| ATP Istanbul | 05/01 09:30 | 25 | [131] Thiago Monteiro v Gerald Melzer [115] | 6-2,3-6,6-1 | |
| ATP Budapest Qual | 04/21 11:15 | 26 | [115] Gerald Melzer v Lorenzo Sonego [159] | 3-6,2-6 | |
| Challenger San Luis Potosi | 03/28 21:40 | 25 | [277] Jan Choinski v Gerald Melzer [113] | Retired | |
| ATP Sao Paulo | 02/26 15:30 | 25 | Gerald Melzer v Guillermo Garcia-Lopez | 4-6,6-3,3-6 | |
| ATP Rio De Janeiro | 02/20 19:30 | 25 | Pablo Andujar v Gerald Melzer | 7-5,6-2 | |
| ATP Quito | 02/09 23:45 | 27 | Gerald Melzer v Albert Ramos-Vinolas | 2-6,4-6 | |
| ATP Quito | 02/08 17:00 | 26 | Victor Estrella Burgos v Gerald Melzer | 6-4,1-6,4-6 | |
| ATP Quito | 02/06 19:30 | 25 | Gerald Melzer v Marco Cecchinato | 6-4,6-2 | |
| Davis Cup | 02/03 15:20 | 26 | Gerald Melzer v Dzmitry Zhyrmont | Cancelled | |
| Davis Cup | 02/02 14:00 | 26 | Gerald Melzer v Ilya Ivashka | 2-6,7-5,6-4 | |
| Australian Open | 01/15 06:00 | 23 | Gerald Melzer v Nikoloz Basilashvili | 3-6,4-6,6-2,3-6 | |
| Challenger Guayaquil | 11/05 01:00 | 29 | [119] Gerald Melzer v Facundo Bagnis [164] | 6-3,6-1 | |
| Challenger Guayaquil | 11/03 23:00 | 28 | [258] Hugo Dellien v Gerald Melzer [119] | 0-6,4-6 | |
| Challenger Guayaquil | 11/03 01:00 | 27 | [304] Roberto Quiroz v Gerald Melzer [119] | 1-6,4-6 | |
| Challenger Guayaquil | 11/01 21:55 | 26 | [408] Martin Cuevas v Gerald Melzer [119] | 6-3,2-6,2-6 | |
| Challenger Guayaquil | 10/31 20:25 | 25 | Juan Pablo Ficovich v Gerald Melzer | 2-6,1-6 | |
| Challenger Lima | 10/29 18:00 | 29 | [185] Jozef Kovalik v Gerald Melzer [138] | 5-7,6-7 | |
| Challenger Lima | 10/28 20:05 | 28 | [86] Nicolas Kicker v Gerald Melzer [138] | 2-6,3-6 | |
| Challenger Lima | 10/27 22:25 | 27 | [138] Gerald Melzer v Facundo Bagnis [161] | 6-3,6-4 | |
| Challenger Lima | 10/25 18:00 | 26 | Jose H-Fernandez v Gerald Melzer | 4-6,0-6 | |
| Challenger Lima | 10/24 17:20 | 25 | [175] Carlos Taberner v Gerald Melzer [138] | 4-6,4-6 | |
| Challenger Cali 2 | 10/20 19:00 | 28 | [142] Gerald Melzer v Federico Delbonis [69] | 1-6,2-6 | |
| Challenger Cali 2 | 10/19 17:00 | 27 | Gerald Melzer v Roberto Carballes Baena | 6-0,6-2 | |
| Challenger Cali 2 | 10/18 16:45 | 26 | [142] Gerald Melzer v Goncalo Oliveira [213] | 6-2,6-0 | |
| Challenger Cali 2 | 10/17 17:55 | 25 | [142] Gerald Melzer v Marcelo Arevalo [214] | 6-1,6-2 | |
| Challenger Buenos Aires | 10/14 19:00 | 28 | [67] Horacio Zeballos v Gerald Melzer [156] | 6-3,7-6 | |
| Challenger Buenos Aires | 10/13 19:35 | 27 | [156] Gerald Melzer v Joao Domingues [182] | 6-3,6-1 | |
| Challenger Buenos Aires | 10/11 14:00 | 26 | [156] Gerald Melzer v Blaz Rola [250] | 6-4,6-3 | |
| Challenger Buenos Aires | 10/09 17:20 | 25 | [156] Gerald Melzer v Joao Pedro Sorgi [270] | 7-5,6-4 | |
| Davis Cup | 09/17 14:15 | 27 | Gerald Melzer v Bogdan Borza | 6-1,7-5 |
Wikipedia - Gerald Melzer
Gerald Melzer (born 13 July 1990) is a professional Austrian tennis player. He achieved a career-high singles ranking of world No. 68 in November 2016.
History
Gerald Melzer has primarily spent his time on the Futures circuit, while also playing challengers and several doubles events with his brother. He began playing on the tour in 2007, competing in tournaments in Austria as well as Futures tournaments in Africa.
In 2008, he has had more success playing doubles, partnering with his brother to win a challenger in Graz, Austria.
In 2015, as a qualifier, Gerald reached the semifinals of Munich.
He faced his brother, Jürgen, in the first round of the 2015 Wimbledon qualifying tournament, and lost in straight sets. Jürgen described it as the "worst tennis day of my life and I hope we will never play each other again."
At the 2017 Australian Open, Melzer lost in the first round to Australian Alex De Minaur in five sets. He held a match point in the fourth set, but was unable to close it out.
Gerald is also part of Austrian Davis Cup team, where he has 4 singles wins and 6 losses.