The Protectors goals came from Shi Jia Yi, who scored a brace, Qiu Li and Firdaus Idros.
The Bulls sole reply was from Chang Jo Yoon.
In other matches, champions Etoile FC also showcased their championship creditability by crushing Balestier Khalsa 4-0 in a match they barely broke a sweat while dwellers Woodlands Wellington finally won a match as they defeated Courts Young Lions 2-1 .
The French side goals were from Maxime Belouet, Theo Raymond and a brace from Jonathan Toto.
The Cubs goal was from Fazli Ayob while the Rams goals came from Goh Swee Swee and Leonardo Alexio.
Zakariah Nerani (GK), Jaslee Hatta (C), Hamqaamal Shah, Jeremy Chiang, Obadin Aikhena, Walid Lounis (Zulkiffli Hassim), Tengku Mushadad, Aloysius Yap, Kwon Jin Sung (Shafuan Sutohmoh), Chang Jo Yoon (Fareez Farhan), Park Kang Jin
Lionel Lewis (GK), Kenji Arai, Juma'at Jantan, Valery Hiek, Shi Jiayi (C), Nor Azli Yusoff, Isa Halim (Sufian Anuar), Firdaus Kasman (Firdaus Idros), Kim Dae Eui, Frederic Mendy, Qiu Li
Ahmadulhaq Che Omar (GK), Anaz Hadee, Lim Young Woo, Paul Cunningham (C), K Sathiaraj, Ishak Zainol, Ridhwan Osman, Shamsurin Abd Rahman (Vitor Borges), Nurhilmi Jasni, Andrew Tan, Kim Young Kwang (Armanizam Dolah)
Courts Young LionsIzwan Mahbud (GK), Afiq Yunos, Irwan Shah, Shakir Hamzah, Fazli Ayob, Eugene Luo, Izzdin Shafiq, Hariss Harun (C), Faris Ramli (Safirul Sulaiman), Nazrul Ahmad Nazari (Eddie Chang), Syafiq Zainal (Zulfahmi Arifin)
Amos Boon (GK),Munier Raychouni, Graham Tatters, Farhan Zakaria (Sahairi Ramri), Syed Karim (Darrel Tan), Jalal, Ali Imran Lomri, Sazali Salleh (C), Han Yiguang, Goh Swee Swee, Nigel Vanu (Leonardo Alexio)