Sean McGoldrick and Jacob Robinson produced resounding victories on the Mo Prior & MTK Global co-promotion in Cardiff.
Former Commonwealth Games champion McGoldrick (10-1) returned from his surprise maiden career defeat with a ruthless fourth-round stoppage win at Vale Sports Arena.
The Jamie Moore-trained bantamweight felled Stefan Slavchev (11-38-2) multiple times before halting the Bulgarian and said afterwards: “I enjoyed being back in there.
“A massive thank you to Jamie Moore and Nigel Travis for all they’ve done for me these last few months. This is just the start of where we’re going!”
The 28-year-old Welshman was outpointed by Thomas Essomba (9-5) in August last year when challenging for the WBA Continental bantamweight title, live on Sky Sports.
McGoldrick already has his next fight date booked for May 9 at the Motorpoint Arena in Cardiff on the undercard of Lee Selby vs George Kambosos Jr.
The undefeated Robinson (8-0) also impressed with a convincing points victory over Stanislav Bilohurov (0-2-1) to move to 8-0, 2 KOs.