| 1399.3 | 1379 | 20 | 20 | Roos, J (Justin) | | NBR | 1549.3 | 1543.6 | Dr. Kenneth Kaunda Saamtrek 2023 (U14) | 4 | 2023-02-04 | S | B | 0 | 0.28 | -0.28 | -4.6 | 0.27 | -0.27 | -5.4 |
| 1399.3 | 1379 | 20 | 20 | Roos, J (Justin) | | NBR | 1549.3 | 1543.6 | One For The Ages 2023 (U14) | 5 | 2023-02-18 | S | B | 1 | 0.28 | 0.72 | 12 | 0.27 | 0.73 | 14.6 |
| 1309.8 | 1294.2 | 20 | 20 | Roos, J (Justin) | | NBR | 1362.9 | 1347 | One For The Ages 2022 (U12) | 3 | 2022-07-16 | S | B | 0 | 0.4 | -0.4 | -6.6 | 0.4 | -0.4 | -8 |
| 1334.3 | 1313.7 | 20 | 20 | Roos, J (Justin) | | NBR | 1499.1 | 1487.6 | Bojanala SAJCC Trials - Session 2 of 3 2021 (C) | 4 | 2021-11-13 | S | B | 0 | 0.27 | -0.27 | -4.5 | 0.26 | -0.26 | -5.2 |
| 1366 | 1350.5 | 20 | 20 | Roos, J (Justin) | | NBR | 1516 | 1508.1 | NC Open 2021 (C) | 2 | 2021-10-23 | S | W | 0 | 0.37 | -0.37 | -6.2 | 0.36 | -0.36 | -7.2 |
| 1379.5 | 1366.5 | 20 | 20 | Roos, J (Justin) | | NBR | 1507.2 | 1496.6 | Back to the Board 2021 (U12) | 3 | 2021-04-17 | S | W | 0 | 0.39 | -0.39 | -6.5 | 0.39 | -0.39 | -7.8 |
| 1389.9 | 1379.9 | 20 | 20 | Roos, J (Justin) | | NBR | 1426.3 | 1417.1 | Hoerskool Brits Toernooi 2020 (U10) | 5 | 2020-03-14 | S | B | 0 | 0.42 | -0.42 | -7 | 0.41 | -0.41 | -8.2 |
| 1345.3 | 1328.1 | 20 | 20 | Roos, J (Justin) | | NBR | 1422.6 | 1413.3 | Laerskool Proteapark 2020 (B) | 3 | 2020-02-29 | S | B | 0 | 0.37 | -0.37 | -6.1 | 0.36 | -0.36 | -7.2 |
| 1345.3 | 1328.1 | 20 | 20 | Roos, J (Justin) | | NBR | 1422.6 | 1413.3 | Lebone II 2020 (U10) | 5 | 2020-02-15 | S | W | 0 | 0.45 | -0.45 | -7.5 | 0.44 | -0.44 | -8.8 |
| 1457.3 | 1441.2 | 20 | 20 | Roos, J (Justin) | | NBR | 1379.7 | 1358.4 | NW Open 2019 (U10) | 4 | 2019-10-12 | S | W | 0 | 0.63 | -0.63 | -10.5 | 0.64 | -0.64 | -12.8 |
| 1457.3 | 1441.2 | 20 | 20 | Roos, J (Justin) | | NBR | 1379.7 | 1358.4 | Inter Region 2019 (U10 Open) | 3 | 2019-10-19 | S | W | 0 | 0.63 | -0.63 | -10.5 | 0.64 | -0.64 | -12.8 |
| 1233.5 | 1240.4 | 20 | 20 | Roos, J (Justin) | | NBR | 1200 | 1200 | Hoerskool Brits 2018 (U8) | 5 | 2018-03-17 | S | W | 1 | 0.58 | 0.42 | 7 | 0.59 | 0.41 | 8.2 |
