US Open, New York, USA, Qualifying 08/25 15:00 44 Sarkissian, Alexander v Mertl, Jan 6-4,4-6,3-6
ITF Czech Republic F6 07/11 09:00 - Ignatik, Uladzimir v Mertl, Jan 6-7,6-4,6-1
ITF Czech Republic F6 07/10 10:40 - Poskocil, Jan v Mertl, Jan 4-6,2-6
ITF Czech Republic F6 07/09 08:30 - Kamil Majchrzak v Mertl, Jan 4-6,6-4,1-6
ITF Czech Republic F6 07/08 08:00 - Vajda, Peter v Mertl, Jan 0-6,0-6
ITF Czech Republic F5 06/30 10:30 - Mertl, Jan v Smirnov, Artem 7-6,4-6,3-6
Wimbledon Qual 06/24 15:40 45 Viola, Matteo v Mertl, Jan 4-6,6-7
Wimbledon Qual 06/23 10:00 44 Mertl, Jan v Hernandez-Fernandez, Jose 3-6,7-5,15-13
Challenger Poprad Tatry 06/15 08:30 25 Mertl, Jan v Ghem, Andre 2-6,2-6
ITF Czech Republic F3 05/26 11:25 - Mertl, Jan v Zdenek Kolar 3-6,2-6
ITF Czech Republic F1 05/17 09:00 - Mertl, Jan v Ignatik, Uladzimir 1-6,3-6
ITF Czech Republic F1 05/16 09:15 - Mertl, Jan v Safranek, Vaclav 7-5,6-4
ITF Czech Republic F1 05/15 11:25 - Mertl, Jan v Suc, Dominik 6-3,6-0
ITF Czech Republic F1 05/12 10:35 - Mertl, Jan v Alex Molcan 6-2,6-2
Challenger - Rome 05/05 12:25 25 Mertl, Jan v Matteo Berrettini 4-6,2-6
Challenger - Ostrava 04/28 08:00 25 Martin, Andrej v Mertl, Jan 6-3,6-4
Challenger St Brieuc 04/09 09:00 26 Mektic, Nikola v Mertl, Jan 4-6,6-3,6-4
Challenger St Brieuc 04/07 16:00 25 Mertl, Jan v Corrie, Edward 7-5,6-7,6-3
ITF Great Britain F5 03/24 12:10 - Mertl, Jan v Neuchrist, Maximilian 3-6,4-6
ITF Switzerland F2 03/22 09:30 - Mertl, Jan v Sommer, Enzo 6-2,7-5
ITF Switzerland F2 03/21 09:30 - Mertl, Jan v Jankovits, Yannick 6-4,4-6,7-6
ITF Switzerland F2 03/20 11:00 - Mertl, Jan v Haenle, Pirmin 6-4,6-2
ITF Switzerland F2 03/19 14:50 - Mertl, Jan v Frigerio, Lorenzo 6-4,6-4
ITF Switzerland F2 03/18 11:00 - Mertl, Jan v Baltensperger, Raphael 6-0,6-4
Coupe Davis 03/08 15:10 - Mertl, Jan v Groth, Sam 6-3,6-2
Challenger Wroclaw 02/20 16:10 27 Mertl, Jan v Mirza Basic 6-7,7-6,5-7
Challenger Wroclaw 02/19 15:00 26 Mertl, Jan v Kapas, Andriej 5-7,6-3,6-4
Challenger Wroclaw 02/17 17:15 25 Nedovyesov, Aleksandr v Mertl, Jan 7-6,6-7,6-7
Bergamo, Italy 02/09 19:45 25 Benoit Paire v Mertl, Jan 4-6,7-5,6-4
Challenger Ortisei 11/05 18:25 26 Bachinger, Matthias v Mertl, Jan 6-3,7-6