| Jun 15, 2026 | Kalvaitis | 0–1 | Puzas | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | French Defense: Advance Variation, Paulsen Attack | |
| Jun 15, 2026 | Vaitiekunas | 0–1 | Kalvaitis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Jun 15, 2026 | Kalvaitis | 0–1 | Solys | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Alekhine Defense: Modern Variation, Larsen Variation | |
| Jun 15, 2026 | Armonaitis | 0–1 | Kalvaitis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | French Defense: La Bourdonnais Variation | |
| Jun 15, 2026 | Kalvaitis | 1–0 | Pritulina | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 15, 2026 | Kalvaitis | 1–0 | Blazys | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 15, 2026 | Cepauskas | ½–½ | Kalvaitis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 15, 2026 | Kalvaitis | 1–0 | Viskelis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Caro-Kann Defense: Two Knights Attack | |
| Jun 15, 2026 | Zutautas | 0–1 | Kalvaitis | XXII chess festival. Baltija Blitz II Cup 2026 (open D2) | Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation | |
| Jun 12, 2026 | Kalvaitis | 1–0 | Pritulina | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Modern Defense: Pseudo-Austrian Attack | |
| Jun 12, 2026 | Navickas | 0–1 | Kalvaitis | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Catalan Opening: Open Defense, Classical Line | |
| Jun 12, 2026 | Kalvaitis | 1–0 | Sakinis | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Modern Defense: Pseudo-Austrian Attack | |
| Jun 12, 2026 | Pidluznij | 1–0 | Kalvaitis | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Zukertort Opening: Nimzo-Larsen Variation | |
| Jun 12, 2026 | Kalvaitis | 1–0 | Puzas | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | French Defense: Advance Variation, Paulsen Attack | |
| Jun 12, 2026 | Kalvaitis | 1–0 | Barbsys | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jun 12, 2026 | Mikolavicius | 1–0 | Kalvaitis | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Jun 12, 2026 | Viskelis | * | Kalvaitis | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | ? | |
| Jun 12, 2026 | Kalvaitis | 1–0 | Peteris | XXII chess festival. Baltija Blitz I Cup 2026 (open D1) | Owen Defense | |
| Apr 2, 2026 | Zaksaite | 0–1 | Kalvaitis | Round 9: Zaksaite, Salomeja - Kalvaitis, Sigitas | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Apr 1, 2026 | Kalvaitis | 1–0 | Dienine | Round 8: Kalvaitis, Sigitas - Dienine, Daiva | Latvian Gambit Accepted: Leonhardt Variation | |
| Mar 31, 2026 | Dijokas | ½–½ | Kalvaitis | Round 7: Dijokas, Jokubas - Kalvaitis, Sigitas | Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense | |
| Mar 31, 2026 | Kalvaitis | 1–0 | Vaitiekunas | Round 6: Kalvaitis, Sigitas - Vaitiekunas, Motiejus | Scotch Game: Schmidt Variation | |
| Mar 30, 2026 | Kavalnis | 1–0 | Kalvaitis | Round 5: Kavalnis, Rytis - Kalvaitis, Sigitas | French Defense: Winawer Variation, Warsaw Variation | |
| Mar 30, 2026 | Kalvaitis | ½–½ | Mikolavicius | Round 4: Kalvaitis, Sigitas - Mikolavicius, Julius | Sicilian Defense: Moscow Variation, Main Line | |
| Mar 29, 2026 | Stremavicius | 1–0 | Kalvaitis | Round 3: Stremavicius, Pijus - Kalvaitis, Sigitas | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Mar 29, 2026 | Kalvaitis | 1–0 | Jankus | Round 2: Kalvaitis, Sigitas - Jankus, Giedrius | Scandinavian Defense: Richter Variation | |
