| Dec 8, 2025 | Juan Mas | 1–0 | Kowalski Rubiales | La Zubia 2025 | King's Indian Attack: Symmetrical Defense | |
| Dec 7, 2025 | Razola Garcia | 1–0 | Kowalski Rubiales | La Zubia 2025 | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Dec 6, 2025 | Kowalski Rubiales | ½–½ | Cansino Fashho | La Zubia 2025 | Modern Defense | |
| Dec 6, 2025 | Achilles | 0–1 | Kowalski Rubiales | La Zubia 2025 | Caro-Kann Defense: Exchange Variation | |
| Dec 5, 2025 | Kowalski Rubiales | ½–½ | Kowalski Rubiales | La Zubia 2025 | Zukertort Opening | |
| Jul 20, 2025 | Jaime Galeano | 1–0 | Kowalski Rubiales | CE Sub16. 2025 | Indian Defense: Anti-Nimzo-Indian | |
| Jul 13, 2025 | Abad Miranda | 1–0 | Kowalski Rubiales | CE Sub12.2025 | King's Indian Defense: Makogonov Variation | |
| Jul 12, 2025 | Kowalski Rubiales | 0–1 | Munoz Xu | CE Sub12.2025 | Sicilian Defense: Closed | |
| Jul 12, 2025 | Calvo Perez | 0–1 | Kowalski Rubiales | CE Sub12.2025 | Caro-Kann Defense: Main Line | |
| Jul 11, 2025 | Kowalski Rubiales | 1–0 | Sergooris | CE Sub12.2025 | Philidor Defense: Bird Gambit | |
| Jul 10, 2025 | Merino Olaverri | 1–0 | Kowalski Rubiales | CE Sub12.2025 | Pirc Defense: Byrne Variation | |
| Jul 10, 2025 | Kowalski Rubiales | 1–0 | Ruiz Calvo | CE Sub12.2025 | Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation | |
| Jul 9, 2025 | Giraldez Requena | 1–0 | Kowalski Rubiales | CE Sub12.2025 | Pseudo Queen's Indian Defense | |
| Jul 8, 2025 | Kowalski Rubiales | 1–0 | Ciganda Palacios | CE Sub12.2025 | French Defense: Tarrasch Variation, Closed Variation | |
| Apr 27, 2025 | Kowalski Rubiales | 0–1 | Gasparian | Menores Andalucia 2025 | Italian Game: Evans Gambit, Anderssen Variation | |
| Apr 27, 2025 | Gutierrez Carrasco | 0–1 | Kowalski Rubiales | Menores Andalucia 2025 | Caro-Kann Defense: Two Knights Attack | |
| Apr 26, 2025 | Kowalski Rubiales | 1–0 | Pabon Hermann | Menores Andalucia 2025 | Sicilian Defense: Hyperaccelerated Dragon | |
| Apr 26, 2025 | Kowalski Rubiales | ½–½ | Belmonte Blasco | Menores Andalucia 2025 | French Defense: St. George Defense | |
| Apr 26, 2025 | Galiano Puertas | ½–½ | Kowalski Rubiales | Menores Andalucia 2025 | Caro-Kann Defense: Exchange Variation | |
| Apr 25, 2025 | Kowalski Rubiales | 1–0 | Martinez Medina | Menores Andalucia 2025 | Italian Game: Scotch Gambit, Janowski Defense | |
| Apr 25, 2025 | Mesa Sierra | 0–1 | Kowalski Rubiales | Menores Andalucia 2025 | Caro-Kann Defense: Main Line | |
| Apr 25, 2025 | Alonso Perez | 0–1 | Kowalski Rubiales | Menores Andalucia 2025 | Indian Defense | |
| Jul 25, 2024 | Syms | ½–½ | Kowalski Rubiales | Round 5: Syms, Thomas - Kowalski Rubiales, Leo | Caro-Kann Defense: Advance Variation | |
| Jul 24, 2024 | Kowalski Rubiales | 1–0 | Choung | Round 4: Kowalski Rubiales, Leo - Choung, James | Scandinavian Defense: Main Line | |
