| 121465 | Kalixpov - Koudelka | 1-0 | 16th of May 2020 12:37:39 | (chess) | unrated |
| 121470 | Koudelka - George | 1-0 | 31st of March 2020 19:50:48 | (chess) | unrated |
| 121474 | Dotey - Koudelka | 0-1 | 30th of March 2020 06:33:31 | (chess) | unrated |
| 121477 | Koudelka - Niglio | 1/2-1/2 | 24th of July 2020 09:50:32 | (chess) | unrated |
| 121479 | Frame - Koudelka | 0-1 | 24th of February 2020 12:54:36 | (chess) | unrated |
| 121481 | Koudelka - Foster | 0-1 | 16th of May 2020 00:23:09 | (chess) | unrated |
| 121484 | Duttagupta - Koudelka | 1-0 | 15th of July 2020 16:47:53 | (chess) | rated |
| 121489 | Koudelka - Chupalaeva | 1-0 | 25th of February 2020 04:52:09 | (chess) | rated |
| 121493 | Kalistratov - Koudelka | 0-1 | 9th of July 2020 11:07:22 | (chess) | rated |
| 121497 | Koudelka - Mikayla | 1-0 | 25th of February 2020 04:52:09 | (chess) | rated |
| 121498 | Dimitrov - Koudelka | 1-0 | 15th of September 2020 11:06:13 | (chess) | rated |
| 121499 | Koudelka - Cleto Junior | 0-1 | 21st of May 2020 22:45:10 | (chess) | rated |
| 121714 | Koudelka - Kuliy | 1/2-1/2 | 2nd of June 2020 02:51:15 | (chess) | rated |
| 121719 | Sternik - Koudelka | 1-0 | 21st of May 2020 06:30:24 | (chess) | rated |
| 121724 | Koudelka - Guralivu | 1-0 | 9th of March 2020 12:00:40 | (chess) | rated |
| 121725 | Faust - Koudelka | 1-0 | 21st of May 2020 06:30:47 | (chess) | rated |
| 121726 | Koudelka - Salonen | 0-1 | 17th of May 2020 05:33:25 | (chess) | rated |
| 121727 | Frenkel - Koudelka | 1-0 | 21st of May 2020 06:31:00 | (chess) | rated |
| 122216 | Koudelka - Hamdy | 1-0 | 11th of April 2020 03:46:27 | (chess) | rated |
| 122221 | Slawomir - Koudelka | 1-0 | 17th of May 2020 02:29:02 | (chess) | rated |
| 122225 | Koudelka - Cirulis | 0-1 | 22nd of May 2020 12:05:05 | (chess) | rated |
| 122228 | Duttagupta - Koudelka | 1-0 | 17th of May 2020 05:33:41 | (chess) | rated |
| 122230 | Koudelka - Rodriguez Perez | 0-1 | 22nd of July 2020 04:11:51 | (chess) | rated |
| 122231 | Haddad - Koudelka | 0-1 | 16th of April 2020 02:22:10 | (chess) | rated |
| 122336 | Frenkel - Koudelka | 1-0 | 23rd of May 2020 03:20:35 | (chess) | rated |
| 122344 | Koudelka - Broekhuizen | 0-1 | 23rd of May 2020 00:12:43 | (chess) | rated |
| 122345 | Pech - Koudelka | 1-0 | 20th of June 2020 12:59:48 | (chess) | rated |
| 122346 | Koudelka - Pech | 0-1 | 23rd of June 2020 21:59:08 | (chess) | rated |
| 122347 | Bernard - Koudelka | 0-1 | 1st of April 2020 09:26:20 | (chess) | rated |
| 122348 | Koudelka - Trigance | 0-1 | 20th of May 2020 17:29:56 | (chess) | rated |
| 122349 | Piantadosi - Koudelka | 1-0 | 24th of June 2020 03:10:51 | (chess) | rated |
| 122350 | Koudelka - Puzanov | 0-1 | 23rd of May 2020 00:12:43 | (chess) | rated |
| 124325 | Koudelka - Kuliy | 1/2-1/2 | 15th of August 2020 20:27:34 | (chess) | rated |
| 124330 | Wilson - Koudelka | 1/2-1/2 | 18th of August 2020 10:11:54 | (chess) | rated |
