| 103582 | Tkac - Coggiola | 0-1 | 19th of March 2018 14:54:40 | (chess) | rated |
| 103587 | Cough - Tkac | 0-1 | 12th of April 2018 20:55:08 | (chess) | rated |
| 103591 | Tkac - Leurette | 0-1 | 16th of March 2018 13:26:42 | (chess) | rated |
| 103594 | Bromo - Tkac | 1-0 | 15th of March 2018 11:35:31 | (chess) | rated |
| 103596 | Tkac - Goldmund | 0-1 | 19th of March 2018 14:55:12 | (chess) | rated |
| 103597 | Puzanov - Tkac | 0-1 | 15th of April 2018 09:01:29 | (chess) | rated |
| 103602 | Foster - Tkac | 1-0 | 19th of March 2018 14:55:22 | (chess) | unrated |
| 103607 | Tkac - Capung | 0-1 | 19th of March 2018 19:32:17 | (chess) | unrated |
| 103611 | Niglio - Tkac | 0-1 | 31st of March 2018 17:56:27 | (chess) | unrated |
| 103614 | Tkac - Goldmund | 0-1 | 19th of March 2018 14:55:32 | (chess) | unrated |
| 103616 | Sundararaghavan - Tkac | 1-0 | 31st of May 2018 00:31:30 | (chess) | unrated |
| 103618 | Tkac - Cronwright | 0-1 | 21st of July 2018 08:06:14 | (chess) | unrated |
| 103622 | Tkac - Kohut | 0-1 | 19th of March 2018 19:32:26 | (chess) | rated |
| 103627 | Pintor - Tkac | 1-0 | 19th of March 2018 14:55:40 | (chess) | rated |
| 103631 | Tkac - de la Foret | 0-1 | 19th of March 2018 14:55:48 | (chess) | rated |
| 103634 | Pinzon - Tkac | 0-1 | 25th of April 2018 21:57:53 | (chess) | rated |
| 103637 | Tkac - Kumar | 1-0 | 25th of April 2018 21:57:53 | (chess) | rated |
| 103638 | Sundararaghavan - Tkac | 1-0 | 11th of May 2018 11:20:54 | (chess) | rated |
| 103874 | Tkac - Cough | 1-0 | 2nd of May 2018 10:30:26 | (chess) | rated |
| 103879 | Benreguia - Tkac | 1-0 | 20th of July 2018 20:06:28 | (chess) | rated |
| 103883 | Tkac - Bromo | 0-1 | 5th of May 2018 16:03:28 | (chess) | rated |
| 103886 | Goldmund - Tkac | 1-0 | 22nd of May 2018 19:46:09 | (chess) | rated |
| 103889 | Tkac - Doughty | 1-0 | 10th of May 2018 22:59:11 | (chess) | rated |
| 103890 | Periard-Richard - Tkac | 0-1 | 1st of May 2018 10:16:39 | (chess) | rated |
| 104013 | Fric - Tkac | 1-0 | 9th of May 2018 08:11:03 | (chess) | rated |
| 104020 | Tkac - Cease | 0-1 | 10th of June 2018 14:09:44 | (chess) | rated |
| 104026 | Farnik - Tkac | 1-0 | 7th of May 2018 14:44:42 | (chess) | rated |
| 104031 | Tkac - Mertens | 0-1 | 20th of April 2018 10:44:23 | (chess) | rated |
| 104035 | Cesbron - Tkac | 1-0 | 2nd of June 2018 12:44:50 | (chess) | rated |
| 104038 | Tkac - Matisz | 0-1 | 11th of May 2018 00:07:50 | (chess) | rated |
| 104040 | Piantadosi - Tkac | 1-0 | 2nd of June 2018 12:44:50 | (chess) | rated |
| 104042 | Tkac - Rivenburg | 1-0 | 13th of May 2018 11:13:15 | (chess) | rated |
| 104043 | Cronwright - Tkac | 1-0 | 4th of May 2018 18:48:31 | (chess) | unrated |
| 104049 | Tkac - Andreozzi | 0-1 | 19th of July 2018 20:07:04 | (chess) | unrated |
| 104050 | Liwat - Tkac | 1-0 | 5th of May 2018 16:17:45 | (chess) | unrated |
| 104051 | Tkac - Andreoni | 0-1 | 8th of May 2018 18:49:39 | (chess) | unrated |
| 104052 | Schuett - Tkac | 1-0 | 25th of July 2018 20:31:23 | (chess) | unrated |
| 104053 | Tkac - Romig | 0-1 | 30th of April 2018 23:53:22 | (chess) | unrated |
| 104277 | Tkac - Bromo | 0-1 | 5th of May 2018 16:06:00 | (chess) | rated |
| 104278 | Costin - Tkac | 0-1 | 31st of May 2018 00:31:30 | (chess) | rated |
