Round: 44 Ground: Hardcourt outdoor
| ITF Argentina F3 | 2018/05/26 12:00 | Juan Bautista Otegui v Alberto Odiseo Alvarado Berrospi | 6-2,6-3 |
| ITF Argentina F2 | 2018/05/19 12:00 | Juan M G Paiva v Alberto Odiseo Alvarado Berrospi | 6-2,6-2 |
| ITF Argentina F1 | 2018/05/12 11:30 | Leonardo Aboian v Alberto Odiseo Alvarado Berrospi | 6-1,6-1 |
| ITF Messico F3 | 2018/05/19 15:00 | Ivar Jose Aramburu Contreras v Gage Brymer | 4-6,4-6 |
| ITF Messico F2 | 2018/05/14 16:00 | Samuel Shropshire v Ivar Jose Aramburu Contreras | 6-4,6-1 |
| ITF Messico F2 | 2018/05/12 16:00 | Rowland Phillips v Ivar Jose Aramburu Contreras | 3-6,7-5,6-7 |
| ITF Messico F1 | 2018/05/07 15:00 | Herbert Jody Maginley v Ivar Jose Aramburu Contreras | 6-1,6-4 |
| ITF Messico F1 | 2018/05/06 15:00 | Joaquin Marquez v Ivar Jose Aramburu Contreras | 6-7,4-6 |
| Challenger Puerto Vallarta - Qual. | 2018/04/28 21:25 | Lucas Gomez v Ivar Jose Aramburu Contreras | 6-1,7-6 |
| Challenger San Luis Potosi - Qual. | 2018/03/25 17:20 | Ivar Jose Aramburu Contreras v Kevin Krawietz | 0-6,6-7 |
| Challenger Morelos - Qual. | 2018/02/17 16:40 | Ivar Jose Aramburu Contreras v Boris Arias | 2-6,3-6 |