15‑Nov‑2021 | Pau CH | Hard | Q2 | 392 | 340 | (2)Michael Geerts [BEL] d. (5)Rosenkranz | 7-6(6) 6-4 | | 0.76 | 14.5% | 4.8% | 57.8% | 75.0% | 42.9% | 7/9 | 1:54 |
15‑Nov‑2021 | Pau CH | Hard | Q1 | 392 | 499 | (5)Rosenkranz d. (Alt)Kenny De Schepper [FRA] | 6-4 6-4 | | 1.31 | 12.1% | 6.9% | 56.9% | 84.8% | 56.0% | 3/3 | 1:19 |
8‑Nov‑2021 | Ortisei CH | Hard | Q1 | 394 | 913 | (WC)Marcello Serafini [ITA] d. (6)Rosenkranz | 7-6(3) 7-6(4) | | 1.28 | 17.4% | 4.3% | 59.4% | 82.9% | 64.3% | 0/0 | 1:32 |
1‑Nov‑2021 | Eckental CH | Hard | R32 | 376 | 68 | (1)Jordan Thompson [AUS] d. (WC)Rosenkranz | 7-5 6-7(2) 7-6(5) | | 0.90 | 14.0% | 4.7% | 57.4% | 78.4% | 45.5% | 8/10 | 2:41 |
25‑Oct‑2021 | Ismaning CH | Hard | R16 | 394 | 204 | Maximilian Marterer [GER] d. (WC)Rosenkranz | 6-3 7-6(3) | | 0.66 | 17.8% | 9.6% | 63.0% | 69.6% | 44.4% | 7/8 | 1:18 |
25‑Oct‑2021 | Ismaning CH | Hard | R32 | 394 | 189 | (WC)Rosenkranz d. Marc Andrea Huesler [SUI] | 6-7(2) 6-2 7-6(0) | | 1.06 | 13.9% | 5.6% | 63.0% | 80.9% | 50.0% | 10/11 | 1:55 |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | SF | 486 | 114 | (8)Norbert Gombos [SVK] d. (Q)Rosenkranz | 6-4 7-6(4) | | 0.65 | 26.4% | 3.4% | 67.8% | 72.9% | 42.9% | 7/8 | 1:23 |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | QF | 486 | 100 | (Q)Rosenkranz d. (6)Pierre Hugues Herbert [FRA] | 6-7(2) 6-3 7-6(4) | | 1.17 | 20.6% | 1.0% | 67.6% | 78.3% | 66.7% | 0/0 | 2:02 |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | R16 | 486 | 119 | (Q)Rosenkranz d. Kamil Majchrzak [POL] | 6-4 3-1 RET | | 2.54 | 11.8% | 0.0% | 79.4% | 85.2% | 71.4% | 0/0 | 0:56 |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | R32 | 486 | 63 | (Q)Rosenkranz d. (1)Benjamin Bonzi [FRA] | 7-6(4) 6-4 | | 1.43 | 28.1% | 0.0% | 70.3% | 86.7% | 47.4% | 2/3 | 1:19 |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | Q2 | 486 | 1311 | (8)Rosenkranz d. (Alt)Szymon Walkow [POL] | 6-7(1) 7-6(5) 7-6(2) | | 0.97 | 27.6% | 0.9% | 69.8% | 80.2% | 57.1% | 7/8 | |
4‑Oct‑2021 | Mouilleron-Le-Captif CH | Hard | Q1 | 486 | 1242 | (8)Rosenkranz d. (Alt)Nathaniel Lammons [USA] | 6-4 4-6 7-6(4) | | 1.07 | 19.1% | 2.1% | 61.7% | 82.8% | 47.2% | 8/11 | |
