| Challenger Santiago | 03/07 19:10 | 25 | [130] Juan Ignacio Londero v Andrea Collarini [242] | 6-0,7-6 | |
| ATP Santiago | 02/23 14:30 | 26 | [78] Sebastian Baez v Juan Ignacio Londero [139] | 6-3,6-3 | |
| ATP Santiago | 02/21 14:30 | 25 | [120] Tomas Martin Etcheverry v Juan Ignacio Londero [139] | 6-4,4-6,5-7 | |
| ATP Santiago | 02/20 15:00 | 19 | [144] Juan Ignacio Londero v Felipe Meligeni Rodrigues Alves [224] | 6-4,6-4 | |
| ATP Santiago | 02/19 17:00 | 14 | Juan Ignacio Londero v Andrea Collarini | 6-2,6-3 | |
| ATP Rio de Janeiro | 02/15 21:15 | 25 | [33] Albert Ramos-Vinolas v Juan Ignacio Londero [144] | 6-3,6-4 | |
| ATP Rio de Janeiro | 02/13 19:00 | 19 | [78] Roberto Carballes Baena v Juan Ignacio Londero [130] | 2-6,4-6 | |
| ATP Rio de Janeiro | 02/12 19:00 | 14 | [130] Juan Ignacio Londero v Carlos Taberner [115] | 6-3,6-1 | |
| ATP Buenos Aires | 02/08 21:30 | 25 | [130] Juan Ignacio Londero v Pablo Andujar [73] | 2-6,4-6 | |
| ATP Córdoba | 02/05 23:50 | 28 | [44] Albert Ramos-Vinolas v Juan Ignacio Londero [139] | 7-6,6-4 | |
| ATP Córdoba | 02/04 20:20 | 27 | [139] Juan Ignacio Londero v Nikola Milojevic [136] | 6-4,7-5 | |
| ATP Córdoba | 02/02 19:55 | 26 | [61] Pedro Martinez v Juan Ignacio Londero [139] | 3-6,6-7 | |
| ATP Córdoba | 02/01 02:35 | 25 | [120] Yannick Hanfmann v Juan Ignacio Londero [139] | 3-6,4-6 | |
| Challenger Florianopolis | 12/11 15:30 | 28 | [359] Igor Marcondes v Juan Ignacio Londero [140] | 7-6,3-6,6-4 | |
| Challenger Florianopolis | 12/10 13:00 | 27 | [140] Juan Ignacio Londero v Daniel Dutra Da Silva [391] | 6-4,6-3 | |
| Challenger Florianopolis | 12/09 14:25 | 26 | [140] Juan Ignacio Londero v Johan Nikles [349] | 6-1,6-4 | |
| Challenger Florianopolis | 12/07 18:35 | 25 | [140] Juan Ignacio Londero v Gustavo Heide [472] | 7-5,7-5 | |
| Challenger Sao Paulo | 11/30 12:30 | 25 | [398] Gustavo Heide v Juan Ignacio Londero [139] | 6-3,7-5 | |
| Challenger Brazílie | 11/26 15:05 | 27 | [69] Federico Coria v Juan Ignacio Londero [144] | 7-6,6-4 | |
| Challenger Brazílie | 11/24 17:15 | 26 | [180] Felipe M R Alves v Juan Ignacio Londero [144] | 4-6,6-7 | |
| Challenger Brazílie | 11/22 16:00 | 25 | [354] Johan Nikles v Juan Ignacio Londero [144] | 4-6,4-6 | |
| Challenger Campinas | 11/16 16:20 | 25 | Gustavo Heide v Juan Ignacio Londero | 7-5,4-6,6-4 | |
| Challenger Montevideo | 11/14 20:00 | 29 | [130] Hugo Dellien v Juan Ignacio Londero [159] | 6-0,6-1 | |
| Challenger Montevideo | 11/14 01:35 | 28 | [159] Juan Ignacio Londero v Jaume Munar [89] | 0-6,6-4,6-4 | |
| Challenger Montevideo | 11/12 20:30 | 27 | [159] Juan Ignacio Londero v Thiago Monteiro [95] | 6-3,7-6 | |
| Challenger Montevideo | 11/11 19:15 | 26 | [159] Juan Ignacio Londero v Hernan Casanova [338] | 6-4,6-2 | |
| Challenger Montevideo | 11/09 21:00 | 25 | [112] Francisco Cerundolo v Juan Ignacio Londero [159] | 4-6,6-4,2-6 | |
| Challenger Buenos Aires | 10/21 22:45 | 26 | [124] Sebastian Baez v Juan Ignacio Londero [170] | 6-3,6-4 | |
| Challenger Buenos Aires | 10/19 14:00 | 25 | [416] Carlos Gomez-Herrera v Juan Ignacio Londero [170] | 3-6,4-6 | |
| Challenger Santiago | 10/14 14:00 | 26 | [157] Juan Ignacio Londero v Felipe Meligeni Rodrigues Alves [205] | 6-2,3-6,4-6 |
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.