| 104279 | Tkac - Coggiola | 0-1 | 4th of June 2018 01:02:01 | (chess) | rated |
| 104280 | Leurette - Tkac | 1-0 | 3rd of June 2018 12:52:57 | (chess) | rated |
| 104281 | Tkac - Polgar | 1-0 | 29th of April 2018 22:03:01 | (chess) | rated |
| 104282 | Vreugdenhil - Tkac | 0-1 | 3rd of June 2018 00:45:49 | (chess) | rated |
| 104404 | Romig - Tkac | 1-0 | 4th of May 2018 19:11:42 | (chess) | unrated |
| 104410 | Tkac - Padula | 0-1 | 10th of July 2018 07:10:30 | (chess) | unrated |
| 104411 | Lott - Tkac | 0-1 | 4th of June 2018 01:02:01 | (chess) | unrated |
| 104412 | Tkac - Bromo | 0-1 | 5th of July 2018 17:59:39 | (chess) | unrated |
| 104413 | Niglio - Tkac | 1-0 | 8th of July 2018 19:05:22 | (chess) | unrated |
| 104414 | Tkac - Goldmund | 0-1 | 21st of July 2018 20:09:42 | (chess) | unrated |
| 104446 | Bromo - Tkac | 1-0 | 29th of July 2018 20:43:20 | (chess) | rated |
| 104452 | Tkac - Gonet | 0-1 | 21st of May 2018 11:29:44 | (chess) | rated |
| 104453 | Jerez - Tkac | 1-0 | 16th of July 2018 19:49:04 | (chess) | rated |
| 104454 | Tkac - Martinez | 1/2-1/2 | 6th of May 2018 01:21:24 | (chess) | rated |
| 104455 | Goldmund - Tkac | 1-0 | 21st of July 2018 20:09:42 | (chess) | rated |
| 104456 | Tkac - Capung | 1-0 | 30th of May 2018 00:32:56 | (chess) | rated |
| 104509 | Bromo - Tkac | 1-0 | 14th of May 2018 17:16:02 | (chess) | rated |
| 104515 | Tkac - Joubert | 0-1 | 7th of June 2018 01:20:58 | (chess) | rated |
| 104516 | Goldmund - Tkac | 1-0 | 3rd of June 2018 12:52:57 | (chess) | rated |
| 104517 | Tkac - Capung | 1-0 | 19th of May 2018 23:36:18 | (chess) | rated |
| 104518 | Coggiola - Tkac | 1-0 | 3rd of June 2018 12:52:57 | (chess) | rated |
| 104519 | Tkac - Grogory | 1-0 | 19th of May 2018 23:36:18 | (chess) | rated |
| 104661 | Tkac - Kohut | 0-1 | 5th of July 2018 17:59:39 | (chess) | rated |
| 104666 | Budnar - Tkac | 0-1 | 19th of April 2018 17:53:51 | (chess) | rated |
| 104671 | Tkac - Wood | 0-1 | 9th of July 2018 19:08:00 | (chess) | rated |
| 104672 | Capung - Tkac | 0-1 | 28th of May 2018 12:20:36 | (chess) | rated |
| 104673 | Tkac - de la Foret | 0-1 | 29th of July 2018 08:40:13 | (chess) | rated |
| 104674 | Coggiola - Tkac | 1-0 | 21st of May 2018 01:12:17 | (chess) | rated |
| 104900 | Tkac - Kohut | 0-1 | 19th of July 2018 08:06:45 | (chess_960) | unrated |
| 104905 | Capung - Tkac | 0-1 | 26th of May 2018 00:08:02 | (chess_960) | unrated |
| 104910 | Tkac - Romig | 0-1 | 4th of May 2018 19:12:27 | (chess_960) | unrated |
| 104911 | Sharma - Tkac | 1-0 | 9th of July 2018 19:08:00 | (chess_960) | unrated |
| 104912 | Tkac - Hadden | 1/2-1/2 | 6th of May 2018 12:35:24 | (chess_960) | unrated |
| 104913 | Klawitter - Tkac | 1-0 | 9th of July 2018 19:08:00 | (chess_960) | unrated |
| 105141 | Capung - Tkac | 0-1 | 2nd of June 2018 12:44:50 | (chess) | unrated |
| 105147 | Tkac - Klawitter | 0-1 | 17th of July 2018 19:54:17 | (chess) | unrated |
| 105148 | Romig - Tkac | 1-0 | 7th of May 2018 15:56:39 | (chess) | unrated |
| 105149 | Tkac - Sharma | 0-1 | 16th of July 2018 07:44:55 | (chess) | unrated |
| 105150 | Pipac - Tkac | 1-0 | 27th of May 2018 15:41:09 | (chess) | unrated |
| 105151 | Tkac - Biryukov | 1-0 | 10th of June 2018 02:05:43 | (chess) | unrated |
| 105384 | Tkac - Jabot | 0-1 | 18th of June 2018 15:12:14 | (chess) | rated |