27‑Sep‑2021 | Murcia CH | Clay | R16 | 528 | 321 | Miljan Zekic [SRB] d. (Q)Rosenkranz | 6-4 6-4 | | 0.84 | 7.8% | 7.8% | 50.0% | 78.1% | 50.0% | 4/6 | 1:32 |
27‑Sep‑2021 | Murcia CH | Clay | R32 | 528 | 346 | (Q)Rosenkranz d. Matteo Martineau [FRA] | 6-0 6-4 | | 1.94 | 8.9% | 6.7% | 64.4% | 79.3% | 62.5% | 0/0 | 1:09 |
27‑Sep‑2021 | Murcia CH | Clay | Q2 | 528 | 445 | (6)Rosenkranz d. (4)Nicolas Alvarez Varona [ESP] | 6-7(5) 6-1 4-1 RET | | 1.45 | 16.0% | 4.9% | 65.4% | 75.5% | 57.1% | 4/5 | 2:03 |
27‑Sep‑2021 | Murcia CH | Clay | Q1 | 528 | 773 | (6)Rosenkranz d. (WC)Alberto Barroso Campos [ESP] | 6-2 7-6(1) | | 1.12 | 5.8% | 7.0% | 64.0% | 70.9% | 45.2% | 10/11 | 1:37 |
20‑Sep‑2021 | M25 Jonkoping | Hard | R16 | 517 | 285 | (1)Evgeny Karlovskiy [RUS] d. Rosenkranz | 6-4 6-3 | | | | | | | | | |
20‑Sep‑2021 | M25 Jonkoping | Hard | R32 | 517 | 1102 | Rosenkranz d. Marius Ruzgas [SWE] | 7-5 7-5 | | | | | | | | | |
13‑Sep‑2021 | Rennes CH | Hard | R32 | 527 | 162 | Kacper Zuk [POL] d. (LL)Rosenkranz | 7-5 6-3 | | 0.66 | 3.0% | 9.0% | 46.3% | 71.0% | 44.4% | 2/6 | 1:16 |
13‑Sep‑2021 | Rennes CH | Hard | Q2 | 527 | 276 | (1)Manuel Guinard [FRA] d. (8)Rosenkranz | 6-2 6-3 | | 0.92 | 11.1% | 2.2% | 66.7% | 63.3% | 53.3% | 3/6 | 1:12 |
13‑Sep‑2021 | Rennes CH | Hard | Q1 | 527 | | (8)Rosenkranz d. (Alt)Purav Raja [IND] | 6-0 6-1 | | 2.57 | 16.2% | 5.4% | 51.4% | 94.7% | 50.0% | 3/3 | |
6‑Sep‑2021 | Seville CH | Clay | Q2 | 554 | 475 | (5)Lucas Gerch [GER] d. Rosenkranz | 6-3 5-7 6-4 | | 0.86 | 8.0% | 3.4% | 67.8% | 74.6% | 57.1% | 4/6 | 1:59 |
6‑Sep‑2021 | Seville CH | Clay | Q1 | 554 | 472 | Rosenkranz d. (4)Pol Martin Tiffon [ESP] | 6-4 7-6(4) | | 1.43 | 12.5% | 0.0% | 56.3% | 80.6% | 78.6% | 2/2 | |
30‑Aug‑2021 | M15 Allershausen | Clay | SF | 554 | 1369 | Guy Den Ouden [NED] d. (3)Rosenkranz | 6-4 4-6 6-4 | | | | | | | | | |
30‑Aug‑2021 | M15 Allershausen | Clay | QF | 554 | 896 | (3)Rosenkranz d. Dominik Boehler [GER] | 5-7 6-3 6-3 | | | | | | | | | |
30‑Aug‑2021 | M15 Allershausen | Clay | R16 | 554 | 1247 | (3)Rosenkranz d. (Q)Niklas Schell [GER] | 6-3 7-6(3) | | | | | | | | | |
30‑Aug‑2021 | M15 Allershausen | Clay | R32 | 554 | | (3)Rosenkranz d. Mika Lipp [GER] | 6-1 6-2 | | | | | | | | | |
