| Jun 26, 2026 | Mengozzi | 0–1 | Coetsee | Round 11: Mengozzi, Andrea - Coetsee, Dewald | ? | |
| Jun 25, 2026 | Coetsee | 0–1 | Menahem | Round 10: Coetsee, Dewald - Menahem, Adi | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 24, 2026 | Coetsee | 1–0 | Testelecs | Round 9: Coetsee, Dewald - Testelecs, Ilja Kuprijans | Ruy Lopez: Closed, Yates Variation | |
| Jun 23, 2026 | Angulo Perez | 1–0 | Coetsee | World Youth Chess Championship 2026 U18 Open | Sicilian Defense: Scheveningen Variation, Classical Variation | |
| Jun 22, 2026 | Mukhamed | 1–0 | Coetsee | Round 7: Mukhamed, Nazir - Coetsee, Dewald | Sicilian Defense: French Variation | |
| Jun 20, 2026 | Coetsee | ½–½ | Valpas | Round 6: Coetsee, Dewald - Valpas, Jami | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 19, 2026 | Leal Mendez | 0–1 | Coetsee | Round 5: Leal Mendez, Jose Raul - Coetsee, Dewald | Blackmar-Diemer Gambit Accepted: Euwe Defense | |
| Jun 18, 2026 | Coetsee | 0–1 | Abdin | Round 4: Coetsee, Dewald - Abdin, Mahmoud | Sicilian Defense: Open | |
| Jun 17, 2026 | Tsai | 0–1 | Coetsee | Round 3: Tsai, Chia-Chen - Coetsee, Dewald | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch | |
| Jun 16, 2026 | Coetsee | 0–1 | Papaioannou | Round 2: Coetsee, Dewald - Papaioannou, Dimitrios | Sicilian Defense: Kalashnikov Variation | |
| Jun 15, 2026 | Kot | 1–0 | Coetsee | Round 1: Kot, Emanuel - Coetsee, Dewald | Sicilian Defense: Taimanov Variation | |
| Jul 4, 2025 | Coetsee | 1–0 | PRINCE CHIDEMBO | B-section | Ruy Lopez: Morphy Defense, Norwegian Variation | |
| Jul 3, 2025 | Coetsee | 0–1 | Mankga | B-section | Sicilian Defense: Scheveningen Variation, Classical Main Line | |
| Jul 2, 2025 | Ngcongo | 0–1 | Coetsee | B-section | Sicilian Defense: Taimanov Variation | |
| Jun 30, 2025 | Bulelani | 1–0 | Coetsee | B-section | Benoni Defense: Taimanov Variation | |
| Jun 29, 2025 | Coetsee | 1–0 | Meme | B-section | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 28, 2025 | Coetsee | 1–0 | PRINCE CHIDEMBO | B-section | Sicilian Defense: Kan Variation, Knight Variation | |
| Apr 29, 2025 | Mbedza | 1–0 | Coetsee | Round 6: Mbedza, Richard - Coetsee, Dewald | Sicilian Defense | |
| Apr 28, 2025 | Coetsee | ½–½ | Soojay | Round 5: Coetsee, Dewald - Soojay, Jorah | Owen Defense | |
| Apr 28, 2025 | Thorulsley | * | Coetsee | Round 4: Thorulsley, Kairaav - Coetsee, Dewald | ? | |
| Apr 27, 2025 | Coetsee | 0–1 | Mnyasta | Round 3: Coetsee, Dewald - Mnyasta, Tezihano | Sicilian Defense: Classical Variation, Sozin Attack | |
