| Apr 6, 2026 | Nothnagel | ½–½ | Yildiz | Grenke Chess Festival 2026 Open | Caro-Kann Defense: Two Knights Attack | |
| Apr 6, 2026 | Kurt | ½–½ | Nothnagel | Grenke Chess Festival 2026 Open | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 5, 2026 | Nothnagel | 0–1 | Xiao | Grenke Chess Festival 2026 Open | Sicilian Defense: Moscow Variation | |
| Apr 5, 2026 | Bauer | 0–1 | Nothnagel | Grenke Chess Festival 2026 Open | Benoni Defense: King's Pawn Line, with Bg5 | |
| Apr 4, 2026 | Nothnagel | 1–0 | Golubovic | Grenke Chess Festival 2026 Open | Sicilian Defense: O'Kelly Variation, Venice System | |
| Apr 4, 2026 | Nguyen | 0–1 | Nothnagel | Grenke Chess Festival 2026 Open | Benoni Defense: King's Pawn Line, with Nge2 | |
| Apr 3, 2026 | Koehler | ½–½ | Nothnagel | Grenke Chess Festival 2026 Open | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 2, 2026 | Nothnagel | 1–0 | Shahmammadli | Grenke Chess Festival 2026 Open | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 5, 2025 | Hartge | 0–1 | Nothnagel | IM-Turnier 2025 2025 | King's Indian Defense: Kramer Variation | |
| Oct 4, 2025 | Nothnagel | 1–0 | Tschernatsch | IM-Turnier 2025 2025 | ? | |
| Oct 4, 2025 | Rodriguez | 1–0 | Nothnagel | IM-Turnier 2025 2025 | Indian Defense: Przepiorka Variation | |
| Oct 3, 2025 | Nothnagel | 1–0 | Ngo | IM-Turnier 2025 2025 | King's Indian Attack: Sicilian Variation | |
| Oct 2, 2025 | Stork | 1–0 | Nothnagel | IM-Turnier 2025 2025 | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Oct 1, 2025 | Nothnagel | 1–0 | Carlstedt | IM-Turnier 2025 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 1, 2025 | Eugene | 1–0 | Nothnagel | IM-Turnier 2025 2025 | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Sep 29, 2025 | Nothnagel | ½–½ | Garner | IM-Turnier 2025 2025 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Sep 29, 2025 | Nothnagel | ½–½ | Kopylov | IM-Turnier 2025 2025 | Petrov's Defense: Modern Attack, Center Variation | |
| Jun 15, 2025 | Ehmann | 0–1 | Nothnagel | Round 8: Ehmann, Thilo - Nothnagel, Marian Can | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jun 15, 2025 | Nothnagel | 1–0 | Khachatryan | Round 7: Nothnagel, Marian Can - Khachatryan, Taron | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Jun 14, 2025 | Nothnagel | 1–0 | Cofmann | Round 3: Nothnagel, Marian Can - Cofmann, Veaceslav | French Defense: King's Indian Attack | |
| Jun 14, 2025 | Lauer | 0–1 | Nothnagel | Round 2: Lauer, Marius - Nothnagel, Marian Can | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jun 9, 2025 | Nothnagel | 0–1 | Grafl | Round 9: Nothnagel, Marian Can - Grafl, Florian, Dr. | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jun 9, 2025 | Albert | 1–0 | Nothnagel | Round 6: Albert, Marco - Nothnagel, Marian Can | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Jun 9, 2025 | Nothnagel | ½–½ | Barzen | Round 5: Nothnagel, Marian Can - Barzen, Pascal | Sicilian Defense: French Variation | |
| Jun 9, 2025 | Ollenberger | 0–1 | Nothnagel | Round 4: Ollenberger, Roland - Nothnagel, Marian Can | Center Game: Berger Variation | |
| Jun 9, 2025 | Nothnagel | ½–½ | Gruenter | Round 1: Nothnagel, Marian Can - Gruenter, Martin | Sicilian Defense: Moscow Variation, Main Line | |
