| 222 | NRM Thain (88) & H Shaikh (126) | England Under-19s v Bangladesh Under-19s | Chukkapalli Pitchaiah Cricket Ground, Mulapadu | 2023/24 |
| 221 | WU Tharanga (104) & CK Kapugedera (131) | Sri Lanka Under-19s v Pakistan Under-19s | National Stadium, Karachi | 2004/05 |
| 221 | GL Cloete (115*) & AJN Price (135) | South Africa Under-19s v Zimbabwe Under-19s | Harare Sports Club, Harare | 2010 |
| 206 | A Raghuvanshi (144) & R Bawa (162*) | India Under-19s v Uganda Under-19s | Brian Lara Stadium, Tarouba | 2021/22 |
| 204 | SK Rasheed (94) & Y Dhull (110) | India Under-19s v Australia Under-19s | Coolidge Cricket Ground, Coolidge | 2021/22 |
| 189 | Sohail Ahmed (117*) & Shahid Yousuf (112) | Pakistan Under-19s v Bangladesh Under-19s | National Stadium, Karachi | 2003/04 |
| 189 | Haseebullah Khan (135) & Irfan Khan (75) | Pakistan Under-19s v Zimbabwe Under-19s | Diego Martin Sporting Complex, Diego Martin | 2021/22 |
| 183 | SB Harper (103) & PC Page (99) | Australia Under-19s v New Zealand Under-19s | ICC Cricket Academy Ground No 2, Dubai | 2015/16 |
| 180 | VH Zol (100) & SV Samson (100) | India Under-19s v Pakistan Under-19s | Sharjah Cricket Association Stadium, Sharjah | 2013/14 |
| 180 | OJ Peake (111) & S Hogan (104) | Australia Under-19s v India Under-19s | Cricket Association Puducherry Siechem Ground, Puducherry | 2024/25 |
| 179 | Pinak Ghosh (109) & Nazmul Hossain (79) | Bangladesh Under-19s v West Indies Under-19s | Zohur Ahmed Chowdhury Stadium, Chittagong | 2015/16 |
| 178 | J van Schalkwyk (215) & J Rowles (76) | South Africa Under-19s v Zimbabwe Under-19s | Sunrise Sports Club, Harare | 2025 |
| 177 | [unknown] & [unknown] | Pakistan Under-19s v Australia Under-19s | Deakin Reserve, Shepparton | 1997/98 |
| 177 | MDKJ Perera (86) & SMA Priyanjan (92) | Sri Lanka Under-19s v England Under-19s | Kinrara Academy Oval, Kuala Lumpur | 2006/07 |
| 175* | [unknown] & [unknown] | Kenya Under-19s v Scotland Under-19s | Soweto Cricket Oval, Soweto | 1997/98 |
| 171 | [unknown] & [unknown] | Pakistan Under-19s v India Under-19s | Vidarbha Cricket Association Ground, Nagpur | 1989/90 |
| 168 | CJ Simmons (155) & SE Marsh (125) | Australia Under-19s v Kenya Under-19s | Carisbrook, Dunedin | 2001/02 |
| 168 | PBB Rajapaksa (154*) & MLR Buddika (57) | Sri Lanka Under-19s v Australia Under-19s | Gardens Oval, Darwin | 2009/10 |
| 166 | EJG Morgan (117) & KJ O'Brien (70) | Ireland Under-19s v Uganda Under-19s | MA Aziz Stadium, Chittagong | 2003/04 |
| 164* | AN Cook (108*) & SR Patel (102*) | England Under-19s v New Zealand Under-19s | Bangabandhu National Stadium, Dhaka | 2003/04 |
| 163 | Sami Aslam (110) & Shayan Jahangir (85) | Pakistan Under-19s v England Under-19s | Trent Bridge, Nottingham | 2013 |
| 162 | Shadman Islam (86) & Mosaddek Hossain (110*) | Bangladesh Under-19s v England Under-19s | London Road, Sleaford | 2013 |
| 160 | J Dorne (56) & JEZ Johnson (105) | West Indies Under-19s v Sri Lanka Under-19s | Rangiri Dambulla International Stadium, Dambulla | 2023 |
