| 6 | 5 | 17 | 12 | 5 | 8 (4ct 4st) | 3.4 |
| ICC Under-19 World Cup (in New Zealand), 2001/02 |
| 6 | 5 | 17 | 12 | 5 | 8 (4ct 4st) | 3.4 |
| Sri Lanka Under-19s tour of New Zealand, 2001/02 |
| 5 | 5 | 16 | 11 | 5 | 5 (4ct 1st) | 3.2 |
| Sri Lanka Under-19s tour of Bangladesh, 2007/08 |
| 5 | 5 | 16 | 11 | 5 | 5 (4ct 1st) | 3.2 |
| Sri Lanka Under-19s in Bangladesh Youth ODI Series, 2007/08 |
| 8 | 8 | 16 | 10 | 6 | 4 (2ct 2st) | 2 |
| ICC Under-19 World Cup (in Sri Lanka), 1999/00 |
| 6 | 6 | 14 | 4 | 10 | 4 (2ct 2st) | 2.333 |
| ICC Under-19 World Cup (in South Africa), 1997/98 |
| 6 | 6 | 14 | 4 | 10 | 4 (2ct 2st) | 2.333 |
| Sri Lanka Under-19s tour of South Africa, 1997/98 |
| 7 | 7 | 14 | 10 | 4 | 4 (1ct 3st) | 2 |
| Quadrangular Under-19 Series (India) (Australia Under-19s, India Under-19s, Sri Lanka Under-19s, West Indies Under-19s in India), 2011/12 |
| 7 | 7 | 14 | 10 | 4 | 4 (1ct 3st) | 2 |
| Sri Lanka Under-19s tour of India, 2011/12 |
| 5 | 5 | 12 | 5 | 7 | 5 (4ct 1st) | 2.4 |
| ICC Under-19 World Cup (in Malaysia), 2007/08 |
| 5 | 5 | 12 | 5 | 7 | 5 (4ct 1st) | 2.4 |
| Sri Lanka Under-19s tour of Malaysia, 2007/08 |
| 5 | 5 | 12 | 9 | 3 | 4 (3ct 1st) | 2.4 |
| Sri Lanka Under-19s tour of Bangladesh, 2009 |
| 5 | 5 | 12 | 9 | 3 | 4 (3ct 1st) | 2.4 |
| Sri Lanka Under-19s in Bangladesh Youth ODI Series, 2009 |
| 5 | 4 | 11 | 11 | 0 | 4 (4ct 0st) | 2.75 |
| Sri Lanka Under-19s tour of England, 2010 |
| 5 | 4 | 11 | 11 | 0 | 4 (4ct 0st) | 2.75 |
| Sri Lanka Under-19s in England Youth ODI Series, 2010 |
| 5 | 5 | 11 | 8 | 3 | 4 (2ct 2st) | 2.2 |
| Sri Lanka Under-19s tour of Australia, 2009/10 |
| 5 | 5 | 11 | 8 | 3 | 4 (2ct 2st) | 2.2 |
| Sri Lanka Under-19s in Australia Youth ODI Series, 2009/10 |
| 6 | 3 | 10 | 9 | 2 | 4 (4ct 0st) | 3.333 |
| Sri Lanka Under-19s tour of South Africa, 2016/17 |
| 5 | 4 | 9 | 10 | 1 | 3 (2ct 1st) | 2.25 |
| Sri Lanka Under-19s tour of Bangladesh, 2013 |
| 5 | 4 | 9 | 10 | 1 | 3 (2ct 1st) | 2.25 |
| Sri Lanka Under-19s in Bangladesh Youth ODI Series, 2013 |
| 5 | 5 | 9 | 8 | 1 | 3 (3ct 0st) | 1.8 |
| ICC Under-19 World Cup (in New Zealand), 2009/10 |
| 5 | 5 | 9 | 8 | 1 | 3 (3ct 0st) | 1.8 |
| Sri Lanka Under-19s tour of New Zealand, 2009/10 |
| 5 | 5 | 9 | 8 | 1 | 3 (3ct 0st) | 1.8 |
| Bangladesh Under-19s tour of Sri Lanka, 2014/15 |
| 5 | 5 | 9 | 8 | 1 | 3 (3ct 0st) | 1.8 |
| Bangladesh Under-19s in Sri Lanka Youth ODI Series, 2014/15 |
| 6 | 6 | 9 | 8 | 1 | 3 (3ct 0st) | 1.5 |
| ICC Under-19 World Cup (in Australia), 2012 |