| May 24, 2025 | Nothnagel | 0–1 | Deuer | Round 29: Nothnagel, Marian Can - Deuer, Marius | Modern Defense | |
| May 24, 2025 | Donchenko | ½–½ | Nothnagel | Round 28: Donchenko, Alexander - Nothnagel, Marian Can | King's Indian Defense: Orthodox Variation | |
| May 24, 2025 | Nothnagel | 0–1 | Moeller | Round 27: Nothnagel, Marian Can - Moeller, Maurin | King's Indian Attack: Sicilian Variation | |
| May 24, 2025 | Nothnagel | 0–1 | Eichenauer | Round 25: Nothnagel, Marian Can - Eichenauer, Pascal | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 24, 2025 | Yelisieiev | 0–1 | Nothnagel | Round 26: Yelisieiev, Yevhenii - Nothnagel, Marian Can | Indian Defense: Przepiorka Variation | |
| May 24, 2025 | Kopylov | 0–1 | Nothnagel | Round 24: Kopylov, Michael - Nothnagel, Marian Can | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line | |
| May 24, 2025 | Nothnagel | 0–1 | Knuedel | Round 23: Nothnagel, Marian Can - Knuedel, Torben | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 24, 2025 | Svane | 1–0 | Nothnagel | Round 22: Svane, Rasmus - Nothnagel, Marian Can | King's Indian Attack: Symmetrical Defense | |
| May 24, 2025 | Nothnagel | 1–0 | Schneider | Round 21: Nothnagel, Marian Can - Schneider, Bernd | Modern Defense: Standard Line | |
| May 24, 2025 | Langheinrich | 0–1 | Nothnagel | Round 20: Langheinrich, Ferenc - Nothnagel, Marian Can | Ruy Lopez: Morphy Defense, Wormald Attack | |
| May 24, 2025 | Nothnagel | 1–0 | Rosner | Round 19: Nothnagel, Marian Can - Rosner, Jonas | Sicilian Defense: French Variation | |
| May 24, 2025 | Chassard | 0–1 | Nothnagel | Round 18: Chassard, Cedric - Nothnagel, Marian Can | Scotch Game: Schmidt Variation | |
| May 24, 2025 | Nothnagel | 1–0 | Schneider | Round 17: Nothnagel, Marian Can - Schneider, Ilja | Italian Game: Classical Variation, La Bourdonnais Variation | |
| May 24, 2025 | Barzen | 1–0 | Nothnagel | Round 16: Barzen, Pascal - Nothnagel, Marian Can | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| May 24, 2025 | Nothnagel | ½–½ | Richter | Round 15: Nothnagel, Marian Can - Richter, Christian | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| May 24, 2025 | Svane | 1–0 | Nothnagel | Round 14: Svane, Frederik - Nothnagel, Marian Can | Italian Game: Giuoco Pianissimo, Normal | |
| May 24, 2025 | Nothnagel | 1–0 | Frischmann | Round 13: Nothnagel, Marian Can - Frischmann, Rick | Scandinavian Defense: Gubinsky-Melts Defense | |
| May 24, 2025 | Reichmann | 0–1 | Nothnagel | Round 12: Reichmann, Hendrik - Nothnagel, Marian Can | Indian Defense | |
| May 24, 2025 | Nothnagel | 0–1 | Atoyan | Round 11: Nothnagel, Marian Can - Atoyan, Alberto | Sicilian Defense: Moscow Variation | |
| May 24, 2025 | Berchtenbreiter | 1–0 | Nothnagel | Round 9: Berchtenbreiter, Maximilian - Nothnagel, Marian Can | Nimzo-Larsen Attack: Indian Variation | |
| May 24, 2025 | Nothnagel | 1–0 | Stein | Round 8: Nothnagel, Marian Can - Stein, Robert | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 24, 2025 | Gloeckler | 1–0 | Nothnagel | Round 7: Gloeckler, Christian - Nothnagel, Marian Can | Italian Game: Two Knights Defense, Blackburne Variation | |
| May 24, 2025 | Nothnagel | 1–0 | Zuferi | Round 6: Nothnagel, Marian Can - Zuferi, Enis | Sicilian Defense: French Variation | |
