| Jul 21, 2026 | Brenner | ½–½ | Hornfeld | Round 9: Brenner, Ehud - Hornfeld, Ariel | French Defense: Advance Variation, Paulsen Attack | |
| Jul 20, 2026 | Hornfeld | 0–1 | Zuker | Round 8: Hornfeld, Ariel - Zuker, Zivi | Zukertort Opening: Nimzo-Larsen Variation | |
| Jul 19, 2026 | Bisa | ½–½ | Hornfeld | Round 7: Bisa, Yair - Hornfeld, Ariel | Italian Game: Two Knights Defense, Max Lange Attack | |
| Jul 19, 2026 | Hornfeld | 1–0 | Shklovski | Round 6: Hornfeld, Ariel - Shklovski, Michael | Ruy Lopez: Closed, Pilnik Variation | |
| Jul 17, 2026 | Cohen | 0–1 | Hornfeld | Round 5: Cohen, Israel - Hornfeld, Ariel | Catalan Opening: Closed | |
| Jul 16, 2026 | Hornfeld | 1–0 | Blech | Round 4: Hornfeld, Ariel - Blech, Erik | Zukertort Opening: Nimzo-Larsen Variation | |
| Jul 15, 2026 | Arolovich | 0–1 | Hornfeld | Round 3: Arolovich, Eliav - Hornfeld, Ariel | Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack | |
| Oct 30, 2025 | Andre | 1–0 | Hornfeld | Round 2: Andre, Tomas - Hornfeld, Ariel | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Sep 30, 2025 | Podkopaev | 1–0 | Hornfeld | Round 11: Podkopaev, Andrei - Hornfeld, Ariel | Italian Game: Classical Variation, Greco Gambit | |
| Sep 29, 2025 | Hornfeld | 0–1 | Turdybay | Round 10: Hornfeld, Ariel - Turdybay, Sanzhar | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Sep 28, 2025 | Zhuk | 1–0 | Hornfeld | Round 9: Zhuk, Kiryl - Hornfeld, Ariel | Ruy Lopez: Morphy Defense, Mackenzie Variation | |
| Sep 27, 2025 | Hornfeld | 1–0 | Lee | Round 8: Hornfeld, Ariel - Lee, David J | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Sep 26, 2025 | Solovev | 0–1 | Hornfeld | Round 7: Solovev, Nikolai - Hornfeld, Ariel | Italian Game: Scotch Gambit, Anderssen Attack | |
| Sep 23, 2025 | Hornfeld | 0–1 | Altairuly | Round 5: Hornfeld, Ariel - Altairuly, Almir | Elephant Gambit: Paulsen Countergambit | |
| Sep 22, 2025 | Enkhmandal | ½–½ | Hornfeld | Round 4: Enkhmandal, Bayaraa - Hornfeld, Ariel | Ruy Lopez: Exchange Variation, King's Bishop Variation | |
| Sep 21, 2025 | Hornfeld | 0–1 | Le Phan Hoang Quan | Round 3: Hornfeld, Ariel - Le Phan Hoang Quan | Caro-Kann Defense: Karpov Variation, Modern Variation | |
| Sep 19, 2025 | Kaboyaone Karl Amour | ½–½ | Hornfeld | Round 1: Kaboyaone Karl Amour - Hornfeld, Ariel | Scotch Game: Potter Variation | |
| Apr 11, 2025 | Hornfeld | 1–0 | Bloom | Round 9: Hornfeld, Ariel - Bloom, Yoav | Sicilian Defense: Richter-Rauzer Variation | |
| Apr 10, 2025 | Salman | 0–1 | Hornfeld | Round 8: Salman, Jude - Hornfeld, Ariel | Mieses Opening | |
| Apr 9, 2025 | David | 0–1 | Hornfeld | Round 6: David, Adar - Hornfeld, Ariel | Queen's Pawn Game: London System | |
| Apr 4, 2025 | Hornfeld | 0–1 | Fusman | Round 1: Hornfeld, Ariel - Fusman, Noam | Ruy Lopez: Morphy Defense | |
| Apr 16, 2024 | Cohen | 1–0 | Hornfeld | Israel National Youth Championship Finals 2024 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| — | Hornfeld | 0–1 | Blonder | Round 2: Hornfeld, Ariel - Blonder, Daniel | Pirc Defense: Classical Variation | |
| — | Hornfeld | 1–0 | Opler | Round 2: Hornfeld, Ariel - Opler, Ziv | Owen Defense | |
| — | Hornfeld | 1–0 | Venturero | Round 3: Hornfeld, Ariel - Venturero, Guy | Sicilian Defense: Taimanov Variation, Szén Variation | |
| — | Hornfeld | 0–1 | Margolin-Herman | Round 6: Hornfeld, Ariel - Margolin-Herman, Ofek | Sicilian Defense: Najdorf Variation | |
| — | Cohen | 1–0 | Hornfeld | Round 5: Cohen, Ziv - Hornfeld, Ariel | French Defense: Steiner Variation | |
| — | Roth | 0–1 | Hornfeld | Round 9: Roth, Elai - Hornfeld, Ariel | Italian Game: Two Knights Defense | |