4‑Nov‑2024 | Belgrade | Hard | QF | 153 | 31 | (4)Jiri Lehecka [CZE] d. (Q)Klein | 3-6 7-6(3) 6-3 | | 0.94 | 12.5% | 1.0% | 72.9% | 68.6% | 50.0% | 8/10 | 2:00 |
4‑Nov‑2024 | Belgrade | Hard | R16 | 153 | 39 | (Q)Klein d. (7)Tomas Martin Etcheverry [ARG] | 6-4 7-6(6) | | 1.41 | 10.6% | 3.0% | 71.2% | 74.5% | 68.4% | 0/1 | 1:46 |
4‑Nov‑2024 | Belgrade | Hard | R32 | 153 | 77 | (Q)Klein d. James Duckworth [AUS] | 6-4 6-2 | | 1.60 | 11.1% | 4.4% | 60.0% | 70.4% | 61.1% | 2/4 | 1:17 |
4‑Nov‑2024 | Belgrade | Hard | Q2 | 153 | 123 | Klein d. (8)Jozef Kovalik [SVK] | 3-6 6-3 6-1 | | 1.19 | 10.3% | 5.1% | 70.5% | 69.1% | 52.2% | 4/6 | 1:36 |
4‑Nov‑2024 | Belgrade | Hard | Q1 | 153 | 92 | Klein d. (4)Yannick Hanfmann [GER] | 6-4 6-4 | | 1.23 | 11.7% | 1.7% | 76.7% | 76.1% | 71.4% | 3/3 | 1:15 |
28‑Oct‑2024 | Bratislava 2 CH | Hard | R16 | 146 | 140 | Kei Nishikori [JPN] d. Klein | 6-3 6-7(3) 6-1 | | 0.82 | 6.2% | 3.7% | 76.5% | 67.7% | 42.1% | 3/6 | 1:59 |
28‑Oct‑2024 | Bratislava 2 CH | Hard | R32 | 146 | 96 | Klein d. Otto Virtanen [FIN] | 6-3 6-4 | | 1.46 | 3.8% | 5.8% | 71.2% | 86.5% | 40.0% | 2/2 | 1:00 |
14‑Oct‑2024 | Stockholm | Hard | Q1 | 132 | 246 | Zsombor Piros [HUN] d. (4)Klein | 6-7(5) 6-2 6-3 | | 0.76 | 2.2% | 5.6% | 55.1% | 69.4% | 42.5% | 6/11 | 1:58 |
30‑Sep‑2024 | Villena CH | Hard | R16 | 119 | 242 | Martin Landaluce [ESP] d. (3)Klein | 3-6 6-2 7-6(3) | | 0.79 | 6.4% | 7.3% | 58.7% | 70.3% | 42.2% | 12/15 | 2:13 |
30‑Sep‑2024 | Villena CH | Hard | R32 | 119 | 172 | (3)Klein d. Gijs Brouwer [NED] | 7-6(7) 2-1 RET | | 1.36 | 23.4% | 6.4% | 70.2% | 81.8% | 50.0% | 1/2 | 1:01 |
18‑Sep‑2024 | Chengdu | Hard | R16 | 127 | 28 | (3)Nicolas Jarry [CHI] d. Klein | 7-6(2) 3-6 6-4 | | 1.00 | 8.6% | 1.1% | 73.1% | 73.5% | 52.0% | 5/7 | 2:18 |
18‑Sep‑2024 | Chengdu | Hard | R32 | 127 | 94 | Klein d. Adam Walton [AUS] | 7-6(3) 6-4 | | 1.50 | 19.0% | 3.2% | 63.5% | 77.5% | 78.3% | 1/1 | 1:40 |
13‑Sep‑2024 | Davis Cup Finals RR: USA vs SVK | Hard | RR | 127 | 149 | Mackenzie Mcdonald [USA] d. Klein | 6-4 6-3 | | 0.70 | 5.2% | 6.9% | 62.1% | 75.0% | 22.7% | 2/6 | 1:16 |
10‑Sep‑2024 | Davis Cup Finals RR: GER vs SVK | Hard | RR | 127 | 104 | Maximilian Marterer [GER] d. Klein | 6-4 7-5 | | 0.78 | 15.8% | 0.0% | 64.9% | 83.8% | 40.0% | 0/2 | 1:31 |
