| — | Hacker | ½–½ | Vyval | new tournament description | French Defense: Rubinstein Variation | |
| — | Schulze | 0–1 | Hacker | Grenke Open | Indian Defense | |
| Apr 5, 2026 | Dayal | 1–0 | Hacker | Grenke Chess Festival 2026 Open | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Apr 5, 2026 | Hacker | 1–0 | Montorsi | Grenke Chess Festival 2026 Open | Nimzo-Indian Defense: Classical Variation | |
| Apr 4, 2026 | Kupriyanov | ½–½ | Hacker | Grenke Chess Festival 2026 Open | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Apr 4, 2026 | Hacker | ½–½ | Harish | Grenke Chess Festival 2026 Open | Sicilian Defense: French Variation | |
| Feb 6, 2026 | Pribelszky | 1–0 | Hacker | SixDays February 2026 IM B | ? | |
| Feb 5, 2026 | Hacker | 1–0 | Horvath | SixDays February 2026 IM B | French Defense: Advance Variation, Euwe Variation | |
| Feb 4, 2026 | Sanjay Narayanan P S | 0–1 | Hacker | SixDays February 2026 IM B | Sicilian Defense: Kan Variation | |
| Feb 3, 2026 | Hacker | ½–½ | Esshan Wadhawan | SixDays February 2026 IM B | Queen's Pawn Game: Symmetrical Variation | |
| Feb 3, 2026 | Pandey Srishti | ½–½ | Hacker | SixDays February 2026 IM B | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Feb 2, 2026 | Hacker | 1–0 | Ayaan Garg | SixDays February 2026 IM B | Queen's Gambit Declined: Harrwitz Attack, Main Line | |
| Feb 2, 2026 | Gunawardhana | 1–0 | Hacker | SixDays February 2026 IM B | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| Feb 1, 2026 | Hacker | 1–0 | Kienboeck | SixDays February 2026 IM B | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jan 31, 2026 | Hacker | 1–0 | Semprun Martinez | SixDays February 2026 IM B | Semi-Slav Defense: Normal Variation | |
| Jan 23, 2026 | Hacker | 1–0 | Coles | SixDays January 2026 IM B | French Defense: Advance Variation, Paulsen Attack | |
| Jan 23, 2026 | Hacker | 0–1 | Shahil Dey | SixDays January 2026 IM B | French Defense: Advance Variation, Wade Variation | |
| Jan 23, 2026 | Hacker | ½–½ | Jakab | SixDays January 2026 IM B | French Defense: Advance Variation, Paulsen Attack | |
| Jan 23, 2026 | Hacker | ½–½ | Sanjay Narayanan P S | SixDays January 2026 IM B | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line | |
| Jan 23, 2026 | Varga | ½–½ | Hacker | SixDays January 2026 IM B | Caro-Kann Defense: Endgame Offer | |
| Jan 23, 2026 | Esshan Wadhawan | 0–1 | Hacker | SixDays January 2026 IM B | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Jan 23, 2026 | Pandey Srishti | 0–1 | Hacker | SixDays January 2026 IM B | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 23, 2026 | Fule | ½–½ | Hacker | SixDays January 2026 IM B | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 23, 2026 | Alonso Gimenez | ½–½ | Hacker | SixDays January 2026 IM B | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Nov 23, 2025 | Hoette | ½–½ | Hacker | Heusenstamm Sparkassen Open 2025 | King's Indian Attack: Wahls Defense | |
| Nov 22, 2025 | Hacker | ½–½ | Commercon | Heusenstamm Sparkassen Open 2025 | Semi-Slav Defense: Normal Variation | |
| Nov 21, 2025 | Hacker | 0–1 | Hoppstaedter | Heusenstamm Sparkassen Open 2025 | Semi-Slav Defense: Normal Variation | |
| Nov 21, 2025 | Rose | 0–1 | Hacker | Heusenstamm Sparkassen Open 2025 | Nimzo-Indian Defense: Kmoch Variation | |
| Nov 20, 2025 | Hacker | 1–0 | von Auer | Heusenstamm Sparkassen Open 2025 | Grünfeld Defense: Zaitsev Gambit | |
| Nov 12, 2025 | Kheerthi Ganta | ½–½ | Hacker | SixDays November 2025 IM-A | Nimzo-Indian Defense: Normal Variation | |
| Nov 12, 2025 | Hacker | ½–½ | Rybka | SixDays November 2025 IM-A | Queen's Gambit Declined: Harrwitz Attack, Main Line | |
| Nov 11, 2025 | Horvath | 0–1 | Hacker | SixDays November 2025 IM-A | Sicilian Defense: Alapin Variation | |
