| 123* | CA Thyssen (100*) & WC Hantam (71*) | South Africa Under-19s v England Under-19s | County Ground, Chelmsford | 2003 |
| 108 | [unknown] & [unknown] | England Under-19s v South Africa Under-19s | County Ground, Taunton | 1995 |
| 107 | [unknown] & [unknown] | England Under-19s v Pakistan Under-19s | County Ground, Chelmsford | 1998 |
| 107 | [unknown] & [unknown] | Pakistan Under-19s v England Under-19s | County Ground, Chelmsford | 1998 |
| 91 | [unknown] & [unknown] | South Africa Under-19s v India Under-19s | Punjab Cricket Association Stadium, Mohali | 1995/96 |
| 90 | HS Pangalia (117) & Anmoljeet Singh (11*) | India Under-19s v Australia Under-19s | MA Chidambaram Stadium, Chepauk, Chennai | 2024/25 |
| 88 | PJ Franks (119*) & JO Grove (12) | England Under-19s v South Africa Under-19s | Gert Van Rensburg Stadium, Fochville | 1997/98 |
| 84 | [unknown] & [unknown] | Pakistan Young Cricketers v England Young Cricketers | Headingley, Leeds | 1990 |
| 83 | RJ Logan (63) & MA Wallace (27*) | England Under-19s v New Zealand Under-19s | Pukekura Park, New Plymouth | 1998/99 |
| 82 | LE Plunkett (49) & DL Broadbent (22*) | England Under-19s v Australia Under-19s | Jubilee Park, Frankston, Melbourne | 2002/03 |
| 80 | [unknown] & [unknown] | New Zealand Young Cricketers v Australia Under-19s | Manuka Oval, Canberra | 1985/86 |
| 79 | [unknown] & [unknown] | England Young Cricketers v Pakistan Young Cricketers | Headingley, Leeds | 1990 |
| 79 | JN Frylinck (33*) & K Rabada (46) | South Africa Under-19s v England Under-19s | Boland Park, Paarl | 2012/13 |
| 76 | MCA Fernando (54) & C Gunasinghe (23*) | Sri Lanka Under-19s v England Under-19s | North Marine Road, Scarborough | 2005 |
| 73 | BB McCullum (186) & TP Robin (13*) | New Zealand Under-19s v South Africa Under-19s | Bert Sutcliffe Oval, Lincoln | 2000/01 |
| 72 | TT Bresnan (33*) & ND Thornicroft (37) | England Under-19s v Australia Under-19s | St Peter's College, Adelaide | 2002/03 |
| 71 | [unknown] & [unknown] | New Zealand Under-19s v Pakistan Under-19s | Trust Bank Park, Hamilton | 1994/95 |
| 69 | [unknown] & [unknown] | India Under-19s v Pakistan Under-19s | Bahawal Stadium, Bahawalpur | 1988/89 |
| 66 | [unknown] & [unknown] | England Under-19s v West Indies Under-19s | Old Trafford, Manchester | 1993 |
| 66 | H Riazuddin (95) & NL Buck (9*) | England Under-19s v Bangladesh Under-19s | North Marine Road, Scarborough | 2009 |
| 65 | [unknown] & [unknown] | New Zealand Under-19s v Pakistan Under-19s | Trust Bank Park, Hamilton | 1994/95 |
| 65 | [unknown] & [unknown] | India Under-19s v South Africa Under-19s | Modi Stadium, Kanpur | 1995/96 |
| 63 | Hidayatullah Khan (12*) & Aamer Yousuf (49) | Pakistan Under-19s v Sri Lanka Under-19s | Nondescripts Cricket Club Ground, Colombo | 2003 |
| 61 | [unknown] & [unknown] | Pakistan Under-19s v New Zealand Under-19s | Iqbal Stadium, Faisalabad | 1993/94 |
| 59 | [unknown] & [unknown] | India Under-19s v Pakistan Under-19s | MA Chidambaram Stadium, Chepauk, Madras | 1978/79 |
| 59* | [unknown] & [unknown] | New Zealand Young Cricketers v England Young Cricketers | Old Trafford, Manchester | 1989 |
| 59 | TR Peiris (60*) & HD Niroshana (0) | Sri Lanka Under-19s v Australia Under-19s | Lilac Hill Park, Perth | 2000/01 |
| 58 | [unknown] & [unknown] | India Under-19s v South Africa Under-19s | Feroz Shah Kotla, Delhi | 1995/96 |
| 58 | DS Kulkarni (24) & I Sharma (28*) | India Under-19s v New Zealand Under-19s | Carisbrook, Dunedin | 2006/07 |
| 57 | [unknown] & [unknown] | New Zealand Under-19s v Australia Under-19s | Carisbrook, Dunedin | 1992/93 |
| 57 | TK Patel (44*) & N Aggarwal (17) | India Under-19s v England Under-19s | County Ground, Northampton | 2002 |
| 56 | [unknown] & [unknown] | England Under-19s v Australia Under-19s | Edgbaston, Birmingham | 1999 |
| 55 | [unknown] & [unknown] | Pakistan Under-19s v Australia Under-19s | Heritage Oval, Toowoomba | 1997/98 |
| 54* | HRJ Trump (50*) & L Tennant (8*) | England Young Cricketers v Sri Lanka Young Cricketers | Galle International Stadium, Galle | 1986/87 |
| 53 | [unknown] & [unknown] | Australia Under-19s v Pakistan Under-19s | Gaddafi Stadium, Lahore | 1980/81 |
| 53 | [unknown] & [unknown] | Pakistan Under-19s v India Under-19s | Bahawal Stadium, Bahawalpur | 1988/89 |
| 52 | LE Plunkett (48*) & M Parsons (24) | England Under-19s v South Africa Under-19s | Headingley, Leeds | 2003 |
| 51 | [unknown] & [unknown] | Australia Under-19s v India Under-19s | Drummoyne Oval, Sydney | 1994/95 |
| 51 | AJ Harrison (29) & ND Thornicroft (42*) | England Under-19s v South Africa Under-19s | County Ground, New Road, Worcester | 2003 |
| 50 | [unknown] & [unknown] | India Under-19s v Australia Under-19s | Moin-ul-Haq Stadium, Patna | 1984/85 |