| 159* | JM Dickson (78*) & TH Tector (76*) | Ireland Under-19s v Zimbabwe Under-19s | Queen's Park Oval, Port of Spain | 2021/22 |
| 158 | Shan Masood (90) & Umar Amin (98) | Pakistan Under-19s v Australia Under-19s | Roy Henzell Oval, Caloundra | 2006/07 |
| 156 | KA Simmons (166) & AS Athanaze (87) | West Indies Under-19s v Canada Under-19s | Bert Sutcliffe Oval, Lincoln | 2017/18 |
| 156 | Musheer Khan (118) & UP Saharan (75) | India Under-19s v Ireland Under-19s | Mangaung Oval, Bloemfontein | 2023/24 |
| 153 | [unknown] & [unknown] | Pakistan Under-19s v Sri Lanka Under-19s | National Bank of Pakistan Sports Complex, Karachi | 2023/24 |
| 152 | [unknown] & [unknown] | India Under-19s v Pakistan Under-19s | Bagh-e-Jinnah, Lahore | 2006/07 |
| 152 | BR Parsons (84) & LJ Beaufort (85) | South Africa Under-19s v United Arab Emirates Under-19s | Mangaung Outdoor Centre, Bloemfontein | 2019/20 |
| 151 | Numan Shah (116) & Sohail Khan (52) | Afghanistan Under-19s v Sri Lanka Under-19s | Tolerance Oval, Abu Dhabi | 2022/23 |
| 150 | [unknown] & [unknown] | Australia Young Cricketers v ICC Associates Young Cricketers | Wentworth Oval, Wentworth | 1987/88 |
| 150 | [unknown] & [unknown] | India Under-19s v South Africa Under-19s | Karnail Singh Stadium, Delhi | 1995/96 |
| 150 | SB Harper (67) & JR Doran (102) | Australia Under-19s v England Under-19s | Murdoch University West Oval, Perth | 2014/15 |
| 148 | LR Johnson (83) & JN Mohammed (76*) | West Indies Under-19s v South Africa Under-19s | P Saravanamuttu Stadium, Colombo | 2005/06 |
| 148 | GT Hankins (98) & GA Bartlett (85) | England Under-19s v Sri Lanka Under-19s | The Essex County Ground, Chelmsford | 2016 |
| 143* | SR Watson (100*) & AB McDonald (63*) | Australia Under-19s v Namibia Under-19s | P Saravanamuttu Stadium, Colombo | 1999/00 |
| 142 | RP Hewage (83) & LPC Silva (85) | Sri Lanka Under-19s v South Africa Under-19s | Kingsmead, Durban | 1997/98 |
| 142 | DR Mousley (111) & JA Haynes (68) | England Under-19s v Sri Lanka Under-19s | Willowmoore Park Main Oval, Benoni | 2019/20 |
| 141 | Anamul Haque (101) & Asif Ahmed (84) | Bangladesh Under-19s v Sri Lanka Under-19s | Allan Border Field, Brisbane | 2012 |
| 141 | JD Christensen (101) & R van Tonder (79) | South Africa Under-19s v Sri Lanka Under-19s | Wally Wilson Oval, Rondebosch | 2016/17 |
| 141 | M Clayton (92) & MWG Harvey (54*) | Australia Under-19s v New Zealand Under-19s | Peter Burge Oval, Brisbane | 2019 |
| 140* | BC Hollioake (59*) & A Flintoff (72*) | England Under-19s v Zimbabwe Under-19s | County Ground, Southampton | 1997 |
| 139 | SE Marsh (70) & CL White (80*) | Australia Under-19s v New Zealand Under-19s | Bert Sutcliffe Oval, Lincoln | 2001/02 |
| 137* | Imran Nazir (95*) & Hasan Raza (64*) | Pakistan Under-19s v South Africa Under-19s | Gaddafi Stadium, Lahore | 1998/99 |
| 137 | JD Hall (75) & PR Stirling (59) | Ireland Under-19s v Bermuda Under-19s | Johor Cricket Academy Oval, Johor | 2007/08 |
