| 22 ago 2026 | Munkhbayar, Unurbayar 2018 | Leenen, Boyd 2232 | 0-1 | C58 Apertura Italiana: Two Knights Defense, Polerio Defense, Bishop Check Line | EUCC 2026 U14 | 27 | Ver |
| 6 ago 2026 | Wites, Adam 2137 | Leenen, Boyd 2232 | ½-½ | C92 Apertura Española (Ruy López): Closed, Flohr System | EUCC 2026 U14 | 57 | Ver |
| 6 ago 2026 | Leenen, Boyd 2232 | Mikolavicius, Julius 2097 | 0-1 | D35 Gambito de Dama rehusado: Exchange Variation, Sämisch Variation | EUCC 2026 U14 | 30 | Ver |
| 6 ago 2026 | Petroff, Vlad 2078 | Leenen, Boyd 2232 | 0-1 | D43 Defensa Semieslava | EUCC 2026 U14 | 45 | Ver |
| 6 ago 2026 | Leenen, Boyd 2232 | Krstic, David 2094 | 1-0 | D02 Apertura de Peón de Dama: Zukertort Variation | EUCC 2026 U14 | 42 | Ver |
| 6 ago 2026 | Leenen, Boyd 2232 | Parvu, Razvan-George 2062 | 1-0 | D33 Defensa Tarrasch: Dubov Tarrasch | EUCC 2026 U14 | 60 | Ver |
| 1 ago 2026 | Turcsanyi, Vince Gergo 2348 | Leenen, Boyd 2195 | 0-1 | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | European Youth Team Chess Championship - Open18 | 41 | Ver |
| 22 jul 2026 | Wettach, Michel 2048 | Leenen, Boyd 2195 | ½-½ | C08 Defensa Francesa: Tarrasch Variation, Open System | Ghent Open 2026 | 40 | Ver |
| 21 jul 2026 | Leenen, Boyd 2195 | Vantorre, Nils 2236 | ½-½ | D29 Gambito de Dama aceptado: Classical Defense, Alekhine System, Main Line | Ghent Open 2026 | 36 | Ver |
| 21 jul 2026 | Bekker, Stefan 2345 | Leenen, Boyd 2195 | ½-½ | E06 Apertura Catalana: Closed | Ghent Open 2026 | 52 | Ver |
| 20 jul 2026 | Leenen, Boyd 2195 | Straat, Rody 2068 | 1-0 | D11 Defensa Eslava: Quiet Variation, Pin Defense | Ghent Open 2026 | 27 | Ver |
| 18 jul 2026 | Van der Linden, Hans 2031 | Leenen, Boyd 2195 | 0-1 | D43 Defensa Semieslava: Anti-Moscow Gambit | Ghent Open 2026 | 32 | Ver |
| 10 jul 2026 | Leenen, Boyd 2195 | Pijpers, Arthur 2486 | 0-1 | D92 Defensa Grünfeld: Three Knights Variation, Hungarian Attack | Ghent Open 2026 | 65 | Ver |
| 21 jun 2026 | Beerdsen, Thomas 2519 | Leenen, Boyd 2188 | 1-0 | D52 Gambito de Dama rehusado | HSG Open 2026 A | 63 | Ver |
| 20 jun 2026 | Lombaers, Peter 2343 | Leenen, Boyd 2188 | ½-½ | D43 Defensa Semieslava | HSG Open 2026 A | 27 | Ver |
| 19 jun 2026 | Leenen, Boyd 2188 | Bagrationi, Alexander 2444 | ½-½ | E91 Defensa India de Rey: Orthodox Variation | HSG Open 2026 A | 29 | Ver |
| 25 may 2026 | Leenen, Boyd 2261 | Battistelli, Fausto 2185 | ½-½ | E94 Defensa India de Rey: Orthodox Variation | 18th BPB Limburg Open | Open | 33 | Ver |
| 25 may 2026 | Gurevich, Mikhail 2554 | Leenen, Boyd 2261 | 1-0 | D35 Gambito de Dama rehusado: Harrwitz Attack | 18th BPB Limburg Open | Open | 138 | Ver |
| 24 may 2026 | De Block, Fabio 2145 | Leenen, Boyd 2261 | ½-½ | D36 Gambito de Dama rehusado: Exchange Variation, Reshevsky Variation | 18th BPB Limburg Open | Open | 87 | Ver |
| 10 may 2026 | Westerhof, Fleur 2055 | Leenen, Boyd 2261 | 0-1 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | Ronde 6: Westerhof, Fleur - Leenen, Boyd | 42 | Ver |