| Runs |
Out of |
4s |
6s |
| 76 | 142 | 16 | 2 | | SJ Swanepoel | Namibia Under-19s v Scotland Under-19s | Eden Park Outer Oval, Auckland | 2001/02 |
| 70 | 114 | 13 | 3 | | L Louwrens | Namibia Under-19s v Kenya Under-19s | Lincoln No 3, Lincoln | 2017/18 |
| 40 | 56 | 10 | 0 | | DH Botha | Namibia Under-19s v Australia Under-19s | Penang Sports Club, Penang | 2007/08 |
| 40 | 52 | 10 | 0 | | N Davin | Namibia Under-19s v Scotland Under-19s | Sheikh Kamal International Cricket Stadium, Cox's Bazar | 2015/16 |
| 36 | 67* | 9 | 0 | | SJ Loftie-Eaton | Namibia Under-19s v Scotland Under-19s | Sheikh Kamal International Cricket Stadium, Cox's Bazar | 2015/16 |
| 36 | 58* | 9 | 0 | | L Louwrens | Namibia Under-19s v South Africa Under-19s | Sheikh Kamal International Cricket Stadium No 2 Ground, Cox's Bazar | 2015/16 |
| 36 | 62 | 9 | 0 | | L Louwrens | Namibia Under-19s v Ireland Under-19s | Lincoln No 3, Lincoln | 2017/18 |
| 36 | 69 | 9 | 0 | | JW Visagie | Namibia Under-19s v Scotland Under-19s | Willowmoore Park Main Oval, Benoni | 2023/24 |
| 34 | 62 | 7 | 1 | | BO van Rooi | Namibia Under-19s v New Zealand Under-19s | Hagley Oval, Christchurch | 2001/02 |
| 32 | 49 | 8 | 0 | | SJ Swanepoel | Namibia Under-19s v Canada Under-19s | Colin Maiden Park No 2, Auckland | 2001/02 |
| 32 | 58 | 8 | 0 | | PJ Grove | Namibia Under-19s v United States of America Under-19s | Sinhalese Sports Club Ground, Colombo | 2005/06 |
| 32 | 60* | 8 | 0 | | R van Schoor | Namibia Under-19s v Malaysia Under-19s | Johor Cricket Academy Oval, Johor | 2007/08 |
| 32 | 84 | 8 | 0 | | MG Erasmus | Namibia Under-19s v Afghanistan Under-19s | Sheikh Zayed Stadium Nursery 2, Abu Dhabi | 2013/14 |
| 38 | 73 | 5 | 3 | | J Coetzee | Namibia Under-19s v Canada Under-19s | ICC Cricket Academy Ground No 2, Dubai | 2013/14 |
| 36 | 55 | 6 | 2 | | E van Wyk | Namibia Under-19s v Bangladesh Under-19s | Bert Sutcliffe Oval, Lincoln | 2017/18 |
| 30 | 69 | 6 | 1 | | P Burger | Namibia Under-19s v Kenya Under-19s | Air Force Ground, Katunayake | 1999/00 |
| 32 | 48 | 5 | 2 | | LP van der Westhuizen | Namibia Under-19s v Australia Under-19s | Penang Sports Club, Penang | 2007/08 |
| 30 | 55* | 6 | 1 | | DH Botha | Namibia Under-19s v Malaysia Under-19s | Johor Cricket Academy Oval, Johor | 2007/08 |
| 28 | 46 | 7 | 0 | | GM Lottering | Namibia Under-19s v Ireland Under-19s | Lincoln No 3, Lincoln | 2017/18 |
| 24 | 61 | 6 | 0 | | DH Botha | Namibia Under-19s v India Under-19s | R Premadasa Stadium, Colombo | 2005/06 |
| 24 | 55* | 6 | 0 | | DH Botha | Namibia Under-19s v Scotland Under-19s | Colombo Cricket Club Ground, Colombo | 2005/06 |
| 26 | 43 | 5 | 1 | | JB Wessells | Namibia Under-19s v Australia Under-19s | Sheikh Zayed Stadium, Abu Dhabi | 2013/14 |
| 26 | 57 | 5 | 1 | | MB Kruger | Namibia Under-19s v Canada Under-19s | ICC Cricket Academy Ground No 2, Dubai | 2013/14 |
| 26 | 33 | 5 | 1 | | N Davin | Namibia Under-19s v India Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2015/16 |
| 26 | 59 | 5 | 1 | | L Louwrens | Namibia Under-19s v Nepal Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2015/16 |
| 20 | 31 | 5 | 0 | | BL Kotze | Namibia Under-19s v New Zealand Under-19s | LC de Villiers Oval, Pretoria | 1997/98 |
| 22 | 70 | 4 | 1 | | JM van der Merwe | Namibia Under-19s v Ireland Under-19s | Moors Sports Club Ground, Colombo | 1999/00 |
| 22 | 53* | 4 | 1 | | M Durant | Namibia Under-19s v Canada Under-19s | Colin Maiden Park No 2, Auckland | 2001/02 |
| 20 | 43 | 5 | 0 | | M Greeff | Namibia Under-19s v Zimbabwe Under-19s | Lincoln No 3, Lincoln | 2001/02 |
| 20 | 31 | 5 | 0 | | JP Nel | Namibia Under-19s v Zimbabwe Under-19s | Lincoln No 3, Lincoln | 2001/02 |
| 20 | 56 | 5 | 0 | | DH Botha | Namibia Under-19s v United States of America Under-19s | Sinhalese Sports Club Ground, Colombo | 2005/06 |
| 20 | 78 | 5 | 0 | | RAH Pitchers | Namibia Under-19s v Zimbabwe Under-19s | Sheikh Zayed Stadium Nursery 2, Abu Dhabi | 2013/14 |
| 20 | 32 | 5 | 0 | | J Julius | Namibia Under-19s v Scotland Under-19s | Sheikh Zayed Stadium, Abu Dhabi | 2013/14 |
| 20 | 29 | 5 | 0 | | JB Wessells | Namibia Under-19s v Scotland Under-19s | Sheikh Zayed Stadium, Abu Dhabi | 2013/14 |
| 20 | 39* | 5 | 0 | | ZE Green | Namibia Under-19s v Scotland Under-19s | Sheikh Kamal International Cricket Stadium, Cox's Bazar | 2015/16 |
| 22 | 58 | 4 | 1 | | M van Lingen | Namibia Under-19s v Nepal Under-19s | Khan Shaheb Osman Ali Stadium, Fatullah | 2015/16 |
| 20 | 32 | 5 | 0 | | E van Wyk | Namibia Under-19s v Canada Under-19s | Bert Sutcliffe Oval, Lincoln | 2017/18 |
| 20 | 30 | 5 | 0 | | J Linde | Namibia Under-19s v Kenya Under-19s | Lincoln No 3, Lincoln | 2017/18 |
| 20 | 29 | 5 | 0 | | ZRJ van Vuuren | Namibia Under-19s v Australia Under-19s | De Beers Diamond Oval, Kimberley | 2023/24 |
| 20 | 86 | 5 | 0 | | ZRJ van Vuuren | Namibia Under-19s v Scotland Under-19s | Willowmoore Park Main Oval, Benoni | 2023/24 |
