| Dec 11, 2023 | Håkan Svensson | 0–1 | Joakim Nilsson | Round 4: Håkan Svensson - Joakim Nilsson | Benko Gambit Accepted: Modern Variation | |
| Jul 12, 2023 | Peter K Wells | ½–½ | Joakim Nilsson | Round 9: Peter K Wells - Joakim Nilsson | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jul 11, 2023 | Joakim Nilsson | 1–0 | Thomas Brown | Round 8: Joakim Nilsson - Thomas Brown | Zukertort Opening: Kingside Fianchetto | |
| Jul 11, 2023 | Oleg Korneev | 1–0 | Joakim Nilsson | Round 7: Oleg Korneev - Joakim Nilsson | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 10, 2023 | Joakim Nilsson | 1–0 | Jonathan L B Blackburn | Round 6: Joakim Nilsson - Jonathan L B Blackburn | Torre Attack: Fianchetto Defense | |
| Jul 9, 2023 | Joakim Nilsson | 1–0 | Joe Fathallah | Round 4: Joakim Nilsson - Joe Fathallah | Dutch Defense: Hopton Attack | |
| Jul 9, 2023 | Oscar Pollack | 0–1 | Joakim Nilsson | Round 5: Oscar Pollack - Joakim Nilsson | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 8, 2023 | Ifan Rathbone-Jones | ½–½ | Joakim Nilsson | Round 3: Ifan Rathbone-Jones - Joakim Nilsson | Catalan Opening: Open Defense | |
| Jul 7, 2023 | Joakim Nilsson | 1–0 | Matthew R Wilson | Round 2: Joakim Nilsson - Matthew R Wilson | Queen's Pawn Game: Torre Attack | |
| Jul 7, 2023 | Guy Wagner | ½–½ | Joakim Nilsson | Round 1: Guy Wagner - Joakim Nilsson | Tarrasch Defense: Symmetrical Variation | |
| Aug 15, 2021 | Joakim Nilsson | 0–1 | Dagur Ragnarsson | Round 9: Joakim Nilsson - Dagur Ragnarsson | Dutch Defense: Classical Variation | |
| Aug 14, 2021 | Kim Nygren | 1–0 | Joakim Nilsson | Round 8: Kim Nygren - Joakim Nilsson | Sicilian Defense: Wing Gambit Deferred | |
| Aug 13, 2021 | Joakim Nilsson | ½–½ | Leo Crevatin | Round 7: Joakim Nilsson - Leo Crevatin | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Aug 13, 2021 | Konstantin Borsuk | ½–½ | Joakim Nilsson | Round 6: Konstantin Borsuk - Joakim Nilsson | English Opening: Agincourt Defense | |
| Aug 12, 2021 | Joakim Nilsson | * | Alexander Hart | Round 5: Joakim Nilsson - Alexander Hart | Blackmar-Diemer Gambit: Reversed Albin Countergambit | |
| Aug 11, 2021 | Torsten Limbach | 0–1 | Joakim Nilsson | Round 4: Torsten Limbach - Joakim Nilsson | Catalan Opening: Open Defense, Classical Line | |
| Aug 10, 2021 | Joakim Nilsson | 1–0 | William Olsson | Round 3: Joakim Nilsson - William Olsson | Sicilian Defense: Moscow Variation | |
| Aug 10, 2021 | Thomas Ernst | ½–½ | Joakim Nilsson | Round 2: Thomas Ernst - Joakim Nilsson | Sicilian Defense: Taimanov Variation, Modern Line | |
| Aug 10, 2021 | Joakim Nilsson | 0–1 | Vignir Vatnar Stefansson | Round 1: Joakim Nilsson - Vignir Vatnar Stefansson | Rapport-Jobava System | |
| Oct 28, 2020 | Ludvig Carlsson | ½–½ | Joakim Nilsson | Uppsala Young Champions - Round 9: Ludvig Carlsson - Joakim Nilsson | Bogo-Indian Defense: Vitolins Variation | |
| Oct 28, 2020 | Annmarie Muetsch | 1–0 | Joakim Nilsson | Uppsala Young Champions - Round 8: Annmarie Muetsch - Joakim Nilsson | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Oct 27, 2020 | Joakim Nilsson | 1–0 | Arvin Rasti | Uppsala Young Champions - Round 7: Joakim Nilsson - Arvin Rasti | Modern Defense: Standard Line | |