| 124334 | Koudelka - Nemchenko | 0-1 | 6th of September 2020 13:14:28 | (chess) | rated |
| 124337 | Duttagupta - Koudelka | 1-0 | 6th of March 2021 10:58:10 | (chess) | rated |
| 124339 | Koudelka - Sternik | 0-1 | 4th of September 2020 09:38:30 | (chess) | rated |
| 124340 | Wilson - Koudelka | 0-1 | 2nd of July 2020 13:14:27 | (chess) | rated |
| 124383 | Haachizo - Koudelka | 0-1 | 23rd of June 2020 23:09:36 | (chess) | rated |
| 124389 | Koudelka - Michaud | 0-1 | 12th of July 2020 03:21:37 | (chess) | rated |
| 124390 | Koslowski - Koudelka | 1-0 | 17th of September 2020 03:06:43 | (chess) | rated |
| 124391 | Koudelka - Faust | 0-1 | 21st of August 2020 01:45:20 | (chess) | rated |
| 124392 | Kuliy - Koudelka | 1-0 | 28th of July 2020 00:47:19 | (chess) | rated |
| 124393 | Koudelka - Cleto Junior | 1/2-1/2 | 5th of August 2020 17:32:08 | (chess) | rated |
| 124446 | Falguera - Koudelka | 0-1 | 27th of June 2020 18:11:27 | (chess) | rated |
| 124452 | Koudelka - Dhiman | 1-0 | 30th of June 2020 12:47:40 | (chess) | rated |
| 124453 | Budd - Koudelka | 0-1 | 27th of June 2020 18:11:27 | (chess) | rated |
| 124454 | Koudelka - Quintero | 1-0 | 5th of October 2020 09:03:55 | (chess) | rated |
| 124455 | Khan - Koudelka | 0-1 | 27th of June 2020 18:11:27 | (chess) | rated |
| 124456 | Koudelka - Gossmann | 0-1 | 12th of July 2020 03:21:37 | (chess) | rated |
| 124490 | Nemchenko - Koudelka | 1-0 | 20th of September 2020 18:14:55 | (chess) | rated |
| 124496 | Koudelka - Ward | 0-1 | 14th of July 2020 21:16:03 | (chess) | rated |
| 124497 | Bovary - Koudelka | 1-0 | 26th of August 2020 19:47:23 | (chess) | rated |
| 124498 | Koudelka - Eser | 0-1 | 20th of July 2020 23:12:10 | (chess) | rated |
| 124499 | Domingo - Koudelka | 1-0 | 23rd of July 2020 08:17:15 | (chess) | rated |
| 124500 | Koudelka - Faust | 1-0 | 8th of November 2020 15:21:05 | (chess) | rated |
| 124596 | Koudelka - Quintero | 1-0 | 31st of August 2020 03:55:20 | (chess) | rated |
| 124601 | Block - Koudelka | 1-0 | 28th of July 2020 00:50:12 | (chess) | rated |
| 124606 | Koudelka - Delgado | 1-0 | 14th of July 2020 09:13:18 | (chess) | rated |
| 124607 | Pelzer - Koudelka | 1-0 | 10th of August 2020 09:03:45 | (chess) | rated |
| 124608 | Koudelka - Scheen Vasseur | 1-0 | 14th of July 2020 09:13:18 | (chess) | rated |
| 124609 | Cabrera - Koudelka | 0-1 | 16th of July 2020 23:49:20 | (chess) | rated |
| 124742 | Koudelka - Nemchenko | 1-0 | 8th of November 2020 08:28:23 | (chess) | rated |
| 124743 | Ruiz - Koudelka | 0-1 | 20th of July 2020 23:12:10 | (chess) | rated |
| 124744 | Koudelka - Michaud | 0-1 | 18th of September 2020 00:03:22 | (chess) | rated |
| 124745 | Slawomir - Koudelka | 1-0 | 23rd of July 2020 01:36:11 | (chess) | rated |
| 124746 | Koudelka - Spagnoli | 1/2-1/2 | 17th of December 2020 00:22:36 | (chess) | rated |
