| Balls |
| 74 | Muhammed Bulbulia | South Africa Under-19s v Zimbabwe Under-19s | Harare Sports Club, Harare | 2025 |
| 86 | J van Schalkwyk | South Africa Under-19s v Zimbabwe Under-19s | Sunrise Sports Club, Harare | 2025 |
| 88 | Q de Kock | South Africa Under-19s v Zimbabwe Under-19s | Northerns-Goodwood Cricket Club Oval, Cape Town | 2011/12 |
| 89 | G van Heerden | South Africa Under-19s v Ireland Under-19s | Brian Lara Stadium, Tarouba | 2021/22 |
| 92 | M Mayet | South Africa Under-19s v Sri Lanka Under-19s | Boland Park, Paarl | 2016/17 |
| 94 | JA Bird | South Africa Under-19s v Pakistan Under-19s | City Oval, Pietermaritzburg | 2019 |
| 94 | JA Bird | South Africa Under-19s v Pakistan Under-19s | Chatsworth Stadium, Chatsworth | 2019 |
| 98 | CN Ackermann | South Africa Under-19s v India Under-19s | Bidvest Wanderers Stadium, Johannesburg | 2009/10 |
| 98 | JA Bird | South Africa Under-19s v England Under-19s | Roseworth Terrace, Gosforth | 2018 |
| 102 | Q de Kock | South Africa Under-19s v Pakistan Under-19s | Stellenbosch University Ground, Stellenbosch | 2011/12 |
| 104 | MP Breetzke | South Africa Under-19s v England Under-19s | Senwes Park, Potchefstroom | 2017/18 |
| 104 | J van Schalkwyk | South Africa Under-19s v Bangladesh Under-19s | Willowmoore Park Main Oval, Benoni | 2025 |
| 105 | MP Breetzke | South Africa Under-19s v West Indies Under-19s | City Oval, Pietermaritzburg | 2017 |
| 106 | R van Tonder | South Africa Under-19s v West Indies Under-19s | Chatsworth Stadium, Chatsworth | 2017 |
| 108 | DT Brevis | South Africa Under-19s v Uganda Under-19s | Queen's Park Oval, Port of Spain | 2021/22 |
| 109 | MG Coetzee | South Africa Under-19s v England Under-19s | Sahara Park Newlands, Cape Town | 2012/13 |
| 111 | DT Brevis | South Africa Under-19s v Bangladesh Under-19s | Coolidge Cricket Ground, Coolidge | 2021/22 |
| 113 | MP Breetzke | South Africa Under-19s v West Indies Under-19s | Chatsworth Stadium, Chatsworth | 2017 |
| 114 | J Pillay | South Africa Under-19s v West Indies Under-19s | City Oval, Pietermaritzburg | 2017 |
| 115 | AB de Villiers | South Africa Under-19s v England Under-19s | Arundel Castle Cricket Club Ground, Arundel | 2003 |
| 125 | RG Terblanche | South Africa Under-19s v Pakistan Under-19s | City Oval, Pietermaritzburg | 2019 |
| 127 | Q de Kock | South Africa Under-19s v Pakistan Under-19s | Boland Park, Paarl | 2011/12 |
| 128 | GL Cloete | South Africa Under-19s v England Under-19s | Arundel Castle Cricket Club Ground, Arundel | 2011 |
| 129 | D Foxcroft | South Africa Under-19s v New Zealand Under-19s | Sheikh Kamal International Cricket Stadium No 2 Ground, Cox's Bazar | 2015/16 |
| 131 | JD Christensen | South Africa Under-19s v Sri Lanka Under-19s | Wally Wilson Oval, Rondebosch | 2016/17 |
| 137 | DA Hendricks | South Africa Under-19s v New Zealand Under-19s | Lincoln No 3, Lincoln | 2009/10 |
| 145 | LP Smith | South Africa Under-19s v Bangladesh Under-19s | Zohur Ahmed Chowdhury Stadium, Chittagong | 2015/16 |