| Nov 10, 2025 | Hacker | ½–½ | Sava | SixDays November 2025 IM-A | Nimzo-Indian Defense: Classical Variation | |
| Nov 10, 2025 | Anishka Vikram | 0–1 | Hacker | SixDays November 2025 IM-A | Nimzo-Indian Defense: St. Petersburg Variation | |
| Nov 9, 2025 | Hacker | 1–0 | Lahav | SixDays November 2025 IM-A | French Defense: Advance Variation, Paulsen Attack | |
| Nov 9, 2025 | Pribelszky | * | Hacker | SixDays November 2025 IM-A | ? | |
| Nov 8, 2025 | Hacker | 1–0 | Horvath | SixDays November 2025 IM-A | French Defense: Advance Variation, Euwe Variation | |
| Nov 6, 2025 | Hacker | 1–0 | Csernyik | SixDays November 2025 IM-A | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Oct 19, 2025 | Hacker | 1–0 | Liu | Round 9: Hacker, Jonas - Liu, Casper | French Defense: Tarrasch Variation | |
| Oct 18, 2025 | Rasmussen | 1–0 | Hacker | Round 8: Rasmussen, Allan Stig - Hacker, Jonas | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Oct 17, 2025 | Chatalbashev | 1–0 | Hacker | Round 6: Chatalbashev, Boris - Hacker, Jonas | Nimzo-Indian Defense: Three Knights Variation | |
| Oct 16, 2025 | Hacker | 0–1 | Thavandiran | Round 5: Hacker, Jonas - Thavandiran, Shiyam | Nimzo-Indian Defense: Sämisch Variation | |
| Oct 15, 2025 | Pajeken | 1–0 | Hacker | Round 4: Pajeken, Jakob Leon - Hacker, Jonas | King's Indian Attack | |
| Oct 14, 2025 | Gloeckler | 0–1 | Hacker | Round 3: Gloeckler, Christian - Hacker, Jonas | Four Knights Game: Gunsberg Variation | |
| Oct 14, 2025 | Hacker | 1–0 | Jalving | Round 2: Hacker, Jonas - Jalving, August | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Oct 13, 2025 | Hacker | ½–½ | Hector | Round 7: Hacker, Jonas - Hector, Jonny | Slav Defense: Exchange Variation | |
| Oct 13, 2025 | Hagner | 1–0 | Hacker | Round 1: Hagner, Bennet - Hacker, Jonas | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Sep 23, 2025 | Tashkinova | 0–1 | Hacker | SixDays Three Years IM-C | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 22, 2025 | Hacker | 1–0 | Kovalev | SixDays Three Years IM-C | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Sep 22, 2025 | Perkampus | ½–½ | Hacker | SixDays Three Years IM-C | Queen's Gambit Accepted | |
| Sep 21, 2025 | Hacker | ½–½ | Adury | SixDays Three Years IM-C | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Sep 20, 2025 | Badacsonyi | 1–0 | Hacker | SixDays Three Years IM-C | Catalan Opening: Open Defense | |
| Sep 20, 2025 | Hacker | 1–0 | Anishka Vikram | SixDays Three Years IM-C | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| Sep 19, 2025 | Ratsma | 0–1 | Hacker | SixDays Three Years IM-C | Sicilian Defense: Pin Variation, Koch Variation | |
| Sep 18, 2025 | Hacker | ½–½ | Felmery | SixDays Three Years IM-C | Sicilian Defense: Smith-Morra Gambit | |
| Sep 18, 2025 | Hacker | ½–½ | Adarsh Tripathi | SixDays Three Years IM-C | Queen's Gambit Declined | |
| Jun 1, 2025 | Shimanov | 1–0 | Hacker | Round 8: Shimanov, Aleksandr - Hacker, Jonas | Sicilian Defense: Smith-Morra Gambit | |
| Jun 1, 2025 | Nemeth | * | Hacker | Round 6: Nemeth, Miklos - Hacker, Jonas | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| May 30, 2025 | Hacker | 0–1 | Vitiugov | Round 3: Hacker, Jonas - Vitiugov, Nikita | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| May 26, 2025 | Hacker | 0–1 | Santos Latasa | Round 7: Hacker, Jonas - Santos Latasa, Jaime | Queen's Gambit Declined: Ragozin Defense | |
| Apr 21, 2025 | Hacker | ½–½ | Erdogmus | Freestyle Chess Open A | ? | |
| Apr 21, 2025 | Grandelius | ½–½ | Hacker | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Hacker | ½–½ | Huschenbeth | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Hacker | 1–0 | Bacrot | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Hacker | ½–½ | So | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Maisch | 0–1 | Hacker | Freestyle Chess Open A | ? | |