26‑Aug‑2024 | US Open | Hard | Q1 | 110 | 162 | Joao Fonseca [BRA] d. (9)Klein | 4-6 6-4 6-2 | | 0.94 | 6.9% | 9.2% | 65.5% | 68.4% | 46.7% | 5/10 | 1:42 |
29‑Jul‑2024 | Porto CH | Hard | R16 | 112 | 457 | (Q)Edas Butvilas [LTU] d. (1)Klein | 6-4 7-6(8) | | 0.86 | 0.0% | 6.7% | 56.2% | 66.0% | 48.7% | 6/9 | 1:45 |
29‑Jul‑2024 | Porto CH | Hard | R32 | 112 | 259 | (1)Klein d. Egor Gerasimov [BLR] | 6-3 6-7(4) 6-1 | | 1.16 | 5.9% | 6.9% | 62.4% | 76.2% | 55.3% | 7/8 | 2:17 |
22‑Jul‑2024 | Kitzbuhel | Clay | R32 | 119 | 80 | Sumit Nagal [IND] d. (Q)Klein | 6-4 1-6 7-6(3) | | 1.09 | 9.2% | 5.1% | 68.4% | 68.7% | 45.2% | 11/14 | 2:18 |
22‑Jul‑2024 | Kitzbuhel | Clay | Q2 | 119 | 134 | (3)Klein d. (7)Otto Virtanen [FIN] | 6-2 6-4 | | 1.28 | 2.8% | 2.8% | 56.9% | 75.6% | 51.6% | 10/10 | 1:27 |
22‑Jul‑2024 | Kitzbuhel | Clay | Q1 | 119 | 300 | (3)Klein d. Vitaliy Sachko [UKR] | 7-6(5) 6-1 | | 1.38 | 12.5% | 0.0% | 73.2% | 73.2% | 60.0% | 2/3 | |
15‑Jul‑2024 | Gstaad | Clay | R16 | 118 | 192 | (Q)Quentin Halys [FRA] d. Klein | 6-3 6-7(7) 6-4 | | 0.72 | 2.9% | 3.9% | 63.7% | 73.8% | 48.6% | 5/8 | 2:09 |
15‑Jul‑2024 | Gstaad | Clay | R32 | 118 | 105 | Klein d. (8)Stan Wawrinka [SUI] | 7-6(4) 2-6 7-5 | | 1.12 | 10.0% | 3.3% | 63.3% | 80.7% | 63.6% | 0/2 | 2:01 |
8‑Jul‑2024 | Braunschweig CH | Clay | R16 | 128 | 64 | (1)Roberto Carballes Baena [ESP] d. Klein | 6-2 6-4 | | 0.69 | 1.5% | 2.9% | 63.2% | 60.5% | 36.0% | 5/9 | 1:34 |
8‑Jul‑2024 | Braunschweig CH | Clay | R32 | 128 | 109 | Klein d. Jozef Kovalik [SVK] | 6-7(3) 7-6(3) 6-1 | | 1.15 | 9.3% | 3.7% | 60.2% | 75.4% | 55.8% | 3/5 | 2:26 |
1‑Jul‑2024 | Wimbledon | Grass | Q2 | 128 | 230 | Timofey Skatov [KAZ] d. (26)Klein | 7-6(8) 7-6(5) | | 1.32 | 12.5% | 2.5% | 70.0% | 75.0% | 75.0% | 2/2 | 2:16 |
1‑Jul‑2024 | Wimbledon | Grass | Q1 | 128 | 208 | (26)Klein d. Tristan Boyer [USA] | 6-4 7-6(5) | | 1.47 | 3.1% | 3.1% | 63.1% | 75.6% | 66.7% | 1/2 | 1:52 |
17‑Jun‑2024 | Ilkley CH | Grass | QF | 130 | 127 | (7)Zachary Svajda [USA] d. Klein | 6-4 4-6 6-1 | | 0.85 | 20.0% | 7.5% | 68.8% | 74.5% | 28.0% | 6/10 | 1:36 |
17‑Jun‑2024 | Ilkley CH | Grass | R16 | 130 | 172 | Klein d. (Q)Tomas Barrios Vera [CHI] | 2-6 7-6(2) 6-4 | | 0.82 | 8.5% | 7.4% | 60.6% | 78.9% | 48.6% | 5/8 | 1:56 |
17‑Jun‑2024 | Ilkley CH | Grass | R32 | 130 | 237 | Klein d. (WC)Ryan Peniston [GBR] | 6-3 6-4 | | 1.64 | 13.2% | 0.0% | 75.5% | 80.0% | 69.2% | 1/1 | 1:37 |