| Jul 24, 2024 | Kowalski Rubiales | 0–1 | Hu | Round 3: Kowalski Rubiales, Leo - Hu, Junyan | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jul 23, 2024 | Dairi | 1–0 | Kowalski Rubiales | Round 2: Dairi, Ramsey - Kowalski Rubiales, Leo | Caro-Kann Defense: Two Knights Attack | |
| Jul 23, 2024 | Kowalski Rubiales | 1–0 | Yip | Round 1: Kowalski Rubiales, Leo - Yip, Oscar | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line | |
| Jul 20, 2024 | Marco Garcia | * | Kowalski Rubiales | CE SUB 14.2024 | ? | |
| Jul 15, 2024 | Kowalski Rubiales | * | Pallares Jover | CE SUB 14.2024 | ? | |
| Jul 14, 2024 | Kowalski Rubiales | 0–1 | Mansor Habash | CE SUB 12 RAPIDO 2024 | Sicilian Defense: Hyperaccelerated Dragon | |
| Jul 14, 2024 | Luengas Velasco | * | Kowalski Rubiales | CE SUB 12 RAPIDO 2024 | ? | |
| Jul 13, 2024 | Merino Ferrer | 0–1 | Kowalski Rubiales | CE SUB 12.2024 | Caro-Kann Defense: Two Knights Attack | |
| Jul 13, 2024 | Alvarez Lee | 1–0 | Kowalski Rubiales | CE SUB 12 RAPIDO 2024 | Trompowsky Attack: Classical Defense, Big Center Variation | |
| Jul 12, 2024 | Kowalski Rubiales | 0–1 | Ruiz Lao | CE SUB 12.2024 | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Jul 12, 2024 | Alfaro Aldunate | 0–1 | Kowalski Rubiales | CE SUB 12.2024 | Caro-Kann Defense: Karpov Variation | |
| Jul 11, 2024 | Kowalski Rubiales | 0–1 | Mendoza Barcia | CE SUB 12.2024 | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Jul 10, 2024 | Kowalski Rubiales | ½–½ | Miralles Serna | CE SUB 12.2024 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jul 10, 2024 | Sanchez Ordas | 0–1 | Kowalski Rubiales | CE SUB 12.2024 | English Orangutan | |
| Jul 8, 2024 | Tallada Serret | 1–0 | Kowalski Rubiales | CE SUB 12.2024 | Caro-Kann Defense: Karpov Variation | |
| Apr 14, 2024 | Kowalski Rubiales | 0–1 | Galvez Ruiz | Menores Andalucia 2024 | Sicilian Defense: Old Sicilian | |
| Apr 14, 2024 | Fornieles Bretones | ½–½ | Kowalski Rubiales | Menores Andalucia 2024 | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Apr 13, 2024 | Kowalski Rubiales | ½–½ | Gaitan Galstyan | Menores Andalucia 2024 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Apr 13, 2024 | Gamez Matamoros | 0–1 | Kowalski Rubiales | Menores Andalucia 2024 | Caro-Kann Defense: Two Knights Attack | |
| Apr 12, 2024 | Kowalski Rubiales | ½–½ | Merino Ferrer | Menores Andalucia 2024 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Sep 27, 2024 | Villar Reymundo | 1–0 | Kowalski Rubiales | Round 1: Villar Reymundo, Juan Antonio - Kowalski Rubiales, Leo | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| Aug 7, 2023 | Kowalski Rubiales | 0–1 | Toroptsev | WSTC | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Aug 6, 2023 | Pentsko | 1–0 | Kowalski Rubiales | WSTC | Pirc Defense: Austrian Attack, Kurajica Variation | |
| Aug 4, 2023 | Marasini | 0–1 | Kowalski Rubiales | WSTC | Caro-Kann Defense | |
| Jul 22, 2023 | Mukhtarkhan | * | Kowalski Rubiales | CE SUB 14.2023 | ? | |
