| Dutch Open | 10/09 13:55 | 5 | Lakshya Sen v Guerrero, Osleni | L | 2-0 | |
| Belgian International 2019, MS | 09/12 09:20 | 5 | Guerrero, Osleni v Heino, Eetu | L | 0-2 | |
| Pan Am Games | 07/31 14:00 | - | Brian Yang v Guerrero, Osleni | L | 2-1 | |
| Pan Am Games | 07/29 16:30 | - | Oliva, Nicolas v Guerrero, Osleni | W | 0-2 | |
| Mexico Future Series | 06/30 15:00 | - | Guerrero, Osleni v Munoz, Lino | W | 2-1 | |
| Mexico Future Series | 06/29 15:00 | - | Guerrero, Osleni v Montoya Navarro, Luis Armando | W | 2-0 | |
| Mexico Future Series | 06/28 20:00 | - | Guerrero, Osleni v Uriel F C Artiga | W | 2-0 | |
| Mexico Future Series | 06/27 15:00 | - | Guerrero, Osleni v Martinez Cardoso, Sebastian | W | 2-0 | |
| Peru Int. | 06/21 21:20 | - | Brian Yang v Guerrero, Osleni | L | 2-1 | |
| Peru Future Series | 05/10 21:00 | - | Guerrero, Osleni v B.R. Sankeerth | L | 1-2 | |
| Peru Future Series | 05/09 15:00 | - | Guerrero, Osleni v Oliva, Nicolas | W | 2-0 | |
| Pan Am Championships | 04/28 15:30 | - | Kevin Cordon v Guerrero, Osleni | W | 0-2 | |
| Pan Am Championships | 04/27 16:00 | - | Guerrero, Osleni v Ho-Shue, Jason Anthony | W | 2-1 | |
| Pan Am Championships | 04/25 19:00 | - | Robinson, Gavin v Guerrero, Osleni | W | 0-2 | |
| Giraldilla Int. XD | 09/22 16:00 | 1 | Kevin Cordon v Guerrero, Osleni | L | 2-1 | |
| Giraldilla Int. XD | 09/21 15:00 | 1 | Guerrero, Osleni v Bernardo Atilano | W | 2-0 | |
| Giraldilla Int. XD | 09/20 15:30 | 1 | Guerrero, Osleni v Mini, Diego | W | 2-0 | |
| Giraldilla Int. XD | 07/01 16:00 | 1 | Kevin Cordon v Guerrero, Osleni | L | 2-1 | |
| Giraldilla Int. XD | 06/30 15:00 | 1 | Guerrero, Osleni v Ludik, Milan | W | 2-0 | |
| Giraldilla Int. XD | 04/28 17:00 | 1 | Ygor Coelho v Guerrero, Osleni | L | 2-0 | |
| Giraldilla Int. XD | 04/27 22:00 | 1 | Guerrero, Osleni v Job Castillo | W | 2-1 | |
| Giraldilla Int. XD | 03/15 15:30 | 1 | Guerrero, Osleni v Xiaodong Sheng | L | 1-2 | |
| Giraldilla Int. XD | 10/27 14:00 | 1 | Guerrero, Osleni v Luis Ramon Garrido | W | 2-1 | |
| Giraldilla Int. XD | 10/26 20:00 | 1 | Guerrero, Osleni v Anjo, Duarte Nuno | W | 2-0 | |
| Giraldilla Int. XD | 10/25 20:00 | 1 | Maddaloni, Rosario v Guerrero, Osleni | W | 1-2 | |
| Giraldilla Int. XD | 10/24 20:00 | 1 | Guerrero, Osleni v Martinez Salvador, Christopher Alexander | W | 2-1 | |
| Giraldilla Int. XD | 10/24 14:00 | 1 | Guerrero, Osleni v Easton, Rory | W | 2-0 | |
| Giraldilla Int. XD | 09/21 17:30 | 1 | Guerrero, Osleni v Munoz, Lino | L | 0-2 | |
| Giraldilla Int. XD | 04/30 15:00 | 1 | Ygor Coelho v Guerrero, Osleni | L | 2-1 | |
| Giraldilla Int. XD | 04/29 15:00 | - | Guerrero, Osleni v Seguin, Bjorn | W | 2-0 |