- Promotion: Ringstar Boxing
- Title: “Roar of Singapore IV: The Night of Champions IV”
- Venue: Singapore Indoor Stadium, Kallang, Singapore
- Date: April 20, 2018
PRELIMINARY CARD
1. Marcus Tuhumuri (Indonesia) vs Darryl “Oathbraker” Kho (Singapore)
- DIVISION: Middleweight
- WINNER: DARRYL KHO
- METHOD: Unanimous Decision
- ROUNDS: 4
- REFEREE: David Craig
2. Sachdev Singh (Malaysia) vs Nate Masters (Australia)
- DIVISION: Light Heavyweight
- WINNER: NATE MASTERS
- METHOD: Majority Decision
- ROUNDS: 4
- REFEREE:
3. Beibei Fan (China) vs Rucira Pratita (Indonesia)
- DIVISION: Catchweight
- WINNER: RUCIRA PRATITA
- METHOD: Unanimous Decision
- ROUNDS: 1
- REFEREE:
4. Richie Richardson (Ireland) vs Robert Sindinger (Austria)
- DIVISION: 85 kg
- WINNER: RICHIE RICHARDSON
- METHOD: Unanimous Decision
- ROUNDS: 3
5. Oliver Wood (England) vs Patrick Bowe (United Kingdom)
- DIVISION: 85 kg
- WINNER: PATRICK BOWE
- METHOD: Unanimous Decision
- ROUNDS: 3
6. Wayne Yen (Canada) vs Mohammad Shah (Singapore)
- DIVISION: 64 kg
- WINNER: WAYNE YEN
- METHOD: Referee Stoppage
- ROUNDS: 1:06 of Round 3
MAIN CARD
7. Efasha Karamudin (Singapore) vs Sumalee Tongpootorn (Thailand)
- DIVISION: Super Flyweight
- WINNER: EFASHA KARAMUDIN
- METHOD: Technical Knockout
- TIME AND ROUND:
8. Alexandrew “Nightmare” David (Singapore) vs Keng Fai (Malaysia)
- DIVISION: Catchweight
- WINNER: N/A
- METHOD: Draw
- ROUNDS: 6
9. Chase “Hellboy” Haley (New Zealand) vs Mirage Khan (Malaysia)
- DIVISION: WBC Asia Continental Light Heavyweight Championship
- WINNER: MIRAGE KHAN
- METHOD: Unanimous Decision
- ROUNDS: 12
- SUPERVISOR: Montree Verapravati
CO-MAIN EVENT
10. Michael “Gloves on Fire” Dasmarinas (Philippines) vs Karim Guerfi (France)
- DIVISION: IBO Bantamweight Championship
- WINNER: MICHAEL DASMARINAS
- METHOD: Knockout
- TIME AND ROUND: 0:40 of Round 4
- SUPERVISOR: Steve Scott
MAIN EVENT
11. Muhamad “The Chosen Wan” Ridhwan (Singapore) vs Jeson “Dynamite Fist” Umbal (Philippines)
- DIVISION: IBO Intercontinental
- WINNER: MUHAMAD RIDHWAN
- METHOD: Majority Decision (117-111, 116-112, 114-114)
- ROUNDS: 12
- SUPERVISOR: Steve Scott