| Jul 21, 2023 | Kowalski Rubiales | * | Gomez Martinez | CE SUB 14.2023 | ? | |
| Jul 21, 2023 | Quintana Saez | * | Kowalski Rubiales | CE SUB 14.2023 | ? | |
| Jul 20, 2023 | Kowalski Rubiales | * | Arce Cano | CE SUB 14.2023 | ? | |
| Jul 19, 2023 | Kowalski Rubiales | * | Pena Montenegro | CE SUB 14.2023 | ? | |
| Jul 19, 2023 | Kharytonchuk | * | Kowalski Rubiales | CE SUB 14.2023 | ? | |
| Jul 18, 2023 | Lopez Blanco | * | Kowalski Rubiales | CE SUB 14.2023 | ? | |
| Jul 17, 2023 | Kowalski Rubiales | * | Vecillas Rey | CE SUB 14.2023 | ? | |
| Jul 17, 2023 | Latre Rodriguez | * | Kowalski Rubiales | CE SUB 14.2023 | ? | |
| Jul 15, 2023 | Reque Garcia | * | Kowalski Rubiales | CE Sub 12 2023 | ? | |
| Jul 14, 2023 | Kowalski Rubiales | * | Cid Barrio | CE Sub 12 2023 | ? | |
| Jul 14, 2023 | Kowalski Rubiales | 0–1 | Pallares Jover | CE Sub 12 2023 | French Defense: Exchange Variation, Svenonius Variation | |
| Jul 13, 2023 | El Faliri Mayer | * | Kowalski Rubiales | CE Sub 12 2023 | ? | |
| Jul 12, 2023 | Kowalski Rubiales | 0–1 | Martinez Ayala | CE Sub 12 2023 | Sicilian Defense: Old Sicilian | |
| Jul 12, 2023 | Osuna Smyshlyayev | * | Kowalski Rubiales | CE Sub 12 2023 | ? | |
| Jul 11, 2023 | Kowalski Rubiales | * | Ferre Obrados | CE Sub 12 2023 | ? | |
| Jul 10, 2023 | Kowalski Rubiales | 0–1 | Sukhodolskyi | CE Sub 12 2023 | French Defense: Exchange Variation, Monte Carlo Variation | |
| Jul 10, 2023 | Morales Rodriguez | * | Kowalski Rubiales | CE Sub 12 2023 | ? | |
| Apr 16, 2023 | Kowalski Rubiales | ½–½ | Giraldez Requena | Camperonatos Menores Andalucia 2023 | Sicilian Defense: Hyperaccelerated Dragon | |
| Apr 16, 2023 | Pabon Hermann | 0–1 | Kowalski Rubiales | Camperonatos Menores Andalucia 2023 | Caro-Kann Defense: Tartakower Variation | |
| Apr 15, 2023 | Kowalski Rubiales | ½–½ | Gasparyan | Camperonatos Menores Andalucia 2023 | Vienna Game: Vienna Gambit, Main Line | |
| Apr 15, 2023 | Kowalski Rubiales | 1–0 | Rodriguez Dogmoch | Camperonatos Menores Andalucia 2023 | French Defense: Rubinstein Variation | |
| Apr 15, 2023 | Kowalski Rubiales | 1–0 | Malagon Moreno | Camperonatos Menores Andalucia 2023 | Vienna Game: Vienna Gambit, Main Line | |
| Apr 15, 2023 | Kowalski Rubiales | 0–1 | Iba�ez Macias | Camperonatos Menores Andalucia 2023 | Sicilian Defense: Najdorf Variation | |
| Apr 15, 2023 | Herrero Pe�a | 0–1 | Kowalski Rubiales | Camperonatos Menores Andalucia 2023 | Philidor Defense: Lion Variation | |
| — | Kowalski Rubiales | 0–1 | Lenting | WSTC | Italian Game: Scotch Gambit, Max Lange Attack | |
| — | Kowalski Rubiales | ½–½ | Stasik | WSTC | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| — | Kowalski Rubiales | 1–0 | Reyes Zavaleta | WSTC | French Defense: Tarrasch Variation, Closed Variation | |
| — | Zhukenov | 1–0 | Kowalski Rubiales | WSTC | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| — | Derksen | 1–0 | Kowalski Rubiales | WSTC | Caro-Kann Defense: Two Knights Attack | |