| 105418 | Farnik - Tkac | 1-0 | 14th of May 2018 17:16:52 | (chess) | rated |
| 105451 | Tkac - Romig | 0-1 | 5th of May 2018 16:19:10 | (chess) | rated |
| 105483 | Flores - Tkac | 1-0 | 17th of June 2018 15:09:37 | (chess) | rated |
| 105514 | Tkac - Faust | 0-1 | 23rd of June 2018 03:52:00 | (chess) | rated |
| 105544 | Price - Tkac | 1-0 | 18th of June 2018 15:12:14 | (chess) | rated |
| 105573 | Tkac - Liwat | 0-1 | 19th of June 2018 03:14:42 | (chess) | rated |
| 105601 | Vasseur - Tkac | 0-1 | 4th of June 2018 01:02:01 | (chess) | rated |
| 105628 | Tkac - Churyaev | 0-1 | 19th of June 2018 03:14:42 | (chess) | rated |
| 105654 | Van Mechelen - Tkac | 1-0 | 16th of June 2018 15:11:25 | (chess) | rated |
| 105679 | Tkac - Ndione | 0-1 | 18th of June 2018 03:11:00 | (chess) | rated |
| 105703 | Foster - Tkac | 1-0 | 16th of May 2018 19:18:53 | (chess) | rated |
| 105726 | Tkac - Barbosa | 0-1 | 23rd of June 2018 03:52:00 | (chess) | rated |
| 105748 | Trigance - Tkac | 1-0 | 24th of June 2018 16:02:23 | (chess) | rated |
| 105769 | Tkac - Sharma | 0-1 | 14th of June 2018 02:43:28 | (chess) | rated |
| 105789 | Sundararaghavan - Tkac | 1-0 | 19th of June 2018 03:14:47 | (chess) | rated |
| 105808 | Tkac - Andreozzi | 0-1 | 19th of June 2018 15:20:59 | (chess) | rated |
| 105826 | Tokarev - Tkac | 1-0 | 21st of June 2018 03:28:39 | (chess) | rated |
| 105843 | Tkac - Pechova | 0-1 | 8th of July 2018 19:05:22 | (chess) | rated |
| 105859 | Pech - Tkac | 1-0 | 4th of July 2018 05:47:43 | (chess) | rated |
| 105874 | Tkac - Capung | 1-0 | 1st of June 2018 00:38:07 | (chess) | rated |
| 105888 | Gorsek - Tkac | 0-1 | 4th of June 2018 01:02:01 | (chess) | rated |
| 105901 | Tkac - Coggiola | 0-1 | 13th of June 2018 02:44:42 | (chess) | rated |
| 105913 | Vreugdenhil - Tkac | 0-1 | 4th of June 2018 01:02:01 | (chess) | rated |
| 105924 | Tkac - Konyukhov | 1-0 | 1st of June 2018 00:38:07 | (chess) | rated |
| 105934 | Csoma - Tkac | 1-0 | 20th of June 2018 15:22:35 | (chess) | rated |
| 105943 | Tkac - Klawitter | 0-1 | 11th of June 2018 14:18:31 | (chess) | rated |
| 105951 | Hadden - Tkac | 1-0 | 17th of June 2018 15:09:37 | (chess) | rated |
| 105958 | Tkac - Radding | 0-1 | 14th of June 2018 02:43:28 | (chess) | rated |
| 105964 | Goldmund - Tkac | 1-0 | 17th of June 2018 03:10:33 | (chess) | rated |
| 105969 | Tkac - Orden | 0-1 | 20th of June 2018 15:22:35 | (chess) | rated |
| 105973 | MacGregor - Tkac | 0-1 | 4th of June 2018 01:02:01 | (chess) | rated |
| 105977 | Tkac - Pipac | 0-1 | 27th of June 2018 16:11:21 | (chess) | rated |
| 105978 | Kehayov - Tkac | 1-0 | 14th of June 2018 14:43:18 | (chess) | rated |
| 105979 | Tkac - Malish | 1-0 | 3rd of June 2018 12:52:57 | (chess) | rated |
| 109446 | Tkac - Joubert | 0-1 | 2nd of October 2018 04:42:27 | (chess) | rated |
| 109451 | Goldmund - Tkac | 1-0 | 2nd of October 2018 04:42:27 | (chess) | rated |
| 109456 | Tkac - Pipac | 0-1 | 2nd of October 2018 04:42:27 | (chess) | rated |
| 109457 | Leurette - Tkac | 1-0 | 2nd of October 2018 04:42:27 | (chess) | rated |
| 109458 | Tkac - Martinez Camacho | 0-1 | 2nd of October 2018 04:42:27 | (chess) | rated |
| 109459 | Mach - Tkac | 1-0 | 2nd of October 2018 04:42:27 | (chess) | rated |