| Austria Bundesliga | 09/07 10:00 | 1 | Neuchrist, Maximilian v Mayer, Florian (1983) | 6-7,6-3,3-6 | |
| US Open, New York, USA | 08/27 19:10 | 23 | [20] Borna Coric v Mayer, Florian (1983) [193] | 6-2,6-2,5-7,6-4 | |
| Pullach, Germany | 08/06 15:45 | 25 | Avidzba, Alen v Mayer, Florian (1983) | 6-3,3-6,6-3 | |
| Pullach, Germany | 08/06 15:45 | 25 | Balazs, Attila v Mayer, Florian (1983) | Cancelled | |
| Hamburg, Germany | 07/23 16:05 | 25 | [13] Carreno-Busta, Pablo v Mayer, Florian (1983) [94] | 2-6,6-1,7-6 | |
| Braunchsweig, Germany | 07/09 14:55 | 25 | [91] Mayer, Florian (1983) v de Greef, Arthur [254] | 6-7,6-2,2-6 | |
| Wimbledon, London, Great Britain | 07/03 10:30 | 23 | [93] Jiri Vesely v Mayer, Florian (1983) [91] | 7-6,6-4,4-6,6-1 | |
| Antalya, Turquie | 06/24 13:25 | 25 | [82] Mayer, Florian (1983) v Joao Sousa [47] | 2-6,2-6 | |
| ATP Halle | 06/21 15:55 | 26 | [82] Mayer, Florian (1983) v Seppi, Andreas [50] | 2-6,4-6 | |
| ATP Halle | 06/19 12:20 | 25 | [25] Richard Gasquet v Mayer, Florian (1983) [82] | 2-6,2-6 | |
| Stuttgart, Germany | 06/13 12:50 | 26 | [100] Istomin, Denis v Mayer, Florian (1983) [85] | 6-3,6-4 | |
| Stuttgart, Germany | 06/11 11:15 | 25 | [85] Mayer, Florian (1983) v Maden, Yannick [135] | 6-4,6-1 | |
| French Open, Paris, France | 05/29 13:45 | 23 | [64] Zverev, Mischa v Mayer, Florian (1983) [90] | 6-2,6-1,7-6 | |
| Geneva, Switzerland | 05/21 12:10 | 25 | [90] Mayer, Florian (1983) v Bernabe Zapata Miralles [281] | 3-6,2-6 | |
| ATP Rome Qual | 05/12 15:50 | 45 | [95] Dusan Lajovic v Mayer, Florian (1983) [75] | 7-5,3-6,6-2 | |
| ATP Madrid Qual | 05/06 14:00 | 46 | [72] Mayer, Florian (1983) v Dusan Lajovic [92] | 3-6,3-6 | |
| ATP Madrid Qual | 05/05 17:35 | 45 | [72] Mayer, Florian (1983) v Granollers, Marcel [129] | 7-6,7-6 | |
| ATP - Munich | 04/30 15:20 | 25 | [72] Mayer, Florian (1983) v Martin Klizan [122] | 6-3,4-6,3-6 | |
| ATP - Monte-Carlo | 04/16 13:35 | 24 | [74] Mayer, Florian (1983) v Muller, Gilles [28] | 5-7,4-6 | |
| ATP Monte Carlo Qual | 04/15 12:05 | 46 | [74] Mayer, Florian (1983) v Ilya Ivashka [123] | 5-7,0-6 | |
| ATP Monte Carlo Qual | 04/14 14:30 | 45 | [74] Mayer, Florian (1983) v Robredo, Tommy [173] | 6-2,7-5 | |
| ATP - Dubaï | 02/26 12:00 | 25 | Bautista-Agut, Roberto v Mayer, Florian (1983) | 6-3,6-4 | |
| ATP - Buenos Aires | 02/12 17:00 | 25 | Delbonis, Federico v Mayer, Florian (1983) | 7-6,6-4 | |
| Sofia, Bulgaria | 02/06 10:00 | 25 | Mayer, Florian (1983) v Mirza Basic | 4-6,1-6 | |
| ATP Sofia Qual | 02/05 10:00 | - | Mayer, Florian (1983) v Gulbis, Ernests | 4-6,1-6 | |
| ATP Sofia Qual | 02/04 10:00 | 26 | Mayer, Florian (1983) v Smith, John-Patrick | 7-6,7-6 | |
| Open d'Australie | 01/16 03:25 | 23 | Evgeny Donskoy v Mayer, Florian (1983) | 6-4,6-4,6-4 | |
| Challenger Canberra | 01/11 05:20 | 27 | Estrella Burgos, Victor v Mayer, Florian (1983) | 7-6,0-6,6-3 | |
| Challenger Canberra | 01/10 00:50 | 26 | Mitchell, Benjamin v Mayer, Florian (1983) | 4-6,6-7 | |
| Challenger Canberra | 01/08 01:15 | 25 | Yosuke Watanuki v Mayer, Florian (1983) | 7-5,1-6,4-6 |