| 6 | 6 | 9 | 8 | 1 | 3 (3ct 0st) | 1.5 |
| Sri Lanka Under-19s tour of Australia, 2012 |
| 1 | 1 | 8 | 4 | 4 | 8 (4ct 4st) | 8 |
| Zimbabwe Under-19s tour of New Zealand, 2001/02 |
| 2 | 2 | 8 | 4 | 4 | 6 (2ct 4st) | 4 |
| Australia Under-19s tour of Sri Lanka, 2013/14 |
| 2 | 2 | 8 | 4 | 4 | 6 (2ct 4st) | 4 |
| Australia Under-19s in Sri Lanka Youth ODI Series, 2013/14 |
| 3 | 3 | 8 | 5 | 3 | 4 (2ct 2st) | 2.666 |
| Tri-Nation Under-19s Tournament in Sri Lanka, 2007 |
| 4 | 4 | 8 | 3 | 5 | 3 (1ct 2st) | 2 |
| ICC Under-19 World Cup (in South Africa), 2019/20 |
| 4 | 4 | 8 | 3 | 5 | 3 (1ct 2st) | 2 |
| Sri Lanka Under-19s tour of South Africa, 2019/20 |
| 6 | 6 | 8 | 6 | 2 | 5 (5ct 0st) | 1.333 |
| ICC Under-19 World Cup (in Bangladesh), 2015/16 |
| 6 | 6 | 8 | 6 | 2 | 5 (5ct 0st) | 1.333 |
| Sri Lanka Under-19s tour of Bangladesh, 2015/16 |
| 6 | 6 | 8 | 2 | 6 | 3 (1ct 2st) | 1.333 |
| Afro-Asia Cup Under-19s (Bangladesh Under-19s, India Under-19s, Pakistan Under-19s, South Africa Under-19s, Sri Lanka Under-19s, Zimbabwe Under-19s in India), 2005/06 |
| 6 | 6 | 8 | 6 | 2 | 3 (2ct 1st) | 1.333 |
| ICC Under-19 World Cup (in Sri Lanka), 2005/06 |
| 6 | 6 | 8 | 2 | 6 | 3 (1ct 2st) | 1.333 |
| Sri Lanka Under-19s tour of India, 2005/06 |
| 4 | 3 | 7 | 6 | 1 | 3 (3ct 0st) | 2.333 |
| Sri Lanka Under-19s tour of Pakistan, 2001/02 |
| 4 | 3 | 7 | 6 | 1 | 3 (3ct 0st) | 2.333 |
| Sri Lanka Under-19s in Pakistan Youth ODI Series, 2001/02 |
| 3 | 3 | 7 | 4 | 3 | 3 (3ct 0st) | 2.333 |
| Sri Lanka Under-19s tour of Australia, 1983/84 |
| 3 | 3 | 7 | 4 | 3 | 3 (3ct 0st) | 2.333 |
| Sri Lanka Under-19s in Australia Youth ODI Series, 1983/84 |
| 3 | 3 | 7 | 5 | 2 | 5 (4ct 1st) | 2.333 |
| Tri-Nation Under-19s Tournament in South Africa, 2009/10 |
| 3 | 3 | 7 | 5 | 2 | 5 (4ct 1st) | 2.333 |
| Sri Lanka Under-19s tour of South Africa, 2009/10 |
| 4 | 4 | 7 | 5 | 2 | 4 (3ct 1st) | 1.75 |
| India Under-19s tour of Sri Lanka, 2018 |
| 4 | 4 | 7 | 5 | 2 | 4 (3ct 1st) | 1.75 |
| India Under-19s in Sri Lanka Youth ODI Series, 2018 |
| 5 | 5 | 7 | 5 | 2 | 3 (2ct 1st) | 1.4 |
| ICC Under-19 World Cup (in South Africa), 2023/24 |
| 5 | 5 | 7 | 5 | 2 | 3 (2ct 1st) | 1.4 |
| Sri Lanka Under-19s tour of South Africa, 2023/24 |
| 9 | 7 | 7 | 6 | 1 | 2 (1ct 1st) | 1 |
| Sri Lanka Under-19s tour of South Africa, 2016/17 |
| 7 | 7 | 7 | 4 | 3 | 3 (3ct 0st) | 1 |
| Bangladesh Under-19s Tri-Nation Tournament (Bangladesh Under-19s, England Under-19s, Sri Lanka Under-19s), 2005/06 |
