| 164 | Umair Masood (113) & Salman Fayyaz (58*) | Pakistan Under-19s v West Indies Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2015/16 |
| 160 | Ali Asad (69) & Riaz Kail (84) | Pakistan Under-19s v Australia Under-19s | R Premadasa Stadium, Colombo | 2005/06 |
| 153 | D Elgar (79) & C Kieswetter (80) | South Africa Under-19s v United States of America Under-19s | P Saravanamuttu Stadium, Colombo | 2005/06 |
| 152 | KAR Hodge (80*) & JP Greaves (90) | West Indies Under-19s v Sri Lanka Under-19s | Port Trust Golden Jubilee Stadium, Visakhapatnam | 2011/12 |
| 139 | PBB Rajapaksa (130) & L Abeyratne (46) | Sri Lanka Under-19s v England Under-19s | Colts Cricket Club Ground, Colombo | 2010/11 |
| 129 | DB Das (66*) & PP Chawla (54) | India Under-19s v South Africa Under-19s | Andhra Cricket Association-Visakhapatnam District Cricket Association Stadium, Visakhapatnam | 2005/06 |
| 128 | [unknown] & [unknown] | Pakistan Under-19s v England Under-19s | National Stadium, Karachi | 1996/97 |
| 125 | AR Beadle (54) & SNJ O'Keefe (65) | Australia Under-19s v Bangladesh Under-19s | Fatullah Khan Saheb Osmani Stadium, Fatullah | 2003/04 |
| 120 | Y Rao (77) & SM Joseph (58) | Canada Under-19s v Papua New Guinea Under-19s | Sheikh Zayed Stadium Nursery 2, Abu Dhabi | 2013/14 |
| 118 | JM Garrett (52) & JS Floros (70) | Australia Under-19s v India Under-19s | Western Australia Cricket Association Ground, Perth | 2008/09 |
| 117 | J Andrew (130) & N Sealy (33) | West Indies Under-19s v South Africa Under-19s | JB Marks Cricket Oval, Potchefstroom | 2023/24 |
| 115* | SF Khan (69*) & AS Roy (43*) | India Under-19s v England Under-19s | The SSE SWALEC Stadium, Cardiff | 2017 |
| 113 | MC Henriques (85*) & BGW Gledhill (40) | Australia Under-19s v India Under-19s | Punjab Cricket Association Stadium, Mohali | 2005/06 |
| 112 | DA Warner (56) & PJ Wells (50) | Australia Under-19s v India Under-19s | Himachal Pradesh Cricket Association Stadium, Dharamsala | 2005/06 |
| 112 | HS Bhatia (56) & Zahid Ali (98) | India Under-19s v South Africa Under-19s | Lincoln No 3, Lincoln | 2009/10 |
| 108* | [unknown] & [unknown] | Denmark Under-19s v Namibia Under-19s | New Wanderers No 3 Oval, Johannesburg | 1997/98 |
| 105 | DJ Redfern (59) & BC Brown (93*) | England Under-19s v Pakistan Under-19s | Colts Cricket Club Ground, Colombo | 2007/08 |
| 103 | Umar Waheed (43*) & Mohammad Nawaz (66) | Pakistan Under-19s v Afghanistan Under-19s | John Blanck Oval, Maroochydore | 2012 |
| 102* | AS Athanaze (110*) & BO Barnes (37*) | West Indies Under-19s v Sri Lanka Under-19s | Bert Sutcliffe Oval, Lincoln | 2017/18 |
| 102 | RM Somarathne (57) & DN Wellalage (68) | Sri Lanka Under-19s v England Under-19s | Sinhalese Sports Club Ground, Colombo | 2021/22 |
| 101* | CN Kent (105*) & N Boge (55*) | Papua New Guinea Under-19s v Afghanistan Under-19s | Allan Border Field, Brisbane | 2012 |
| 101 | Najibullah Zadaran (83) & Afsar Zazai (42) | Afghanistan Under-19s v Scotland Under-19s | Allan Border Field, Brisbane | 2012 |
| 101 | KA Anderson (86*) & NRJ Young (66) | West Indies Under-19s v England Under-19s | De Beers Diamond Oval, Kimberley | 2019/20 |
| 100 | Mahmudul Hasan (82*) & Sabbir Rahman (42) | Bangladesh Under-19s v Sri Lanka Under-19s | Rangiri Dambulla International Stadium, Dambulla | 2009/10 |