| May 24, 2025 | Stricker | 0–1 | Nothnagel | Round 5: Stricker, Florian - Nothnagel, Marian Can | Four Knights Game | |
| May 24, 2025 | Nothnagel | 0–1 | Arndt | Round 4: Nothnagel, Marian Can - Arndt, Magnus | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 24, 2025 | Zwahr | 1–0 | Nothnagel | Round 3: Zwahr, Paul - Nothnagel, Marian Can | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| May 24, 2025 | Nothnagel | 1–0 | Joeres | Round 2: Nothnagel, Marian Can - Joeres, Stefan | Sicilian Defense: French Variation | |
| May 24, 2025 | Bluebaum | 1–0 | Nothnagel | Round 1: Bluebaum, Matthias - Nothnagel, Marian Can | King's Indian Defense: Orthodox Variation, Positional Defense | |
| May 23, 2025 | Holinka | 1–0 | Nothnagel | Round 10: Holinka, Henning - Nothnagel, Marian Can | Italian Game: Giuoco Pianissimo, Normal | |
| Apr 21, 2025 | Nothnagel | 1–0 | Hartge | Round 8: Nothnagel, Marian Can - Hartge, Gedeon | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Apr 21, 2025 | Bartel | 1–0 | Nothnagel | Grenke Chess Open A | London System | |
| Apr 20, 2025 | Nothnagel | 0–1 | Subelj | Round 6: Nothnagel, Marian Can - Subelj, Jan | French Defense: Advance Variation, Main Line | |
| Apr 20, 2025 | Dolzhykova | 1–0 | Nothnagel | Round 7: Dolzhykova, Kateryna - Nothnagel, Marian Can | Catalan Opening | |
| Apr 19, 2025 | Nothnagel | ½–½ | Donchenko | Round 4: Nothnagel, Marian Can - Donchenko, Alexander | Sicilian Defense: French Variation | |
| Apr 19, 2025 | Chen | 0–1 | Nothnagel | Round 5: Chen, Qingzhi Alexander - Nothnagel, Marian Can | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Apr 18, 2025 | Nothnagel | 1–0 | Philipp | Round 2: Nothnagel, Marian Can - Philipp, Mathias | Sicilian Defense: French Variation | |
| Apr 18, 2025 | Paduano | 0–1 | Nothnagel | Round 3: Paduano, Claudio - Nothnagel, Marian Can | King's Indian Defense: Semi-Averbakh System | |
| Apr 17, 2025 | Ciornei | 0–1 | Nothnagel | Round 1: Ciornei, Dragos, Dr. - Nothnagel, Marian Can | Scotch Game: Mieses Variation | |
| Nov 24, 2024 | Nothnagel | 0–1 | Grigoryan | Heusenstamm Sparkassen Open 2024 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Nov 24, 2024 | Eilers | 0–1 | Nothnagel | Heusenstamm Sparkassen Open 2024 | East Indian Defense | |
| Nov 23, 2024 | Nothnagel | 1–0 | Browning | Heusenstamm Sparkassen Open 2024 | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Nov 23, 2024 | Koellner | ½–½ | Nothnagel | Heusenstamm Sparkassen Open 2024 | East Indian Defense | |
| Nov 22, 2024 | Nothnagel | ½–½ | Boeddeker | Heusenstamm Sparkassen Open 2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Nov 22, 2024 | Hoppstaedter | 0–1 | Nothnagel | Heusenstamm Sparkassen Open 2024 | Trompowsky Attack | |
| Nov 21, 2024 | Sreeramulu | 0–1 | Nothnagel | Heusenstamm Sparkassen Open 2024 | King's Indian Defense: Four Pawns Attack, Dynamic Attack | |
| Aug 9, 2024 | Sramek | 0–1 | Nothnagel | Letni Praha 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Aug 8, 2024 | Nothnagel | 0–1 | Anwesh | Letni Praha 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Aug 7, 2024 | Pulpan | ½–½ | Nothnagel | Letni Praha 2024 | Italian Game: Giuoco Pianissimo, Normal | |
| Aug 6, 2024 | Nothnagel | 1–0 | Konopka | Letni Praha 2024 | Petrov's Defense: Modern Attack, Murrey Variation | |