| 7 | 7 | 7 | 4 | 3 | 3 (3ct 0st) | 1 |
| Sri Lanka Under-19s tour of Bangladesh, 2005/06 |
| 3 | 2 | 6 | 5 | 2 | 3 (2ct 1st) | 3 |
| Tri-Nation Under-19s Tournament in South Africa, 2016/17 |
| 2 | 2 | 6 | 2 | 4 | 4 (1ct 3st) | 3 |
| Australia Under-19s tour of India, 2011/12 |
| 3 | 3 | 6 | 5 | 1 | 4 (4ct 0st) | 2 |
| ICC Under-19 World Cup (in New Zealand), 2017/18 |
| 3 | 3 | 6 | 5 | 1 | 4 (4ct 0st) | 2 |
| Sri Lanka Under-19s tour of New Zealand, 2017/18 |
| 3 | 3 | 6 | 2 | 4 | 3 (2ct 1st) | 2 |
| India Under-19s tour of Sri Lanka, 1996/97 |
| 3 | 3 | 6 | 2 | 4 | 3 (2ct 1st) | 2 |
| India Under-19s in Sri Lanka Youth ODI Series, 1996/97 |
| 4 | 4 | 6 | 3 | 3 | 3 (2ct 1st) | 1.5 |
| England Under-19s tour of Sri Lanka, 2021/22 |
| 4 | 4 | 6 | 3 | 3 | 3 (2ct 1st) | 1.5 |
| England Under-19s in Sri Lanka Youth ODI Series, 2021/22 |
| 4 | 4 | 6 | 5 | 1 | 3 (3ct 0st) | 1.5 |
| Asia Under-19 Tournament (Bangladesh Under-19s, India Under-19s, Pakistan Under-19s, Sri Lanka Under-19s in Pakistan), 2003/04 |
| 4 | 4 | 6 | 5 | 1 | 3 (3ct 0st) | 1.5 |
| Sri Lanka Under-19s tour of Pakistan, 2003/04 |
| 5 | 5 | 6 | 5 | 1 | 3 (2ct 1st) | 1.2 |
| England Under-19s tour of Sri Lanka, 2010/11 |
| 5 | 5 | 6 | 5 | 1 | 3 (2ct 1st) | 1.2 |
| England Under-19s in Sri Lanka Youth ODI Series, 2010/11 |
| 5 | 5 | 6 | 6 | 0 | 2 (2ct 0st) | 1.2 |
| Sri Lanka Under-19s tour of Pakistan, 2023/24 |
| 5 | 5 | 6 | 6 | 0 | 2 (2ct 0st) | 1.2 |
| Sri Lanka Under-19s in Pakistan Youth ODI Series, 2023/24 |
| 7 | 7 | 6 | 3 | 3 | 2 (1ct 1st) | 0.857 |
| Tri-Nation Under-19s Tournament in West Indies, 2019/20 |
| 7 | 7 | 6 | 3 | 3 | 2 (1ct 1st) | 0.857 |
| Sri Lanka Under-19s tour of West Indies, 2019/20 |
| 1 | 1 | 5 | 4 | 1 | 5 (4ct 1st) | 5 |
| Australia Under-19s tour of Malaysia, 2007/08 |
| 1 | 1 | 5 | 5 | 0 | 5 (5ct 0st) | 5 |
| India Under-19s tour of Bangladesh, 2015/16 |
| 2 | 2 | 5 | 2 | 3 | 4 (2ct 2st) | 2.5 |
| Bangladesh Under-19s tour of Sri Lanka, 2007 |
| 3 | 3 | 5 | 4 | 1 | 4 (3ct 1st) | 1.666 |
| Sri Lanka Under-19s tour of England, 2022 |
| 3 | 3 | 5 | 4 | 1 | 4 (3ct 1st) | 1.666 |
| Sri Lanka Under-19s in England Youth ODI Series, 2022 |
| 3 | 3 | 5 | 5 | 0 | 3 (3ct 0st) | 1.666 |
| Tri-Nation Under-19s Tournament in Sri Lanka, 2009/10 |
| 3 | 3 | 5 | 4 | 1 | 3 (2ct 1st) | 1.666 |
| Bangladesh Under-19s tour of Sri Lanka, 2021/22 |
| 3 | 3 | 5 | 4 | 1 | 3 (2ct 1st) | 1.666 |
| Bangladesh Under-19s in Sri Lanka Youth ODI Series, 2021/22 |
| 3 | 3 | 5 | 2 | 3 | 2 (2ct 0st) | 1.666 |