27‑May‑2024 | Roland Garros | Clay | Q1 | 119 | 174 | Gustavo Heide [BRA] d. (12)Klein | 1-6 6-3 7-6(5) | | 1.01 | 5.2% | 6.3% | 62.5% | 78.3% | 52.8% | 4/5 | |
22‑Apr‑2024 | Madrid Masters | Clay | R64 | 120 | 16 | (15)Tommy Paul [USA] d. (Q)Klein | 6-7(5) 6-1 6-4 | | 0.82 | 4.5% | 4.5% | 65.9% | 72.4% | 43.3% | 4/7 | 2:20 |
22‑Apr‑2024 | Madrid Masters | Clay | R128 | 120 | 146 | (Q)Klein d. (Q)Pablo Llamas Ruiz [ESP] | 6-1 4-6 7-6(4) | | 1.28 | 5.6% | 5.6% | 71.9% | 75.0% | 56.0% | 1/3 | 2:11 |
22‑Apr‑2024 | Madrid Masters | Clay | Q2 | 120 | 104 | (22)Klein d. (5)Thiago Agustin Tirante [ARG] | 6-3 6-3 | | 1.50 | 7.0% | 1.8% | 70.2% | 75.0% | 58.8% | 5/5 | 1:21 |
22‑Apr‑2024 | Madrid Masters | Clay | Q1 | 120 | 454 | (22)Klein d. (WC)Pol Martin Tiffon [ESP] | 6-3 6-2 | (ch) | 1.36 | 0.0% | 3.5% | 64.9% | 81.1% | 45.0% | 3/3 | 1:22 |
8‑Apr‑2024 | Split CH | Clay | R32 | 118 | 368 | (Q)Elmer Moller [DEN] d. (3)Klein | 7-6(3) 6-3 | | 0.80 | 5.5% | 1.4% | 61.6% | 68.9% | 46.4% | 6/8 | 1:41 |
1‑Apr‑2024 | Estoril | Clay | Q2 | 116 | 262 | Jaime Faria [POR] d. (3)Klein | 6-4 6-7(3) 6-1 | | 0.86 | 8.4% | 3.2% | 64.2% | 75.4% | 47.1% | 6/10 | 2:08 |
1‑Apr‑2024 | Estoril | Clay | Q1 | 116 | 725 | (3)Klein d. (Alt)Pedro Araujo [POR] | 6-3 6-0 | | 1.84 | 4.5% | 4.5% | 61.4% | 81.5% | 47.1% | 2/3 | 1:05 |
18‑Mar‑2024 | Miami Masters | Hard | R128 | 128 | 73 | Alex Michelsen [USA] d. (Q)Klein | 7-6(5) 6-2 | | 0.82 | 8.1% | 4.8% | 62.9% | 61.5% | 52.2% | 5/10 | 1:32 |
18‑Mar‑2024 | Miami Masters | Hard | Q2 | 128 | 70 | Klein d. (4)Jakub Mensik [CZE] | 7-6(6) 7-5 | | 1.60 | 10.0% | 0.0% | 72.9% | 84.3% | 57.9% | 1/1 | 1:44 |
18‑Mar‑2024 | Miami Masters | Hard | Q1 | 128 | 138 | Klein d. (18)Benoit Paire [FRA] | 6-1 7-6(2) | | 2.01 | 9.1% | 0.0% | 78.2% | 79.1% | 75.0% | 1/2 | 1:09 |
4‑Mar‑2024 | Indian Wells Masters | Hard | R64 | 141 | 9 | (9)Casper Ruud [NOR] d. (Q)Klein | 6-4 7-6(4) | | 0.86 | 5.4% | 5.4% | 52.7% | 69.2% | 60.0% | 2/3 | 1:45 |
4‑Mar‑2024 | Indian Wells Masters | Hard | R128 | 141 | 166 | (Q)Klein d. (Q)Nicolas Moreno De Alboran [USA] | 7-6(8) 6-4 | | 1.27 | 8.0% | 5.3% | 54.7% | 90.2% | 50.0% | 4/5 | 1:45 |
4‑Mar‑2024 | Indian Wells Masters | Hard | Q2 | 141 | 143 | Klein d. Zachary Svajda [USA] | 6-4 6-7(6) 6-3 | | 1.13 | 3.1% | 5.1% | 58.2% | 64.9% | 51.2% | 1/5 | 2:08 |