| 137 | CP Jewell (80) & JR Doran (69) | Australia Under-19s v England Under-19s | The 3aaa County Ground, Derby | 2015 |
| 136 | DP Sibley (84) & EG Barnard (53) | England Under-19s v South Africa Under-19s | Sahara Park Newlands, Cape Town | 2012/13 |
| 136 | Mahmudul Hasan (81) & Towhid Hridoy (75*) | Bangladesh Under-19s v England Under-19s | College Ground, Cheltenham | 2019 |
| 135 | Zawad Abrar (113) & Rizan Hossan (82) | Bangladesh Under-19s v Sri Lanka Under-19s | Colombo Cricket Club Ground, Colombo | 2024/25 |
| 134 | RN de Silva (65) & SB Waduge (56) | Sri Lanka Under-19s v West Indies Under-19s | Rangiri Dambulla International Stadium, Dambulla | 2023 |
| 133 | FW McCann (174) & CWJ Allison (46) | England Under-19s v Sri Lanka Under-19s | The 1st Central County Ground, Hove | 2024 |
| 132 | LD Chandimal (112*) & MDKJ Perera (55) | Sri Lanka Under-19s v England Under-19s | Sinhalese Sports Club Ground, Colombo | 2007/08 |
| 132 | Amit Majumder (102) & Anamul Haque (38) | Bangladesh Under-19s v Sri Lanka Under-19s | Shere Bangla National Stadium, Mirpur | 2009 |
| 132 | WRR de Silva (85) & RVPK Mishara (87) | Sri Lanka Under-19s v Pakistan Under-19s | Mahinda Rajapaksha International Cricket Stadium, Hambantota | 2019 |
| 131 | S Dhawan (155*) & SK Raina (90) | India Under-19s v Scotland Under-19s | Bangabandhu National Stadium, Dhaka | 2003/04 |
| 131 | GS Ballance (53) & KO Meth (91) | Zimbabwe Under-19s v Sri Lanka Under-19s | Sinhalese Sports Club Ground, Colombo | 2005/06 |
| 130* | DA Hendricks (75*) & CN Ackermann (64*) | South Africa Under-19s v United States of America Under-19s | Queenstown Events Centre, Queenstown | 2009/10 |
| 130* | HC Brook (59*) & WG Jacks (73*) | England Under-19s v Namibia Under-19s | Queenstown Events Centre, Queenstown | 2017/18 |
| 129 | [unknown] & [unknown] | Papua New Guinea Under-19s v England Under-19s | Lincoln Green, Lincoln | 2001/02 |
| 129 | GJ Roulston (82) & K Hilton (72) | Ireland Under-19s v New Zealand Under-19s | Mangaung Oval, Bloemfontein | 2023/24 |
| 128* | Mahmudul Hasan (103*) & Towhid Hridoy (51*) | Bangladesh Under-19s v New Zealand Under-19s | Bert Sutcliffe Oval, Lincoln | 2019/20 |
| 127 | AR Keath (64) & JS Floros (96) | Australia Under-19s v South Africa Under-19s | Queenstown Events Centre, Queenstown | 2009/10 |
| 126 | MW Hill (124) & SPD Smith (39) | Australia Under-19s v Namibia Under-19s | Penang Sports Club, Penang | 2007/08 |
| 126 | Anmolpreet Singh (56) & SN Khan (84) | India Under-19s v England Under-19s | R Premadasa Stadium, Colombo | 2015/16 |
| 126 | Azan Awais (105) & Saad Baig (51) | Pakistan Under-19s v Bangladesh Under-19s | Zohur Ahmed Chowdhury Stadium, Chittagong | 2022/23 |
| 125 | HS Amarasinghe (71) & RM Somarathne (81) | Sri Lanka Under-19s v England Under-19s | County Ground, New Road, Worcester | 2022 |
| 125* | Azan Awais (105*) & Saad Baig (68*) | Pakistan Under-19s v India Under-19s | ICC Cricket Academy Ground, Dubai | 2023/24 |
