| Inns | HS |
| 307-6 | 69 | West Indies Under-19s v Denmark Under-19s | St Alban's College Ground, Pretoria | 1997/98 |
| 303-8 | 68 | West Indies Under-19s v Nigeria Under-19s | Country Club B Field, Kimberley | 2019/20 |
| 289-4 | 93 | West Indies Under-19s v Canada Under-19s | Sheikh Zayed Stadium Nursery 1, Abu Dhabi | 2013/14 |
| 281-6 | 55* | West Indies Under-19s v Ireland Under-19s | Bert Sutcliffe Oval, Lincoln | 2017/18 |
| 275-6 | 84* | West Indies Under-19s v Zimbabwe Under-19s | Sheikh Zayed Stadium, Abu Dhabi | 2013/14 |
| 272-6 | 65 | West Indies Young Cricketers v ICC Associates Young Cricketers | Wentworth Oval, Wentworth | 1987/88 |
| 267-9 | 52 | West Indies Under-19s v Australia Under-19s | Dubai Sports City Stadium, Dubai | 2011 |
| 267-7 | 86* | West Indies Under-19s v England Under-19s | De Beers Diamond Oval, Kimberley | 2019/20 |
| 265-8 | 83 | West Indies Under-19s v Ireland Under-19s | Khulna Divisional Stadium, Khulna | 2003/04 |
| 258-8 | 90 | West Indies Under-19s v Sri Lanka Under-19s | Port Trust Golden Jubilee Stadium, Visakhapatnam | 2011/12 |
| 257 | 92* | West Indies Under-19s v Pakistan Under-19s | Fitzherbert Park, Palmerston North | 2009/10 |
| 257-4 | 89 | West Indies Under-19s v Zimbabwe Under-19s | Harare Sports Club, Harare | 2017 |
| 254-8 | 53 | West Indies Under-19s v Pakistan Under-19s | National Stadium, Karachi | 2005/06 |
| 253 | 80 | West Indies Under-19s v Sri Lanka Under-19s | Rangiri Dambulla International Stadium, Dambulla | 2023 |
| 250-9 | 56 | West Indies Under-19s v Sri Lanka Under-19s | Conaree Sports Club, Conaree | 2021/22 |
| 249-6 | 72 | West Indies Under-19s v England Under-19s | Bangabandhu National Stadium, Dhaka | 2003/04 |
| 249-8 | 55 | West Indies Under-19s v Bangladesh Under-19s | Fitzherbert Park, Palmerston North | 2009/10 |
| 246-9 | 55 | West Indies Young Cricketers v England Young Cricketers | Old Trafford, Manchester | 1978 |
| 245-6 | 70 | West Indies Young Cricketers v England Young Cricketers | Kensington Oval, Bridgetown | 1984/85 |
| 240-8 | 65 | West Indies Under-19s v Bangladesh Under-19s | Albion Sports Complex, Albion | 2013/14 |
| 238 | 57 | West Indies Under-19s v Australia Under-19s | Sinhalese Sports Club Ground, Colombo | 2005/06 |
| 238 | 99 | West Indies Under-19s v New Zealand Under-19s | Willowmoore Park Main Oval, Benoni | 2019/20 |
| 237 | 54 | West Indies Under-19s v New Zealand Under-19s | Endeavour Park, Townsville | 2012 |
| 236-9 | 64 | West Indies Young Cricketers v New Zealand Young Cricketers | Wentworth Oval, Wentworth | 1987/88 |
| 234-8 | 77 | West Indies Under-19s v Zimbabwe Under-19s | Witrand Cricket Field, Potchefstroom | 1997/98 |
| 234-6 | 83 | West Indies Under-19s v Zimbabwe Under-19s | Nondescripts Cricket Club Ground, Colombo | 1999/00 |
| 233-8 | 92* | West Indies Under-19s v New Zealand Under-19s | Bay Oval, Mount Maunganui | 2017/18 |
| 232-7 | 61 | West Indies Under-19s v Sri Lanka Under-19s | De Beers Diamond Oval, Kimberley | 2023/24 |
| 230-7 | 62* | West Indies Under-19s v Bangladesh Under-19s | Shere Bangla National Stadium, Mirpur | 2015/16 |
| 230 | 80 | West Indies Under-19s v England Under-19s | Polo Farm Sports Club, Canterbury | 2021 |