| Aug 5, 2024 | Golenia | 0–1 | Nothnagel | Letni Praha 2024 | King's Indian Defense: Makogonov Variation | |
| Aug 4, 2024 | Nothnagel | ½–½ | Walek | Letni Praha 2024 | King's Indian Attack: Sicilian Variation | |
| Aug 4, 2024 | Toure | 0–1 | Nothnagel | Letni Praha 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Aug 3, 2024 | Nothnagel | 1–0 | Rousek | Letni Praha 2024 | Sicilian Defense: French Variation | |
| Aug 2, 2024 | Hujo | 0–1 | Nothnagel | Letni Praha 2024 | Indian Defense | |
| Apr 1, 2024 | Erdogmus | 1–0 | Nothnagel | Grenke Chess Open 2024 | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Mar 31, 2024 | Nothnagel | 1–0 | Terekhov | new tournament description | Sicilian Defense: French Variation | |
| Mar 31, 2024 | Noe | ½–½ | Nothnagel | Grenke Chess Open 2024 | King's Indian Defense: Sämisch Variation, Sämisch Gambit | |
| Mar 30, 2024 | Nothnagel | 0–1 | Muradli | Grenke Chess Open 2024 | Sicilian Defense: Moscow Variation | |
| Mar 30, 2024 | Kurmangaliyeva | * | Nothnagel | new tournament description | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Oct 13, 2024 | Nothnagel | 0–1 | Kopylov | Round 6: Nothnagel, Marian Can - Kopylov, Daniel | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 13, 2024 | Nothnagel | 1–0 | Schneider | Round 9: Nothnagel, Marian Can - Schneider, Ilja | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 13, 2024 | Heider | ½–½ | Nothnagel | Round 7: Heider, Martin - Nothnagel, Marian Can | Zukertort Opening: Nimzo-Larsen Variation | |
| Oct 13, 2024 | Yelisieiev | 0–1 | Nothnagel | Round 8: Yelisieiev, Yevhenii - Nothnagel, Marian Can | Zukertort Opening: Nimzo-Larsen Variation | |
| Oct 12, 2024 | Nothnagel | 1–0 | Peng | Round 3: Nothnagel, Marian Can - Peng, Xiang-Tobias | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 12, 2024 | Nothnagel | 1–0 | Knuedel | Round 4: Nothnagel, Marian Can - Knuedel, Torben | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 12, 2024 | Braeuning | ½–½ | Nothnagel | Round 2: Braeuning, Rudolf Wilhelm - Nothnagel, Marian Can | Four Knights Game: Scotch Variation Accepted | |
| Oct 12, 2024 | Richter | 0–1 | Nothnagel | Round 5: Richter, Michael - Nothnagel, Marian Can | King's Indian Defense: Semi-Averbakh System | |
| — | Nothnagel | 1–0 | Ellenbroek | HZ University of Applied Sciences Chess Tournament | Petrov's Defense: Modern Attack, Murrey Variation | |
| — | Nothnagel | 1–0 | Ronge | HZ University of Applied Sciences Chess Tournament | Petrov's Defense: Modern Attack, Center Variation | |
| — | Nothnagel | 0–1 | De Winter | HZ University of Applied Sciences Chess Tournament | Sicilian Defense: Najdorf Variation, Freak Attack | |
| — | Lee | 0–1 | Nothnagel | HZ University of Applied Sciences Chess Tournament | King's Indian Defense: Semi-Averbakh System | |
| — | Van der Werf | 1–0 | Nothnagel | HZ University of Applied Sciences Chess Tournament | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| — | Hng | 0–1 | Nothnagel | HZ University of Applied Sciences Chess Tournament | Ruy Lopez: Exchange Variation, Normal Variation | |
| — | Ikonnikov | ½–½ | Nothnagel | HZ University of Applied Sciences Chess Tournament | King's Indian Defense: Petrosian Variation, Stein Defense | |