Stadium: Cancha 8 Round: 26 Ground: Clay
| Challenger - San Luis Potosí | 2018/03/27 23:20 | Federico Coria v Pedro Sakamoto | 3-6,4-6 |
| Challenger San Luis Potosi Qual | 2018/03/26 19:35 | Pedro Sakamoto v Gonzalo Lama | 6-4,7-6 |
| Challenger San Luis Potosi Qual | 2018/03/26 00:25 | Pedro Sakamoto v Emilio Gomez | 6-2,6-2 |
| Challenger San Luis Potosi Qual | 2018/03/25 19:25 | Londero, Juan Ignacio v Pedro Sakamoto | 6-4,5-7,5-7 |
| Challenger Santiago Qual | 2018/03/03 18:35 | Pedro Sakamoto v Miljan Zekic | 2-6,6-3,6-7 |
| Sao Paulo, Brazil, Qualifying | 2018/02/25 16:10 | Pedro Sakamoto v Clezar, Guilherme | 2-6,1-6 |
| Sao Paulo, Brazil, Qualifying | 2018/02/24 17:25 | Robredo, Tommy v Pedro Sakamoto | 6-7,4-6 |
| ATP Quito Qual | 2018/02/04 17:00 | Martin, Andrej v Pedro Sakamoto | 6-4,6-4 |
| Challenger - San Luis Potosí | 2018/03/27 18:00 | Lopez Villasenor, Gerardo v Krstin, Pedja | 2-6,3-6 |
| Miami, USA, Qualifying | 2018/03/19 17:25 | Fratangelo, Bjorn v Krstin, Pedja | 4-6,6-3,6-0 |
| Irving, USA | 2018/03/14 17:00 | Krstin, Pedja v Smyczek, Tim | 4-6,3-6 |
| Challenger - Santiago | 2018/03/07 18:20 | Guido Andreozzi v Krstin, Pedja | 6-3,6-4 |
| Challenger - Santiago | 2018/03/05 16:30 | Krstin, Pedja v de Greef, Arthur | 6-3,3-6,6-0 |
| Challenger - Punta del Este | 2018/02/28 21:00 | Krstin, Pedja v Federico Gaio | 2-6,6-3,4-6 |
| Challenger - Punta del Este | 2018/02/28 01:00 | Laslo Djere v Krstin, Pedja | 3-6,6-7 |
| Challenger - Morelos | 2018/02/23 20:00 | Novikov, Dennis v Krstin, Pedja | 6-1,6-4 |