| 124747 | Rodriguez Perez - Koudelka | 1-0 | 1st of August 2020 03:06:51 | (chess) | rated |
| 124768 | Koudelka - Kehayov | 0-1 | 13th of September 2020 16:53:37 | (chess) | unrated |
| 124773 | Tokarev - Koudelka | 0-1 | 24th of July 2020 06:45:05 | (chess) | unrated |
| 124777 | Koudelka - Goldmund | 0-1 | 5th of September 2020 00:06:04 | (chess) | unrated |
| 124780 | Schuett - Koudelka | 1-0 | 21st of October 2020 10:32:55 | (chess) | unrated |
| 124782 | Koudelka - Csoma | 1-0 | 3rd of November 2020 11:36:15 | (chess) | unrated |
| 124783 | Sternik - Koudelka | 1/2-1/2 | 31st of May 2021 18:53:44 | (chess) | unrated |
| 124852 | Koudelka - Sternik | 0-1 | 6th of September 2020 06:07:18 | (chess) | rated |
| 124857 | Moreira - Koudelka | 1-0 | 31st of August 2020 10:34:53 | (chess) | rated |
| 124861 | Koudelka - Kuliy | 1/2-1/2 | 3rd of September 2020 10:20:00 | (chess) | rated |
| 124864 | Bovary - Koudelka | 0-1 | 11th of October 2020 09:42:37 | (chess) | rated |
| 124867 | Koudelka - Maron | 0-1 | 10th of August 2020 09:03:45 | (chess) | rated |
| 124868 | Duttagupta - Koudelka | 1-0 | 12th of September 2020 04:18:46 | (chess) | rated |
| 127137 | Flores - Koudelka | 1-0 | 25th of April 2021 15:51:13 | (chess) | rated |
| 127144 | Koudelka - Hallqvist | 1/2-1/2 | 14th of May 2021 22:30:32 | (chess) | rated |
| 127150 | Borisovs - Koudelka | 1/2-1/2 | 25th of March 2021 09:59:33 | (chess) | rated |
| 127155 | Koudelka - Bovary | 0-1 | 23rd of April 2021 15:54:29 | (chess) | rated |
| 127159 | Bonoldi - Koudelka | 1/2-1/2 | 30th of April 2021 08:09:18 | (chess) | rated |
| 127163 | Koudelka - Pechova | 1/2-1/2 | 14th of May 2021 03:33:11 | (chess) | rated |
| 127164 | Csoma - Koudelka | 0-1 | 8th of January 2021 21:30:21 | (chess) | rated |
| 127165 | Koudelka - Kehayov | 1-0 | 1st of March 2021 17:54:26 | (chess) | rated |
| 129364 | Rita - Koudelka | 1-0 | 11th of July 2021 01:15:46 | (chess) | rated |
| 129367 | Koudelka - Helmer | 0-1 | 10th of July 2021 19:22:20 | (chess) | rated |
| 129369 | Dyson - Koudelka | 1-0 | 20th of July 2021 15:03:11 | (chess) | rated |
| 129371 | Koudelka - Hilton | 1-0 | 24th of June 2021 16:50:09 | (chess) | rated |
| 131105 | Koudelka - Wiaderek | 0-1 | 21st of November 2021 05:17:28 | (chess) | unrated |
| 131110 | Tedoldi - Koudelka | 1-0 | 19th of October 2021 21:07:04 | (chess) | unrated |
| 131114 | Koudelka - Ward | 0-1 | 26th of November 2021 07:21:06 | (chess) | unrated |
| 131117 | Humphries - Koudelka | 0-1 | 11th of November 2021 02:04:16 | (chess) | unrated |
| 131119 | Koudelka - Gohmes | 1-0 | 3rd of September 2021 11:01:01 | (chess) | unrated |
| 131120 | Foster - Koudelka | 1-0 | 14th of April 2022 13:32:43 | (chess) | unrated |
| 131237 | Koudelka - Cesbron | 1-0 | 6th of November 2021 02:32:16 | (chess) | rated |
| 131238 | Cesbron - Koudelka | 1-0 | 28th of August 2021 22:19:57 | (chess) | rated |
