| Jun 16, 2026 | Zaveckis | 0–1 | Stremavicius | XXII chess festival. Baltija Cup 2026 (open B, U2400) | Benoni Defense: French Benoni | |
| Jun 15, 2026 | Zaveckis | 1–0 | Cepauskas | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Queen's Pawn Game: London System | |
| Jun 15, 2026 | Zaveckis | 1–0 | Konovalovas | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | ? | |
| Jun 15, 2026 | Savickiene | 1–0 | Zaveckis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Trompowsky Attack | |
| Jun 15, 2026 | Dziuve | 1–0 | Zaveckis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Jun 15, 2026 | Navickas | 1–0 | Zaveckis | XXII chess festival. Baltija Cup 2026 (open B, U2400) | Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation | |
| Jun 14, 2026 | Zaveckis | 1–0 | Gulbinas | XXII chess festival. Baltija Cup 2026 (open B, U2400) | Dutch Defense: Manhattan Gambit, Anti-Classical Line | |
| Jun 14, 2026 | Zaveckis | ½–½ | Viskelis | XXII chess festival. Baltija Cup 2026 (open B, U2400) | Queen's Pawn Game: London System | |
| Apr 2, 2026 | Zaveckis | 0–1 | Peciura | Round 9: Zaveckis, Mantas - Peciura, Aronas | Benoni Defense: Benoni-Indian Defense, Kingside Move Order | |
| Apr 1, 2026 | Zaveckis | 0–1 | Tomkus | Round 8: Zaveckis, Mantas - Tomkus, Augustas | Queen's Pawn Game: London System | |
| Mar 31, 2026 | Kraucenka | 0–1 | Zaveckis | Round 7: Kraucenka, Justas - Zaveckis, Mantas | Queen's Pawn Game: Accelerated London System | |
| Mar 31, 2026 | Kuprys | 1–0 | Zaveckis | Round 6: Kuprys, Dominik - Zaveckis, Mantas | Caro-Kann Defense: Breyer Variation | |
| Mar 30, 2026 | Zaveckis | 0–1 | Jocys | Round 5: Zaveckis, Mantas - Jocys, Dalius | Benoni Defense: Benoni-Indian Defense, Kingside Move Order | |
| Mar 30, 2026 | Ragainis | 0–1 | Zaveckis | Round 4: Ragainis, Gediminas - Zaveckis, Mantas | Rapport-Jobava System | |
| Mar 29, 2026 | Zaveckis | 0–1 | Ser | Round 3: Zaveckis, Mantas - Ser, Daniel | Queen's Pawn Game: London System | |
| Mar 28, 2026 | Zaveckis | 0–1 | Indriunas | Round 1: Zaveckis, Mantas - Indriunas, Matas | Rapport-Jobava System | |
| Feb 16, 2026 | Zaveckis | 1–0 | Vaitkunas | 2026 m. Lietuvos jaunučių-jaunių šachmatų čempionatas | Queen's Pawn Game: London System | |
| Feb 15, 2026 | Kavalnis | 1–0 | Zaveckis | 2026 m. Lietuvos jaunučių-jaunių šachmatų čempionatas | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Feb 14, 2026 | Navickas | ½–½ | Zaveckis | 2026 m. Lietuvos jaunučių-jaunių šachmatų čempionatas | Catalan Opening: Closed | |
| Nov 23, 2025 | Steponavicius | 1–0 | Zaveckis | Round 8: Steponavicius, Petras - Zaveckis, Mantas | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Nov 23, 2025 | Zaveckis | 1–0 | Zutaute | Round 7: Zaveckis, Mantas - Zutaute, Leja | Pirc Defense: Classical Variation | |
| Nov 22, 2025 | Kapickis | ½–½ | Zaveckis | Round 6: Kapickis, Karolis - Zaveckis, Mantas | Queen's Pawn Game: Symmetrical Variation | |
| Nov 22, 2025 | Zaveckis | ½–½ | Kersys | Round 5: Zaveckis, Mantas - Kersys, Zygimantas | Queen's Pawn Game: London System | |
| Nov 21, 2025 | Koniecnas | 0–1 | Zaveckis | Round 4: Koniecnas, Vilius - Zaveckis, Mantas | Tarrasch Defense: Symmetrical Variation | |
| Nov 21, 2025 | Zaveckis | 0–1 | Baranauskas | Round 3: Zaveckis, Mantas - Baranauskas, Nojus | London System | |
| Nov 20, 2025 | Baisynov | 1–0 | Zaveckis | Round 2: Baisynov, Islambek - Zaveckis, Mantas | Caro-Kann Defense: Exchange Variation | |
| Nov 20, 2025 | Zaveckis | 1–0 | Luksys | Round 1: Zaveckis, Mantas - Luksys, Domantas | Queen's Pawn Game: London System | |