4‑Mar‑2024 | Indian Wells Masters | Hard | Q1 | 141 | 95 | Klein d. (7)Maximilian Marterer [GER] | 6-2 6-4 | | 1.69 | 8.3% | 2.1% | 56.3% | 85.2% | 61.9% | 0/0 | 1:10 |
19‑Feb‑2024 | Doha | Hard | Q2 | 142 | 75 | (2)Alexandre Muller [FRA] d. (7)Klein | 6-4 6-4 | | 0.97 | 4.8% | 4.8% | 65.1% | 56.1% | 50.0% | 3/8 | 1:30 |
19‑Feb‑2024 | Doha | Hard | Q1 | 142 | 192 | (7)Klein d. Beibit Zhukayev [KAZ] | 6-4 6-3 | | 1.67 | 12.3% | 1.8% | 64.9% | 83.8% | 65.0% | 1/1 | 1:16 |
12‑Feb‑2024 | Manama CH | Hard | R32 | 140 | 229 | Marco Trungelliti [ARG] d. (6)Klein | 6-4 3-6 6-3 | | 1.32 | 6.6% | 0.0% | 68.4% | 76.9% | 58.3% | 3/5 | 2:18 |
2‑Feb‑2024 | Davis Cup QLS R1: SRB vs SVK | Clay | RR | 142 | 41 | Klein d. Miomir Kecmanovic [SRB] | 7-6(2) 6-2 | | 1.38 | 19.7% | 0.0% | 72.7% | 72.9% | 50.0% | 3/5 | 1:29 |
15‑Jan‑2024 | Australian Open | Hard | R64 | 163 | 6 | (6)Alexander Zverev [GER] d. (Q)Klein | 7-5 3-6 4-6 7-6(5) 7-6(7) | | 0.94 | 6.5% | 2.5% | 66.2% | 74.4% | 51.5% | 8/10 | 4:31 |
15‑Jan‑2024 | Australian Open | Hard | R128 | 163 | 697 | (Q)Klein d. Soon Woo Kwon [KOR] | 7-6(0) 4-6 7-6(3) 6-3 | | 1.13 | 11.9% | 4.4% | 69.6% | 73.4% | 51.2% | 6/10 | 3:10 |
15‑Jan‑2024 | Australian Open | Hard | Q3 | 163 | 228 | Klein d. Stefano Napolitano [ITA] | 7-6(2) 7-6(3) | | 1.80 | 27.4% | 1.4% | 71.2% | 82.7% | 81.0% | 2/2 | 1:46 |
15‑Jan‑2024 | Australian Open | Hard | Q2 | 163 | 164 | Klein d. Denis Kudla [USA] | 6-3 6-7(2) 6-4 | | 1.24 | 12.6% | 1.1% | 69.0% | 76.7% | 55.6% | 2/4 | 2:03 |
15‑Jan‑2024 | Australian Open | Hard | Q1 | 163 | 224 | Klein d. Marco Trungelliti [ARG] | 6-3 3-6 6-3 | | 1.08 | 9.8% | 0.0% | 67.4% | 62.9% | 70.0% | 8/10 | 1:59 |
1‑Jan‑2024 | Brisbane | Hard | R16 | 170 | 44 | Matteo Arnaldi [ITA] d. (Q)Klein | 6-4 3-6 7-5 | | 0.85 | 5.7% | 3.4% | 57.5% | 84.0% | 45.9% | 2/5 | 2:04 |
1‑Jan‑2024 | Brisbane | Hard | R32 | 170 | 28 | (Q)Klein d. (6)Sebastian Baez [ARG] | 4-6 6-3 6-4 | | 1.28 | 10.8% | 2.4% | 61.4% | 74.5% | 56.3% | 3/5 | 2:14 |
1‑Jan‑2024 | Brisbane | Hard | Q2 | 170 | 126 | Klein d. (11)Maxime Cressy [USA] | 4-6 7-6(8) 6-4 | | 1.15 | 9.9% | 2.0% | 70.3% | 81.7% | 53.3% | 3/4 | 2:43 |
1‑Jan‑2024 | Brisbane | Hard | Q1 | 170 | 100 | Klein d. (6)Quentin Halys [FRA] | 6-4 7-6(1) | | 0.95 | 5.2% | 1.3% | 70.1% | 75.9% | 60.9% | 5/5 | 1:55 |