Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Santo Domingo | 2021/11/30 13:00 | Gonzalo Achondo v Marko Stakusic | 1-6,1-6 |
| ITF M15 Cochabamba | 2021/11/17 19:40 | Gonzalo Achondo v Jorge Panta | 1-6,2-6 |
| ITF M15 Cochabamba | 2021/11/16 15:20 | Gonzalo Achondo v Jose Andres Arandia | 6-0,6-0 |
| ITF M15 Cochabamba | 2021/11/15 17:50 | Gonzalo Achondo v Juan Luis Yanine | 6-4,6-4 |
| ITF M25 Guayaquil | 2021/10/28 18:35 | Juan A H Serrano v Gonzalo Achondo | 6-0,6-1 |
| ITF M25 Guayaquil | 2021/10/26 16:20 | Juan Diego Rojas Mora v Gonzalo Achondo | 6-4,1-6,4-6 |
| ITF M15 Cairo | 2021/08/30 12:30 | Gonzalo Achondo v Lorenzo Gagliardo | 4-6,0-6 |
| ITF M15 Bad Waltersdorf | 2021/08/23 07:00 | Gonzalo Achondo v Philip Bachmaier | 0-6,3-6 |
| ITF M15 East Lansing | 2021/11/16 16:00 | Johannes Ingildsen v Matt Kuhar | 2-6,6-4,11-13 |
| ITF M15 Fayetteville | 2021/11/04 15:00 | Charles Broom v Johannes Ingildsen | 6-4,4-6,7-6 |
| ITF M15 Fayetteville | 2021/11/03 18:15 | Lorenzo Claverie v Johannes Ingildsen | 6-2,5-7,0-6 |
| ITF M15 Tallahassee | 2021/10/31 14:00 | Johannes Ingildsen v Vasil Kirkov | 6-4,1-6,2-6 |
| ITF M15 Tallahassee | 2021/10/30 14:00 | Ryan Shane v Johannes Ingildsen | 6-1,4-6,3-6 |
| ITF M15 Tallahassee | 2021/10/29 14:00 | Matias Franco Descotte v Johannes Ingildsen | 6-7,3-6 |
| ITF M15 Tallahassee | 2021/10/28 16:00 | Alexandre Reco v Johannes Ingildsen | 2-6,7-5,4-6 |
| ITF M15 Tallahassee | 2021/10/27 19:55 | Johannes Ingildsen v Cannon Kingsley | 3-6,6-2,7-5 |