23‑Aug‑2021 | M25 Trier | Clay | R32 | 551 | 799 | Constantin Schmitz [GER] d. (6)Rosenkranz | 6-1 6-1 | | | | | | | | | |
16‑Aug‑2021 | M15 Oldenzaal | Clay | R32 | 563 | 1601 | (Q)Giles Hussey [GBR] d. (1)Rosenkranz | 6-3 5-7 6-4 | | | | | | | | | |
9‑Aug‑2021 | Meerbusch CH | Clay | R32 | 533 | 143 | (4)Oscar Otte [GER] d. (WC)Rosenkranz | 6-4 6-4 | | 0.40 | 2.9% | 2.9% | 68.6% | 66.7% | 45.5% | 4/6 | 1:15 |
2‑Aug‑2021 | M25 Wetzlar | Clay | R16 | 534 | 415 | (6)Christopher Heyman [BEL] d. Rosenkranz | 6-4 7-6(4) | | | | | | | | | |
2‑Aug‑2021 | M25 Wetzlar | Clay | R32 | 534 | 556 | Rosenkranz d. Mariano Kestelboim [ARG] | 7-5 6-2 | | | | | | | | | |
26‑Jul‑2021 | M15 Vejle | Clay | R16 | 537 | 1064 | (WC)August Holmgren [DEN] d. (2)Rosenkranz | 6-2 7-6(4) | | | | | | | | | |
26‑Jul‑2021 | M15 Vejle | Clay | R32 | 537 | 1194 | (2)Rosenkranz d. (Q)Yannik Steinegger [SUI] | 6-1 3-6 6-4 | | | | | | | | | |
19‑Jul‑2021 | M15 EschAlzette | Clay | R32 | 534 | 1106 | (Q)Raphael Collignon [BEL] d. (5)Rosenkranz | 6-3 6-2 | | | | | | | | | |
12‑Jul‑2021 | Hamburg | Clay | Q1 | 532 | 127 | (2)Thiago Seyboth Wild [BRA] d. (WC)Rosenkranz | 6-3 6-1 | | 0.40 | 9.4% | 3.8% | 64.2% | 55.9% | 42.1% | 6/10 | 0:57 |
5‑Jul‑2021 | Braunschweig CH | Clay | R32 | 544 | 137 | (5)Henri Laaksonen [SUI] d. (Q)Rosenkranz | 6-3 6-2 | | 0.64 | 2.2% | 6.5% | 58.7% | 63.0% | 26.3% | 2/6 | 1:03 |
5‑Jul‑2021 | Braunschweig CH | Clay | Q2 | 544 | 441 | (WC)Rosenkranz d. Benjamin Hassan [GER] | 6-2 6-2 | | 1.74 | 15.6% | 2.2% | 46.7% | 66.7% | 79.2% | 1/1 | |
5‑Jul‑2021 | Braunschweig CH | Clay | Q1 | 544 | 394 | (WC)Rosenkranz d. (8)Facundo Diaz Acosta [ARG] | 3-6 7-6(2) 7-6(6) | | 0.98 | 11.7% | 5.4% | 54.1% | 78.3% | 51.0% | 7/9 | |
21‑Jun‑2021 | M25 Alkmaar | Clay | R16 | 544 | 640 | (Q)Kai Wehnelt [GER] d. (Q)Rosenkranz | 1-6 6-4 7-5 | | | | | | | | | |
21‑Jun‑2021 | M25 Alkmaar | Clay | R32 | 544 | 373 | (Q)Rosenkranz d. (7)Hernan Casanova [ARG] | 6-4 7-6(7) | | | | | | | | | |
7‑Jun‑2021 | M15 Gaiba | Grass | F | 578 | 460 | Rosenkranz d. (5)Benjamin Lock [ZIM] | 7-6(11) 7-6(5) | | | | | | | | | |
7‑Jun‑2021 | M15 Gaiba | Grass | SF | 578 | 759 | Rosenkranz d. (WC)Kirill Kivattsev [RUS] | 6-2 6-4 | | | | | | | | | |
