| Wkt |
| 2 | 289 | [unknown] & [unknown] | Sri Lanka Young Cricketers v England Young Cricketers | The Royal and Sun Alliance County Ground, Bristol | 1986 |
| 5 | 210 | PN Silva (172) & WMK Bandara (121) | Sri Lanka Under-19s v South Africa Under-19s | Welagedara Stadium, Kurunegala | 2016 |
| 8 | 188 | KBU Fernando (100*) & AKV Tyrone (123) | Sri Lanka Under-19s v India Under-19s | Welagedara Stadium, Kurunegala | 2013 |
| 5 | 178 | [unknown] & [unknown] | Sri Lanka Young Cricketers v England Young Cricketers | Trent Bridge, Nottingham | 1986 |
| 3 | 166 | PBB Rajapaksa (129) & AKKY Lanka (213) | Sri Lanka Under-19s v England Under-19s | P Sara Oval, Colombo | 2010/11 |
| 6 | 165 | MDKJ Perera (114*) & RJI Udayanga (78) | Sri Lanka Under-19s v Bangladesh Under-19s | Bir Shrestha Shahid Flight Lieutenant Motiur Rahman Stadium, Khulna | 2009 |
| 6 | 161 | MUCP Mendis (53*) & RS Kaluwitharana (119) | Sri Lanka Young Cricketers v England Young Cricketers | Galle International Stadium, Galle | 1986/87 |
| 3 | 160 | SDL Daniel (155) & PB Pathiraja (55) | Sri Lanka Under-19s v England Under-19s | The Incora County Ground, Derby | 2022 |
| 6 | 158 | [unknown] & [unknown] | Sri Lanka Under-19s v Pakistan Under-19s | Quaid-e-Azam Park, Karachi | 2004/05 |
| 3 | 158 | PBB Rajapaksa (149) & AKKY Lanka (80) | Sri Lanka Under-19s v England Under-19s | Galle International Stadium, Galle | 2010/11 |
| 2 | 156 | [unknown] & [unknown] | Sri Lanka Under-19s v Australia Under-19s | Melbourne Cricket Ground, Melbourne | 1983/84 |
| 5 | 150 | [unknown] & [unknown] | Sri Lanka Young Cricketers v England Young Cricketers | The Royal and Sun Alliance County Ground, Bristol | 1986 |
| 8 | 140 | RWMGA Ratnayake (119) & RD Abeydeera (33) | Sri Lanka Under-19s v Pakistan Under-19s | Welagedara Stadium, Kurunegala | 2003 |
| 1 | 140 | WU Tharanga (61) & HE Vithana (114) | Sri Lanka Under-19s v Pakistan Under-19s | Multan Cricket Stadium, Multan | 2004/05 |
| 6 | 140 | D Thissakuttige (70*) & L Abeyratne (97) | Sri Lanka Under-19s v England Under-19s | Galle International Stadium, Galle | 2010/11 |
| 4 | 137 | A Wanninayake (132) & RM Somarathne (65) | Sri Lanka Under-19s v England Under-19s | The Cloud County Ground, Chelmsford | 2022 |
| 7 | 129 | M Pushpakumara (135) & KS Lokuarachchi (63) | Sri Lanka Under-19s v England Under-19s | County Ground, Northampton | 2000 |
| 1 | 129 | LD Chandimal (184) & MDUS Jayasundera (55) | Sri Lanka Under-19s v Bangladesh Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2009 |
| 7 | 128 | NACP Rodrigo (86) & JL Jayaratne (64) | Sri Lanka Under-19s v Australia Under-19s | Colombo Cricket Club Ground, Colombo | 1984/85 |
| 5 | 128 | DPS Sooriyabandara (115) & GS Dinusha (51) | Sri Lanka Under-19s v India Under-19s | Mahinda Rajapaksha International Cricket Stadium, Hambantota | 2018 |
| 2 | 122 | ND Paranavithana (79) & RVPK Mishara (52) | Sri Lanka Under-19s v Bangladesh Under-19s | FTZ Sports Complex (Board of Investment), Katunayake | 2018/19 |
| 2 | 120 | DM de Silva (84) & PBB Rajapaksa (149) | Sri Lanka Under-19s v England Under-19s | Galle International Stadium, Galle | 2010/11 |
| 2 | 116 | A Liyanaarachchi (49) & SDL Daniel (155) | Sri Lanka Under-19s v England Under-19s | The Incora County Ground, Derby | 2022 |
| 8 | 114 | D Kalupahana (150*) & V Thewmika (35) | Sri Lanka Under-19s v West Indies Under-19s | Rangiri Dambulla International Stadium, Dambulla | 2023 |
| 3 | 113 | LD Chandimal (143) & SMA Priyanjan (68) | Sri Lanka Under-19s v India Under-19s | Asgiriya Stadium, Kandy | 2007 |
| 1 | 113* | LD Chandimal (55*) & MDUS Jayasundera (58*) | Sri Lanka Under-19s v Bangladesh Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2009 |
| 4 | 113 | GS Dinusha (58) & ND Perera (67) | Sri Lanka Under-19s v Bangladesh Under-19s | Abdur Rab Serniabad Stadium, Barisal | 2019/20 |
| 2 | 112 | DM Jayalath (77*) & KIC Asalanka (70) | Sri Lanka Under-19s v England Under-19s | FP Fenner's Ground, Cambridge | 2016 |
| 2 | 110 | [unknown] & [unknown] | Sri Lanka Under-19s v Bangladesh Under-19s | Colts Cricket Club Ground, Colombo | 2007 |
| 7 | 110 | KHRA de Silva (74) & WVV Ranpul (65) | Sri Lanka Under-19s v England Under-19s | The Incora County Ground, Derby | 2022 |
