Stadium: Quadra Central Round: 26 Ground: Clay
| Challenger Brasilia MD | 2021/11/25 19:15 | Darderi/Olivieri v Castelnuovo/Nikles | 6-3,6-2 |
| Challenger Brasilia MD | 2021/11/23 18:30 | Castelnuovo/Nikles v Vervoort/Zeballos | 7-5,7-5 |
| Challenger Ambato MD | 2021/09/23 15:00 | Castelnuovo/Nikles v Esteve Lobato/Roca Batalla | 3-6,2-6 |
| Challenger Quito MD | 2021/09/15 19:25 | Castelnuovo/Nikles v Merino/Ore | 4-6,6-3,6-10 |
| ITF Japan F7 MD | 2017/06/07 05:15 | Castelnuovo/Nikles v Fukuda/Sasai | 4-6,4-6 |
| ITF Japan F6 MD | 2017/05/31 03:00 | Matsui/Rungkat v Castelnuovo/Nikles | 6-2,7-5 |
| ITF Japan F6 MD | 2017/05/30 06:40 | Castelnuovo/Nikles v Noguchi/Sumizawa | 6-1,7-6 |
| ITF Turkey F17 MD | 2016/04/26 15:30 | Castelnuovo/Nikles v Celikbilek/Suluoglu | 6-3,4-6,4-10 |