Brook gave as good as he got for the duration of the entertaining bout, but Golovkin just had too much power.
‘GGG’ keeps a firm grip on his Middleweight belts, although he took some good shots from Brook before eventually gaining the win.
Stuart Hall looked for all the world to have reclaimed his old IBF Bantamweight title with a dogged performance against Lee Haskins.
Hall, visibly the bigger man, seemed to wear down the champion in the second half of the fight but somehow lost out on the scorecards 117-111, 116-112, and 115-113.
Haskins made the first successful defense of the strap won by default after Randy Caballero failed weight.
Judges obviously favored Haskins’ flashier skills over Hall’s determination as the Bristol man moved to 34-3.
In the first world title fight of the night, Charlie Edwards fell short after being stalked and taken out in ten by IBF Flyweight titleholder John Riel Casimero.
Fighting in just his ninth contest, Edwards looked like a boy fighting a man at times and couldn’t live with Casimero at this point.
Martin J. Ward is the new British super-featherweight champion after halting Andy Townend in the eighth. Callum Smith took his time before retaining his WBC Silver super-Middleweight belt with a sixth-round retirement of Norbert Nemesapati.
Conor Benn powered his way to winning number four by brushing aside Joe Suckered in two rounds before Paul Smith Jr scoring a fifth-round stoppage against Daniel Regi.
Super Bantamweight contender Gavin McDonnell made it 19 bouts undefeated with a hard-fought eight-round points win over Robin Zamora, whilst Craig Richards made it five on the spin like a pro with a six-round decision versus Dalton Miller.
In the opener, 122-pound rival Kid Galahad improved to 21-0 with a fourth-round stoppage of Emiliano Salvini.
