over Bathgate's Joseph Bryce.

Late in the day, Deeside's Michael Lawrie, son of 1999 Open champion Paul, continued his form - defeating Daragh Cuddihy (Gourock) in a tight match to triumph by one hole.

Scottish Boys Championship, Dunbar GC, Day 3, Rd 3 C Leith (Royal Aberdeen) bt C Dunn (Sandyhills) at 21st, W Porter (Carnoustie) bt G Dalziel (Kirkhill) 1 hole, R McCandless (Bathgate) bt A Benson (West Lothian) 2&1, A Sinclair (Bearsden) bt B Mitchell (Dunblane New) 3&2, N McMullen (Lundin) bt S Lynch (Falkirk) 1 hole, G Gillies (Pumpherston) bt E Milligan (Kilmarnock (Barassie)) 2&1, A McNaughton (Caldwell) bt R Franssen (Inverness) at 19th, L Irvine (Kirkhill) bt C Farrell (Longniddry) 1 hole, T Foster (Merchants of Edinburgh) bt C Bruce (Duff House Royal) 3&2, M McAnaw (New St Andrews) bt A Harrison (Swanston New) 5&4, J Beedie (Montrose Mercantile) bt N Watson (Kirkcudbright) 2&1, C Graham (Crieff) bt D Fair (Strathaven) 2&1, R Higgins (Loretto School) bt M McCulloch (Portpatrick Dunskey) 1 hole, J Stewart (Old Course Ranfurly Ltd) bt J Cummings (Uphall) 5&4, R Watson (Muckhart) bt J McMorris (East Kilbride) 1 hole, A Bendall (Castle Douglas) bt S Nicholson (Ladybank) 3&2, G MacIntosh (Mannings Heath) bt J Thomas (Irvine) at 19th, A Ni (Murrayfield) bt G Munro (Reay) 6&5, A Gibson (Blairgowrie) bt S Roger (Cruden Bay) 3&1, K Reid (Balmore) bt C Giffen (Dunfermline) 5&3, R Carey (Auchterarder) bt F Laird (Glenbervie) 3&2, C MacCallum (St Andrews) bt C Cameron (Ayr Belleisle) 20th, K Bowman (New St Andrews) bt C Richmond (Cowal) 4&3, A Thomson (Lanark) bt P McHugh (Calderbraes) 5&3, R Kemsley (Balmore Ltd) bt S Cook (Kilmarnock (Barassie)) 5&4, J Torrance (Drumpellier) bt C Steedman (Mapperley) 1 hole, A Chalk (Castle Douglas) bt J Williams (Sandyhills) 2 holes, K McVicar (East Kilbride) bt A Hall (Kilspindie) 4&3, E McIntosh (Murrayfield) bt D Henderson (Musselburgh) 4&3, C Docherty (Turnhouse) bt A Moir (Elgin) 1 hole, M Rickard (Cupar) bt C McLean (Kilmarnock (Barassie)) 1 hole, G Tait (Ipswich) bt M Ronald (East Kilbride) 2&1

K Cantley (Liberton) bt J Beatt (Fereneze) 3&1, G Brown (Cathkin Braes) bt B Bannerman (Strathmore) 2&1, S Scott (Nairn) bt J Bryce (Bathgate) 2&1, M Dalrymple (Lochwinnoch) bt G Miller (Forres) 5&4, C Burns (Balmore) bt S Goodfellow (Hayston) 6&5, A Smith (Edzell) bt F Lawrie (Lochwinnoch) 4&2, M Lawrie (Deeside) bt D Burt (Bellshill) 1 hole, D Cuddihy (Gourock) bt L Mowbray (Bathgate) 4&3, M Napier (Turnhouse) bt G Cessford (Lundin) 2&1, G Greer (Carluke) bt S McLeod (Kinross) 3&2, L Reid (Longniddry) bt K Harker (Torphins) 1 hole

A Simpson (Strathmore) bt B McNaught (Longniddry) 4&3, C Curran (Harburn) bt S Murray (Falkirk) 2 holes, R Morrison (Windlesham) bt D Grant (Downfield) at 19th, G Burrett (Haggs Castle) bt G Fitzsimmons (Windyhill) 4&3, R Callan (Bathgate) bt S Locke (Banchory) 1 hole, R Brown (Dunfermline) bt L Black (Bruntsfield Links Golfing Society) 6&5, J Rogan (Longniddry) bt M Naysmith (Marriott Dalmahoy) at 19th, C Duffton (Torphins) bt R Barbour (Dumfries & Galloway) 3&1, C Allison (Bathgate) bt R Muir (Kilmarnock (Barassie)) 5&4, B Good (Gullane) bt D Smith (Deeside) 3&2 C Fyfe (Cawder) bt B Henderson (Deeside) 4&3, M Watt (Inverallochy) bt D Howie (Peebles) 2&1, A McManus (Darlington) bt C Jones (Greenock) 7&6, J Paterson (New GC St Andrews) bt F McKenna (Royal Aberdeen) 2 holes, C Black (Cardross) bt C Leith (Royal Aberdeen) 1 hole, Porter bt D Shaft (Glenrothes) 5&4, Sinclair bt McCandless 2&1, Gillies bt McMullen 3&1, Irvine bt McNaughton 5&3, Foster bt McAnaw 2 holes, Graham bt Beedie 2 holes, Higgins bt Stewart 1 hole, Watson bt Bendall 2&1, Ni bt McIntosh 4&3, Reid bt Gibson 5&4, Carey bt MacCallum 3&1, Thomson bt Bowman 5&4, Kemsley bt Torrance 6&5, Chalk bt McVicar 4&3, McIntosh bt Docherty 4&3, Rickard bt Tait 2&1,

Cantley bt Brown 4&3, Dalrymple bt Scott 3&2, Smith bt Burns at 22nd, Lawrie bt Cuddihy 1 hole, Napier bt Greer 5&3, Reid bt Simpson 19th, Curran bt Morrison 5&4, Callan bt Burrett 2&1, Rogan bt Brown 2&1, Duffton bt Allison 2&1