| Game | Result | Opening | Date |
|---|---|---|---|
| Costa, Leonardo (2555) – Shyaam Nikhil P (2428) | 1-0 | Sicilian Defense: Kan Variation | 2026-08-15 |
| Sardana, Rishi (2506) – Costa, Leonardo (2555) | 1-0 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | 2026-08-14 |
| Costa, Leonardo (2555) – Muthaiah AL (2455) | 1-0 | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | 2026-08-13 |
| Chasin, Nico (2470) – Costa, Leonardo (2555) | 1/2-1/2 | Queen's Gambit Declined: Exchange Variation, Positional Variation | 2026-08-12 |
| Costa, Leonardo (2555) – Rios Gomez, Cristhian Camilo (2406) | 1-0 | Indian Defense: Accelerated London System | 2026-08-11 |
| Costa, Leonardo (2555) – Marin, Mihail (2402) | 1/2-1/2 | Sicilian Defense: French Variation | 2026-08-10 |
| Keleberda, Tymur (2335) – Costa, Leonardo (2555) | 0-1 | Queen's Gambit Declined: Queen's Knight Variation | 2026-08-10 |
| Budyi, Danylo (2209) – Costa, Leonardo (2555) | 1/2-1/2 | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | 2026-08-08 |
| Costa, Leonardo (2540) – Kollars, Dmitrij (2634) | 1/2-1/2 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | 2026-07-25 |
| Hagner, Bennet (2451) – Costa, Leonardo (2540) | 0-1 | Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation | 2026-07-24 |
| Costa, Leonardo (2540) – Svane, Rasmus (2624) | 1/2-1/2 | Italian Game: Giuoco Pianissimo, Normal | 2026-07-23 |
| Braun, Georg, Dr. (2374) – Costa, Leonardo (2540) | 0-1 | Sicilian Defense: Velimirovic Attack | 2026-07-22 |
| Costa, Leonardo (2540) – Kuegel, Tobias (2361) | 1/2-1/2 | Petrov's Defense: Classical Attack | 2026-07-21 |
| Donchenko, Alexander (2635) – Costa, Leonardo (2540) | 1-0 | Catalan Opening: Closed | 2026-07-20 |
| Wagner, Dennis (2589) – Costa, Leonardo (2540) | 0-1 | Queen's Gambit Declined | 2026-07-19 |
| Costa, Leonardo (2540) – Engel, Luis (2588) | 1-0 | Sicilian Defense: Najdorf Variation, Adams Attack | 2026-07-18 |
| Huschenbeth, Niclas (2586) – Costa, Leonardo (2540) | 1/2-1/2 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | 2026-07-17 |
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