| 131243 | Wilson - Koudelka | 1-0 | 15th of October 2021 22:45:41 | (chess) | rated |
| 131244 | Koudelka - Wilson | 0-1 | 20th of September 2021 05:40:09 | (chess) | rated |
| 131249 | Koudelka - Pech | 0-1 | 7th of October 2021 01:19:19 | (chess) | rated |
| 131250 | Pech - Koudelka | 0-1 | 15th of October 2021 06:54:22 | (chess) | rated |
| 131251 | Vollmer - Koudelka | 1-0 | 17th of August 2021 09:00:19 | (chess) | rated |
| 131252 | Koudelka - Vollmer | 0-1 | 17th of August 2021 09:01:06 | (chess) | rated |
| 134453 | Eser - Koudelka | 1-0 | 1st of April 2022 18:58:06 | (chess) | rated |
| 134458 | Koudelka - Talek | 1-0 | 14th of May 2022 07:48:39 | (chess) | rated |
| 134462 | Benes - Koudelka | 0-1 | 27th of April 2022 18:15:17 | (chess) | rated |
| 134465 | Koudelka - Trigance | 1-0 | 10th of August 2022 15:24:32 | (chess) | rated |
| 134467 | Dyson - Koudelka | 1-0 | 15th of April 2022 05:12:37 | (chess) | rated |
| 134469 | Koudelka - Swiatek | 1/2-1/2 | 3rd of January 2023 15:04:41 | (chess) | rated |
| 134495 | Ozen - Koudelka | 1-0 | 14th of April 2022 13:32:43 | (chess) | unrated |
| 134500 | Koudelka - Gounant | 0-1 | 12th of April 2022 02:09:37 | (chess) | unrated |
| 134504 | Brand Lyard - Koudelka | 1-0 | 1st of April 2022 16:29:43 | (chess) | unrated |
| 134507 | Koudelka - Goletto | 1-0 | 8th of May 2022 05:48:39 | (chess) | unrated |
| 134509 | Csoma - Koudelka | 1-0 | 15th of April 2022 17:43:26 | (chess) | unrated |
| 134511 | Koudelka - Javier | 0-1 | 19th of June 2022 18:40:20 | (chess) | unrated |
| 134516 | Czudek - Koudelka | 1-0 | 8th of July 2022 06:53:18 | (chess) | unrated |
| 134521 | Koudelka - Cruz Ramirez | 1-0 | 6th of August 2022 16:30:02 | (chess) | unrated |
| 134525 | Dominguez Rodriguez - Koudelka | 1/2-1/2 | 3rd of October 2022 09:46:49 | (chess) | unrated |
| 134528 | Koudelka - Brand Lyard | 0-1 | 1st of April 2022 22:54:34 | (chess) | unrated |
| 134530 | Csoma - Koudelka | 1-0 | 27th of April 2022 05:53:46 | (chess) | unrated |
| 134532 | Koudelka - Andreoni | 0-1 | 11th of June 2022 12:49:20 | (chess) | unrated |
| 135086 | Hallqvist - Koudelka | 1/2-1/2 | 18th of September 2022 21:11:59 | (chess) | rated |
| 135091 | Koudelka - Dyson | 1-0 | 19th of June 2022 18:40:20 | (chess) | rated |
| 135095 | Bussoli - Koudelka | 1-0 | 15th of September 2022 00:04:40 | (chess) | rated |
| 135099 | Koudelka - Olesinski | 1-0 | 17th of April 2022 20:18:18 | (chess) | rated |
| 135100 | Wagschal - Koudelka | 0-1 | 14th of May 2022 07:48:39 | (chess) | rated |
| 135101 | Koudelka - Kehayov | 1-0 | 22nd of July 2022 10:16:06 | (chess) | rated |
| 136757 | Eldridge - Koudelka | 1-0 | 1st of December 2022 03:37:38 | (chess) | rated |
| 136762 | Koudelka - Cirulis | 1/2-1/2 | 27th of September 2022 02:37:33 | (chess) | rated |
| 136766 | Mirra - Koudelka | 1-0 | 2nd of October 2022 07:24:41 | (chess) | rated |