| Sri Lanka Under-19s tour of England, 2016 |
| 3 | 3 | 5 | 2 | 3 | 2 (2ct 0st) | 1.666 |
| Sri Lanka Under-19s in England Youth ODI Series, 2016 |
| 4 | 4 | 5 | 4 | 1 | 2 (2ct 0st) | 1.25 |
| Tri-Nation Under-19s Tournament in Sri Lanka, 2015/16 |
| 4 | 4 | 5 | 4 | 1 | 2 (1ct 1st) | 1.25 |
| Sri Lanka Under-19s tour of India, 1998/99 |
| 4 | 4 | 5 | 4 | 1 | 2 (1ct 1st) | 1.25 |
| Sri Lanka Under-19s in India Youth ODI Series, 1998/99 |
| 5 | 4 | 5 | 2 | 3 | 2 (0ct 2st) | 1.25 |
| McDonald's Bicentennial Youth World Cup (in Australia), 1987/88 |
| 5 | 4 | 5 | 2 | 3 | 2 (0ct 2st) | 1.25 |
| Sri Lanka Young Cricketers tour of Australia, 1987/88 |
| 5 | 5 | 5 | 2 | 3 | 3 (2ct 1st) | 1 |
| ICC Under-19 World Cup (in West Indies), 2021/22 |
| 5 | 5 | 5 | 2 | 3 | 3 (2ct 1st) | 1 |
| Sri Lanka Under-19s tour of West Indies, 2021/22 |
| 6 | 5 | 5 | 5 | 0 | 1 (1ct 0st) | 1 |
| Tri-Nation Under-19s Tournament in South Africa, 2016/17 |
| 5 | 5 | 5 | 3 | 2 | 3 (2ct 1st) | 1 |
| Pakistan Under-19s tour of Sri Lanka, 2019 |
| 5 | 5 | 5 | 3 | 2 | 3 (2ct 1st) | 1 |
| Pakistan Under-19s in Sri Lanka Youth ODI Series, 2019 |
| 6 | 6 | 5 | 3 | 2 | 1 (1ct 0st) | 0.833 |
| Sri Lanka Under-19s tour of Malaysia, 2006/07 |
| 3 | 1 | 4 | 4 | 0 | 4 (4ct 0st) | 4 |
| Sri Lanka Under-19s in South Africa Youth ODI Series, 2016/17 |
| 1 | 1 | 4 | 4 | 0 | 4 (4ct 0st) | 4 |
| Pakistan Under-19s tour of New Zealand, 2017/18 |
| 1 | 1 | 4 | 4 | 0 | 4 (4ct 0st) | 4 |
| Pakistan Under-19s tour of New Zealand, 2001/02 |
| 1 | 1 | 4 | 2 | 2 | 4 (2ct 2st) | 4 |
| Zimbabwe Under-19s tour of South Africa, 1997/98 |
| 1 | 1 | 4 | 2 | 2 | 4 (2ct 2st) | 4 |
| England Under-19s tour of Sri Lanka, 1999/00 |
| 4 | 1 | 4 | 4 | 1 | 4 (3ct 1st) | 4 |
| West Indies Under-19s tour of Sri Lanka, 2003/04 |
| 4 | 1 | 4 | 4 | 1 | 4 (3ct 1st) | 4 |
| West Indies Under-19s in Sri Lanka Youth ODI Series, 2003/04 |
| 1 | 1 | 4 | 0 | 4 | 4 (0ct 4st) | 4 |
| Australia Under-19s tour of Sri Lanka, 1984/85 |
| 1 | 1 | 4 | 0 | 4 | 4 (0ct 4st) | 4 |
| Australia Under-19s in Sri Lanka Youth ODI Series, 1984/85 |
| 2 | 2 | 4 | 2 | 2 | 3 (2ct 1st) | 2 |
| Sri Lanka Young Cricketers tour of England, 1986 |
| 2 | 2 | 4 | 2 | 2 | 3 (2ct 1st) | 2 |
| Sri Lanka Young Cricketers in England Youth ODI Series, 1986 |
| 2 | 2 | 4 | 3 | 1 | 3 (2ct 1st) | 2 |
| ICC Under-19 World Cup (in United Arab Emirates), 2013/14 |
| 2 | 2 | 4 | 3 | 1 | 3 (2ct 1st) | 2 |
| Sri Lanka Under-19s tour of United Arab Emirates [Feb-Mar 2014], 2013/14 |