| 26 jun 2026 | Guo, Ethan 2404 | Negrean, Andrei 2366 | 1-0 | B94 Defensa Siciliana: Najdorf Variation | FIDE World Youth Chess Championships 2026 | O14 | 40 | Ver |
| 25 jun 2026 | Mamikonyan, Artem T 2210 | Guo, Ethan 2404 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, Lipnitsky Attack | FIDE World Youth Chess Championships 2026 | O14 | 77 | Ver |
| 24 jun 2026 | Guo, Ethan 2404 | Lacan Rus, David 2356 | ½-½ | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | FIDE World Youth Chess Championships 2026 | O14 | 40 | Ver |
| 17 jun 2026 | Rusu, Lucas 2191 | Guo, Ethan 2404 | 0-1 | B92 Defensa Siciliana: Najdorf Variation, Opocensky Variation, Traditional Line | FIDE World Youth Chess Championships 2026 | O14 | 31 | Ver |
| 16 jun 2026 | Guo, Ethan 2404 | Marchand, Calix 2127 | 1-0 | B45 Defensa Siciliana: Four Knights Variation, Exchange Variation | FIDE World Youth Chess Championships 2026 | O14 | 45 | Ver |
| 12 jun 2026 | Smirnov, Mark 2436 | Guo, Ethan 2404 | 1-0 | B23 Defensa Siciliana: Closed | FIDE World Youth Chess Championships 2026 | O14 | 42 | Ver |
| 12 jun 2026 | Guo, Ethan 2404 | Radzimski, Antoni 2394 | 1-0 | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | FIDE World Youth Chess Championships 2026 | O14 | 54 | Ver |
| 12 jun 2026 | Ambartsumian, Tyhran 2398 | Guo, Ethan 2404 | ½-½ | B54 Defensa Siciliana: Modern Variations, Main Line | FIDE World Youth Chess Championships 2026 | O14 | 33 | Ver |
| 12 jun 2026 | Guo, Ethan 2404 | Vorobyov, Radmir 2169 | 1-0 | B12 Defensa Caro-Kann: Advance Variation, Botvinnik-Carls Defense | FIDE World Youth Chess Championships 2026 | O14 | 39 | Ver |
| 12 jun 2026 | Guo, Ethan 2404 | Liu, Patrick 2205 | 1-0 | C50 Apertura Italiana: Giuoco Piano | FIDE World Youth Chess Championships 2026 | O14 | 52 | Ver |
| 20 abr 2026 | Zharas, Aldiyar 2071 | Guo, Ethan 2280 | 1-0 | E04 Apertura Catalana: Open Defense | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 33 | Ver |
| 20 abr 2026 | Sharipov, Eduard 2136 | Guo, Ethan 2280 | 0-1 | B23 Defensa Siciliana: Closed | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 69 | Ver |
| 20 abr 2026 | Guo, Ethan 2280 | Smirnov, Mark 2469 | 0-1 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 39 | Ver |
| 19 abr 2026 | Guo, Ethan 2280 | Wang, Ted 2155 | 0-1 | B62 Defensa Siciliana: Richter-Rauzer Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 51 | Ver |
| 19 abr 2026 | Suvara, Filip 2095 | Guo, Ethan 2280 | 0-1 | D01 Rapport-Jobava System | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 43 | Ver |
| 19 abr 2026 | Guo, Ethan 2280 | Krstic, David 2084 | ½-½ | B76 Defensa Siciliana: Dragon Variation, Yugoslav Attack, Modern Line | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 84 | Ver |
| 17 abr 2026 | Akhmet, Suleyman 2114 | Guo, Ethan 2280 | 0-1 | A46 Ataque Torre: Classical Defense | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | O14 | 30 | Ver |
| 17 abr 2026 | Akhmet, Suleyman 2058 | Guo, Ethan 2158 | 0-1 | E49 Defensa Nimzoindia: Normal Variation, Botvinnik System | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | O14 | 52 | Ver |
| 17 abr 2026 | Guo, Ethan 2158 | Zharas, Aldiyar 2168 | 1-0 | B31 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | O14 | 76 | Ver |
| 17 abr 2026 | Guo, Ethan 2158 | Sharipov, Eduard 2039 | 0-1 | B62 Defensa Siciliana: Richter-Rauzer Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | O14 | 54 | Ver |