| 136769 | Koudelka - DeBonis | 1/2-1/2 | 26th of September 2022 17:20:42 | (chess) | rated |
| 136771 | Chronopoulos - Koudelka | 1-0 | 13th of September 2022 06:54:31 | (chess) | rated |
| 136773 | Koudelka - Detchin | 1/2-1/2 | 4th of October 2022 02:30:11 | (chess) | rated |
| 138661 | Nimylovych - Koudelka | 0-1 | 28th of May 2023 02:56:37 | (chess) | rated |
| 138662 | Koudelka - Nimylovych | 1-0 | 24th of May 2023 21:57:04 | (chess) | rated |
| 138667 | Koudelka - Serov | 1-0 | 21st of December 2022 02:17:54 | (chess) | rated |
| 138668 | Serov - Koudelka | 0-1 | 21st of December 2022 01:49:20 | (chess) | rated |
| 138671 | Pechova - Koudelka | 1/2-1/2 | 19th of September 2023 12:52:33 | (chess) | rated |
| 138672 | Koudelka - Pechova | 1-0 | 2nd of April 2023 06:08:47 | (chess) | rated |
| 138675 | Koudelka - Marcel | 1-0 | 29th of December 2022 17:48:22 | (chess) | rated |
| 138676 | Marcel - Koudelka | 0-1 | 30th of December 2022 08:41:40 | (chess) | rated |
| 141724 | Koudelka - Gounant | 1/2-1/2 | 15th of November 2023 09:16:50 | (chess) | rated |
| 141729 | Pech - Koudelka | 1/2-1/2 | 24th of December 2023 00:02:19 | (chess) | rated |
| 141734 | Koudelka - Cabrera | 1-0 | 5th of November 2023 20:38:31 | (chess) | rated |
| 141735 | Bonoldi - Koudelka | 0-1 | 29th of December 2023 08:26:13 | (chess) | rated |
| 141736 | Koudelka - Pintor | 1-0 | 16th of September 2023 21:36:14 | (chess) | rated |
| 141737 | Phillips - Koudelka | 0-1 | 27th of August 2023 13:23:17 | (chess) | rated |
| 142833 | Koudelka - Gray | 1/2-1/2 | 10th of January 2024 14:32:08 | (chess) | rated |
| 142838 | Mesquita Jr. - Koudelka | 1/2-1/2 | 15th of March 2024 22:27:03 | (chess) | rated |
| 142842 | Koudelka - Bussoli | 1/2-1/2 | 9th of January 2024 18:38:11 | (chess) | rated |
| 142845 | LaDuke - Koudelka | 1/2-1/2 | 21st of January 2024 14:50:09 | (chess) | rated |
| 142847 | Koudelka - Javier | 1/2-1/2 | 6th of January 2024 11:29:03 | (chess) | rated |
| 142848 | Ploscaru - Koudelka | 1/2-1/2 | 11th of January 2024 18:12:42 | (chess) | rated |
| 143396 | Koudelka - Denisov | 1/2-1/2 | 1st of June 2024 22:58:44 | (chess) | rated |
| 143397 | Denisov - Koudelka | 1-0 | 14th of July 2024 21:33:17 | (chess) | rated |
| 143402 | LaDuke - Koudelka | 1/2-1/2 | 26th of March 2024 01:45:59 | (chess) | rated |
| 143403 | Koudelka - LaDuke | 0-1 | 19th of January 2024 05:27:06 | (chess) | rated |
| 143408 | Koudelka - Pechova | 1/2-1/2 | 6th of July 2024 03:02:09 | (chess) | rated |
| 143409 | Pechova - Koudelka | 1-0 | 6th of April 2024 09:58:13 | (chess) | rated |
| 143410 | Cafiero - Koudelka | 1/2-1/2 | 26th of March 2024 17:59:36 | (chess) | rated |
| 143411 | Koudelka - Cafiero | 1-0 | 1st of March 2024 06:24:23 | (chess) | rated |
| 144610 | Koudelka - Swiatek | 1/2-1/2 | 10th of August 2024 11:11:22 | (chess) | rated |
| 144615 | Detchin - Koudelka | 1/2-1/2 | 24th of July 2024 05:15:21 | (chess) | rated |
