| ITF Mexico F4 | 05/20 18:20 | 28 | Juan Ignacio Londero v Marcel Felder | 3-6,5-7 | |
| ITF Mexico F4 | 05/19 19:00 | 27 | Samuel Monette v Juan Ignacio Londero | 3-6,2-6 | |
| ITF Mexico F4 | 05/18 00:00 | 26 | [384] Luis Patino v Juan Ignacio Londero [388] | 5-7,2-6 | |
| ITF Mexico F4 | 05/15 21:50 | 25 | Jose Olivares v Juan Ignacio Londero | 3-6,6-4,4-6 | |
| ITF Mexico F3 | 05/11 19:00 | 27 | Kevin King v Juan Ignacio Londero | 2-6,6-1,7-6 | |
| ITF Mexico F3 | 05/10 18:30 | 26 | Ricardo Rodriguez-Pace v Juan Ignacio Londero | 1-6,5-7 | |
| ITF Mexico F3 | 05/09 20:25 | 25 | Raleigh Smith v Juan Ignacio Londero | 1-6,2-6 | |
| ITF Mexico F2 | 05/06 16:00 | 28 | Ivan Endara v Juan Ignacio Londero | 6-1,7-5 | |
| ITF Mexico F2 | 05/05 22:10 | 27 | Manuel Sanchez v Juan Ignacio Londero | 6-7,3-6 | |
| ITF Mexico F2 | 05/03 22:55 | 26 | Tigre Hank v Juan Ignacio Londero | 2-6,1-6 | |
| ITF Mexico F2 | 05/01 19:00 | 25 | Farris Fathi Gosea v Juan Ignacio Londero | Retired | |
| Challenger San Luis Potosi | 04/13 00:20 | 26 | [106] Facundo Bagnis v Juan Ignacio Londero [382] | 6-3,4-6,6-3 | |
| Challenger San Luis Potosi | 04/10 18:15 | 25 | [382] Juan Ignacio Londero v Marcel Felder [245] | 6-3,6-3 | |
| Challenger Leon Qual | 03/28 20:00 | 54 | [377] Juan Ignacio Londero v Roberto Quiroz [304] | 2-6,7-6,5-7 | |
| Challenger Leon Qual | 03/27 17:45 | 46 | [283] Gianluigi Quinzi v Juan Ignacio Londero [377] | 4-6,7-5,1-6 | |
| Challenger Leon Qual | 03/26 16:00 | 45 | Ivar Jose Aramburu Contreras v Juan Ignacio Londero | 2-6,3-6 | |
| Challenger Guadalajara Qual | 03/19 23:00 | 46 | Juan Ignacio Londero v Ramkumar Ramanathan | 3-6,1-6 | |
| Challenger Buenos Aires | 03/16 13:30 | 25 | [409] Matias Zukas v Juan Ignacio Londero [351] | 6-4,6-2 | |
| Challenger Santiago - kvalifikace | 03/05 14:00 | 54 | Guilherme Clezar v Juan Ignacio Londero | 6-4,6-3 | |
| Challenger Santiago - kvalifikace | 03/04 20:00 | 46 | Andres Molteni v Juan Ignacio Londero | 4-6,4-6 | |
| Challenger Santiago - kvalifikace | 03/04 13:55 | 45 | Fabiano De Paula v Juan Ignacio Londero | 3-6,6-7 | |
| ITF USA F7 | 02/17 16:45 | 27 | Genaro Alberto Olivieri v Juan Ignacio Londero | 6-4,6-3 | |
| ITF USA F7 | 02/16 23:30 | 26 | Junior Alexander Ore v Juan Ignacio Londero | 1-6,2-6 | |
| ITF USA F7 | 02/14 15:00 | 25 | Naoki Nakagawa v Juan Ignacio Londero | 6-2,4-6,0-6 | |
| ITF USA F6 | 02/02 15:00 | 26 | Genaro A Olivieri v Juan Ignacio Londero | 6-4,4-6,7-6 | |
| ITF USA F6 | 02/01 15:00 | 25 | Nick Chappell v Juan Ignacio Londero | 3-6,0-6 | |
| ITF USA F5 | 01/27 15:00 | 27 | Dominik Koepfer v Juan Ignacio Londero | 6-4,6-2 | |
| ITF USA F5 | 01/26 18:00 | 26 | Bastian Trinker v Juan Ignacio Londero | Retired | |
| ITF USA F5 | 01/24 15:00 | 25 | Rhyne Williams v Juan Ignacio Londero | Retired | |
| ITF USA F4 | 01/17 15:00 | 25 | Juan Ignacio Londero v Brayden Schnur | 6-7,3-6 |
Wikipedia - Juan Ignacio Londero
Juan Ignacio Londero (* 15. srpna 1993 Jesús María, Córdoba) je argentinský profesionální tenista. Ve své dosavadní kariéře na okruhu ATP Tour vyhrál jeden singlový turnaj. Na challengerech ATP a okruhu ITF získal šest titulů ve dvouhře a sedm ve čtyřhře.
Na žebříčku ATP byl ve dvouhře nejvýše klasifikován v březnu 2019 na 64. místě a ve čtyřhře pak v červenci 2017 na 209. místě. Trénuje ho Andrés Schneiter.
V argentinském daviscupovém týmu neodehrál do listopadu 2019 žádné utkání.