7‑Jun‑2021 | M15 Gaiba | Grass | QF | 578 | 608 | Rosenkranz d. Arthur Reymond [FRA] | 7-6(3) 6-3 | | | | | | | | | |
7‑Jun‑2021 | M15 Gaiba | Grass | R16 | 578 | 728 | Rosenkranz d. (Q)Giorgio Ricca [ITA] | 7-6(4) 4-6 6-3 | | | | | | | | | |
7‑Jun‑2021 | M15 Gaiba | Grass | R32 | 578 | 436 | Rosenkranz d. (4)Marek Gengel [CZE] | 4-6 7-5 6-1 | | | | | | | | | |
31‑May‑2021 | M15 Skopje | Clay | R32 | 578 | 661 | Alexander Weis [ITA] d. (8)Rosenkranz | 6-4 2-6 6-0 | | | | | | | | | |
24‑May‑2021 | M15 Marbella | Hard | R16 | 576 | 1259 | (Q)Alejandro Moro Canas [ESP] d. (7)Rosenkranz | 7-6(1) 7-5 | | | | | | | | | |
24‑May‑2021 | M15 Marbella | Hard | R32 | 576 | 1202 | (7)Rosenkranz d. (Q)John Echeverria [ESP] | 7-5 7-6(6) | | | | | | | | | |
17‑May‑2021 | M25 Jablonec nad Nisou | Clay | R16 | 578 | 330 | Evan Furness [FRA] d. Rosenkranz | 6-3 6-4 | | | | | | | | | |
26‑Apr‑2021 | M15 Antalya | Clay | R16 | 568 | 433 | (3)Christopher Heyman [BEL] d. Rosenkranz | 4-6 6-4 7-5 | | | | | | | | | |
26‑Apr‑2021 | M15 Antalya | Clay | R32 | 568 | | Rosenkranz d. (Q)Matias Ponce De Leon Gomila [ESP] | 6-3 6-3 | | | | | | | | | |
19‑Apr‑2021 | M15 Antalya | Clay | R32 | 566 | 2035 | (Q)Samuel Vincent Ruggeri [ITA] d. Rosenkranz | 4-6 6-3 6-0 | | | | | | | | | |
8‑Feb‑2021 | M15 Nur-Sultan | Hard | QF | 575 | 436 | (2)Francesco Forti [ITA] d. Rosenkranz | 3-6 7-6(8) 6-3 | | | | | | | | | |
8‑Feb‑2021 | M15 Nur-Sultan | Hard | R16 | 575 | 561 | Rosenkranz d. (8)Roy Smith [USA] | 3-6 6-4 7-5 | | | | | | | | | |
8‑Feb‑2021 | M15 Nur-Sultan | Hard | R32 | 575 | | Rosenkranz d. (WC)Bekzat Usipbekov [KAZ] | 6-3 6-3 | | | | | | | | | |
1‑Feb‑2021 | M15 Nur-Sultan | Hard | F | 575 | 617 | Otto Virtanen [FIN] d. Rosenkranz | 7-5 6-3 | | | | | | | | | |
1‑Feb‑2021 | M15 Nur-Sultan | Hard | SF | 575 | 599 | Rosenkranz d. Aleksandre Metreveli [GEO] | 5-7 6-2 6-4 | | | | | | | | | |
1‑Feb‑2021 | M15 Nur-Sultan | Hard | QF | 575 | 619 | Rosenkranz d. Eric Vanshelboim [UKR] | 6-3 7-6(3) | | | | | | | | | |
1‑Feb‑2021 | M15 Nur-Sultan | Hard | R16 | 575 | 1002 | Rosenkranz d. (Q)Mikalai Haliak [BLR] | 6-4 6-3 | | | | | | | | | |
1‑Feb‑2021 | M15 Nur-Sultan | Hard | R32 | 575 | | Rosenkranz d. (WC)Rodion Pak [KAZ] | 6-1 7-5 | | | | | | | | | |