| 144620 | Koudelka - Pechova | 0-1 | 1st of August 2024 03:26:11 | (chess) | rated |
| 144621 | Wilson - Koudelka | 1/2-1/2 | 30th of July 2024 09:54:01 | (chess) | rated |
| 144622 | Koudelka - Schangareev | 0-1 | 1st of August 2024 03:27:05 | (chess) | rated |
| 144623 | Tedoldi - Koudelka | 0-1 | 17th of July 2024 00:14:24 | (chess) | rated |
| 147399 | Koudelka - Chronopoulos | 1/2-1/2 | 1st of May 2025 23:11:12 | (chess) | rated |
| 147406 | Schroeder - Koudelka | 1-0 | 18th of June 2025 14:21:51 | (chess) | rated |
| 147412 | Koudelka - Wosch | 0-1 | 25th of April 2025 00:23:38 | (chess) | rated |
| 147417 | Pechova - Koudelka | 1-0 | 18th of June 2025 14:21:51 | (chess) | rated |
| 147422 | Koudelka - Mach | 1-0 | 4th of June 2025 01:11:35 | (chess) | rated |
| 147423 | Cabrera - Koudelka | 1-0 | 1st of June 2025 20:31:47 | (chess) | rated |
| 147424 | Koudelka - Petrovich | 1/2-1/2 | 20th of July 2025 11:24:36 | (chess) | rated |
| 147425 | Dittmer - Koudelka | 0-1 | 12th of February 2025 13:29:08 | (chess) | rated |
| 149624 | Koudelka - Ozen | 1/2-1/2 | 5th of November 2025 14:53:10 | (chess) | rated |
| 149629 | Rodriguez - Koudelka | 1/2-1/2 | 26th of November 2025 04:25:39 | (chess) | rated |
| 149634 | Koudelka - Cleto Junior | 1-0 | 25th of October 2025 07:04:55 | (chess) | rated |
| 149635 | Johansen - Koudelka | 0-1 | 3rd of November 2025 14:11:25 | (chess) | rated |
| 149636 | Koudelka - Cirulis | 1/2-1/2 | 24th of December 2025 05:07:08 | (chess) | rated |
| 149637 | Jempty - Koudelka | 1-0 | 28th of October 2025 00:54:49 | (chess) | rated |
| 150206 | Orlov - Koudelka | 1-0 | 31st of January 2026 18:56:59 | (chess) | rated |
| 150207 | Koudelka - Orlov | 0-1 | 31st of January 2026 18:56:59 | (chess) | rated |
| 150212 | Koudelka - Kachibacha | 1/2-1/2 | 10th of March 2026 16:20:48 | (chess) | rated |
| 150213 | Kachibacha - Koudelka | 1/2-1/2 | 2nd of May 2026 15:45:38 | (chess) | rated |
| 150216 | Fox - Koudelka | 1-0 | 8th of January 2026 13:53:53 | (chess) | rated |
| 150217 | Koudelka - Fox | 1/2-1/2 | 12th of February 2026 00:59:19 | (chess) | rated |
| 150220 | Koudelka - Alencar | 1-0 | 10th of December 2025 10:41:16 | (chess) | rated |
| 150221 | Alencar - Koudelka | 0-1 | 24th of December 2025 09:35:04 | (chess) | rated |
| 151891 | Swiatek - Koudelka | 1-0 | 10th of July 2026 22:13:58 | (chess) | rated |
| 151898 | Koudelka - Ozen | 1/2-1/2 | 27th of May 2026 03:56:00 | (chess) | rated |
| 151904 | Talek - Koudelka | 0-1 | 21st of June 2026 13:34:08 | (chess) | rated |
| 151910 | Koudelka - Pechova | * | | (chess) | rated |
| 151911 | Guralivu - Koudelka | 1-0 | 10th of July 2026 22:20:26 | (chess) | rated |
| 151912 | Koudelka - Mach | * | | (chess) | rated |
| 151913 | Nemchenko - Koudelka | * | | (chess) | rated |
| 151914 | Koudelka - Alencar | 1-0 | 16th of May 2026 17:34:53 | (chess) | rated |