| Apr 18, 2025 | Hacker | 0–1 | Svane | Round 2: Hacker, Jonas - Svane, Frederik | ? | |
| Apr 18, 2025 | Tischler | 0–1 | Hacker | Round 3: Tischler, Michel - Hacker, Jonas | ? | |
| Apr 4, 2025 | Sebenik | 1–0 | Hacker | Round 8: Sebenik, Matej - Hacker, Jonas | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Apr 3, 2025 | Froewis | 1–0 | Hacker | Round 7: Froewis, Georg - Hacker, Jonas | King's Indian Attack | |
| Apr 2, 2025 | Hacker | ½–½ | Shimanov | Round 6: Hacker, Jonas - Shimanov, Aleksandr | Queen's Gambit Declined: Barmen Variation | |
| Oct 13, 2024 | Hacker | 1–0 | Gschiel | Round 5: Hacker, Jonas - Gschiel, Alexander | Caro-Kann Defense: Advance Variation | |
| Aug 11, 2024 | Hacker | 1–0 | Jacobsen | ccc24gm | Semi-Slav Defense: Accelerated Meran Variation | |
| Aug 11, 2024 | Vinter-Schou | 0–1 | Hacker | ccc24gm | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Aug 10, 2024 | Hacker | 0–1 | Nielsen | ccc24gm | Benko Gambit Accepted: Fully Accepted Variation | |
| Aug 10, 2024 | Jogstad | 0–1 | Hacker | ccc24gm | Indian Defense: Knights Variation | |
| Aug 9, 2024 | Hacker | 0–1 | Kunin | ccc24gm | Queen's Indian Defense: Fianchetto Variation | |
| Aug 9, 2024 | Kistrup | 1–0 | Hacker | ccc24gm | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Aug 8, 2024 | Hacker | ½–½ | Kjartansson | ccc24gm | Semi-Slav Defense: Normal Variation | |
| Aug 8, 2024 | Haubro | 0–1 | Hacker | ccc24gm | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Aug 7, 2024 | Hector | ½–½ | Hacker | ccc24gm | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 16, 2024 | Herbrig | ½–½ | Hacker | Round 9: Herbrig, Alexander - Hacker, Jonas | Catalan Opening: Open Defense | |
| Jul 16, 2024 | Hacker | 1–0 | Zimmermann | Round 8: Hacker, Jonas - Zimmermann, Rene, Dr. | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Jul 16, 2024 | Helmer | ½–½ | Hacker | Round 7: Helmer, Jan - Hacker, Jonas | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Jul 16, 2024 | Hacker | 1–0 | Kracht | Round 6: Hacker, Jonas - Kracht, Raphael | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Jul 16, 2024 | Zeller | ½–½ | Hacker | Round 5: Zeller, Frank - Hacker, Jonas | Nimzo-Indian Defense: Normal Variation | |
| Jul 16, 2024 | Hacker | 1–0 | Klaric | Round 4: Hacker, Jonas - Klaric, Zoran | King's Indian Defense: Orthodox Variation | |
| Jul 16, 2024 | Puschendorf | * | Hacker | Round 3: Puschendorf, Steffen - Hacker, Jonas | Catalan Opening: Open Defense | |
| Jul 16, 2024 | Hacker | 1–0 | Ehrig | Round 2: Hacker, Jonas - Ehrig, Leon Chris | Queen's Gambit Declined: Harrwitz Attack | |
| Jul 16, 2024 | Roessler | 0–1 | Hacker | Round 1: Roessler, Frank-Peter - Hacker, Jonas | Bird Opening | |
| Mar 31, 2024 | Hacker | * | Akhras | new tournament description | ? | |
| Mar 30, 2024 | Titze | * | Hacker | new tournament description | Sicilian Defense: French Variation | |
| Feb 1, 2024 | Hacker | ½–½ | Urhegyi | SixDays January 2024 IMA | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 31, 2024 | Szalay-Ocsak | ½–½ | Hacker | SixDays January 2024 IMA | Sicilian Defense: Scheveningen Variation, Classical Main Line | |
| Jan 31, 2024 | Kuru | 0–1 | Hacker | SixDays January 2024 IMA | Queen's Pawn Game: Colle System | |
| Jan 30, 2024 | Hacker | ½–½ | Lim | SixDays January 2024 IMA | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 29, 2024 | Hacker | 1–0 | Vetokhina | SixDays January 2024 IMA | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 29, 2024 | Polyik | ½–½ | Hacker | SixDays January 2024 IMA | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Jan 28, 2024 | Hacker | 1–0 | Orso | SixDays January 2024 IMA | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 28, 2024 | Balla | 1–0 | Hacker | SixDays January 2024 IMA | Nimzo-Larsen Attack: Classical Variation | |