Luke McCormackโs cut left eye reopened against Adam Cope but the GB boxer took the win on points. Lukeโs finals opponent will be Jack Wood, who beat Ryan Fillingham in a scrappy affair.
Twin Pat McCormack (both box for Birtley) made the light-welter decider by beating Darren Richardson in a cagey battle, while in the other 64 semis southpaw Alfie Price had too much skill for Daniel Wright.
Welterweight produced a shock as Birtley portsider Cyrus Pattinson eliminated Commonwealth Games gold medallist Scott Fitzgerald via unanimous decision after three good rounds to earn a finals showdown with reigning champion Conor Loftus, who outworked Kelvin Fawaz in a rugged battle.
The dayโs first stoppage came at middleweight when Troy Williamson hit too hard for Ryszard Lewicki stopping him in round two. Also into the final is Jack Flatley, a unanimous victor over Dan Woledge in a bout that saw both men cut.
At light-heavyweight Joshua Buatsi was too strong for Bryce Goodridge and now meets Ashley Vanzie, who outworked southpaw Matthew Tinker in a punch-up.
Michael McKay reached the heavyweight decider by wearing down Adam Simpson, while also at 91 Ricardo Slue repeated a club show win by outboxing Gary Daley.
Frazer Clarke continued his pursuit of the super-heavyweight title with a hard-fought win over Joshua Quailey and now in the final meets Natty Ngwenya, who outlasted Declan Fusco in a gruelling encounter.
Going by what weโve seen here in Liverpool, these are BNโs finals picks. 49: Maphosa. 52: Ali. 56: McGrail. 60: L. McCormack. 64: P. McCormack. 69: Loftus. 75: Williamson. 81: Buatsi. 91: Slue. 91&: Clarke.
RESULTS:
MALE: 49: Joe Maphosa (Middlesbrough/1) outpd Andew Winter (Shildon) unan, Sonny Edwards (Steel City/3) outpd Galal Yafai (Birmingham Police/2) split.
52: Blane Hyland (Salisbury/2) outpd Shamim โShakaโ Khan (Army/3) unan, Muhammad Ali (Bury/1) outpd Louie Lynn (Lynn AC) unan.
56: Peter McGrail (Everton Red Triangle/1) outpd Chris Bourke (Balham) unan, Callum French (Birtley/3) outpd Marcel Braithwaite (Golden Gloves) unan.
60: Luke McCormack (Birtley/1) outpd Adam Cope (Gus Robinsons) unan, Jack Wood (Wednesbury) outpd Ryan Fillingham (Army/2) unan.
64: Pat McCormack (Birtley/1) outpd Darren Richardson (East Durham) unan, Alfie Price (Hoddesdon/2) outpd Daniel Wright (Centurions) unan.
69: Cyrus Pattinson (Birtley) outpd Scott Fitzgerald (Larches & Savick/1) unan, Conor Loftus (Burmantofts/2) outpd Kelvin Fawaz (All Stars/3) split.
75: Troy Williamson (Darlington/1) stpd Riszard Lewicki (Sheffield City) 2nd, Jack Flatley (Halliwell) outpd Daniel Woledge (St Maryโs) unan.
81: Joshua Buatsi (South Norwood & Victory/1) outpd Bryce Goodridge (Basingstoke) unan,
Ashley Vanzie (Platinum/3) outpd Matthew Tinker (Dale Youth) unan.
91: Michael McKay (Hook & Jab) outpd Adam Simpson (Larches & Savick) unan, Ricardo Slue (Fitzroy Lodge) outpd Gary Daley (Southend) unan.
91&: Frazer Clarke (Burton/1) outpd Joshua Quailey (Melton Mowbray) unan, Natty Ngwenya (Army) outpd Declan Fusco (South Durham) unan.
FEMALE: 48: Demi-Jade Retzen (New Astley) outpd Jade Winfarrah (Grimsby BA) unan, Tanya Dady (Earlsfield) outpd Kerry Anne Aaron (Army) unan.
51: Kim Shannon (2nd City) outpd Beccy McMullin (Plympton) unan.
54: Jenna OโReilly (Lynn) outpd Kirsty Hall (Grimsby BA) unan.
60: Chantelle Cameron (Far Cotton/1) outpd Hatty Nylon (Hebden Bridge) unan, Sophie Colebourne (North Mersey) outpd Alana Murphy (Army) unan.
64: Cherrelle Brown (Islington/1) outpd Megan Reid ((Army) unan, Oriance Lungu (Haringey Police Community/2) outpd Csilla Csejtei (Felbridge) unan.
69: Stacey Copeland (Bredbury & Stockport/1) outpd Paige Murney (Leicester Unity) unan, Stephanie Rowe (Army) stpd Gemma Smith (Derby City) 3rd.