| Mar 28, 2026 | Radzevicius | 0–1 | Kalvaitis | Round 1: Radzevicius, Sigitas - Kalvaitis, Sigitas | English Opening: Agincourt Defense | |
| Mar 21, 2026 | Kalvaitis | 0–1 | Vedrickas | Round 6: Kalvaitis, Sigitas - Vedrickas, Tautvydas | Modern Defense: Pseudo-Austrian Attack | |
| Jan 4, 2026 | Divry | 1–0 | Kalvaitis | Open A | Queen's Gambit Declined: Exchange Variation | |
| Jan 3, 2026 | Kalvaitis | 1–0 | Myrmus | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | French Defense: Advance Variation, Euwe Variation | |
| Jan 2, 2026 | Nagly | ½–½ | Kalvaitis | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | Queen's Gambit Declined: Exchange Variation | |
| Jan 2, 2026 | Kalvaitis | ½–½ | Jires | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Dec 31, 2025 | Kucharski | ½–½ | Kalvaitis | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | French Defense: Tarrasch Variation, Open System, Main Line | |
| Dec 30, 2025 | Kalvaitis | ½–½ | Phatak Aanjaneya | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | Scotch Game: Schmidt Variation | |
| Dec 29, 2025 | Zawisza | 1–0 | Kalvaitis | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | French Defense: Advance Variation, Paulsen Attack | |
| Dec 28, 2025 | Kalvaitis | ½–½ | Jaworski | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | Sicilian Defense: Moscow Variation | |
| Dec 27, 2025 | Latzke | 1–0 | Kalvaitis | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | Indian Defense: Anti-Nimzo-Indian | |
| Nov 23, 2025 | Kalvaitis | ½–½ | Baisynov | Round 8: Kalvaitis, Sigitas - Baisynov, Islambek | Ruy Lopez: Berlin Defense | |
| Nov 23, 2025 | Andrusevics | 0–1 | Kalvaitis | Round 7: Andrusevics, Jegors - Kalvaitis, Sigitas | London System, with Be2 | |
| Nov 22, 2025 | Kalvaitis | 1–0 | Michailov | Round 6: Kalvaitis, Sigitas - Michailov, Andrej | Scotch Game: Schmidt Variation | |
| Nov 21, 2025 | Kalvaitis | ½–½ | Jalanskij | Round 4: Kalvaitis, Sigitas - Jalanskij, Sergej | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Nov 21, 2025 | Macionis | 0–1 | Kalvaitis | Round 3: Macionis, Zigmas - Kalvaitis, Sigitas | French Defense: Tarrasch Variation, Guimard Defense | |
| Nov 20, 2025 | Kalvaitis | 1–0 | Konovalovas | Round 2: Kalvaitis, Sigitas - Konovalovas, Paulius | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Nov 20, 2025 | Nainys | 1–0 | Kalvaitis | Round 5: Nainys, Zanas - Kalvaitis, Sigitas | Indian Defense: London System | |
| Nov 20, 2025 | Zutaute | 0–1 | Kalvaitis | Round 1: Zutaute, Leja - Kalvaitis, Sigitas | Benoni Defense: Old Benoni, Mujannah Formation | |
| Nov 15, 2025 | Kalvaitis | 1–0 | Bubnys | Round 9: Kalvaitis, Sigitas - Bubnys, Robertas | Scotch Game: Schmidt Variation | |
| Nov 15, 2025 | Filipovs | 1–0 | Kalvaitis | Round 8: Filipovs, Sergejs - Kalvaitis, Sigitas | French Defense: Exchange Variation | |
| Nov 15, 2025 | Kalvaitis | 0–1 | Povilaitis | Round 7: Kalvaitis, Sigitas - Povilaitis, Matas | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Nov 15, 2025 | Michailovas | 0–1 | Kalvaitis | Round 6: Michailovas, Ugnius - Kalvaitis, Sigitas | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Nov 15, 2025 | Kalvaitis | 0–1 | Sakalauskas | Round 5: Kalvaitis, Sigitas - Sakalauskas, Vaidas | Sicilian Defense: Hyperaccelerated Dragon | |
| Nov 15, 2025 | Vasiljeva | 0–1 | Kalvaitis | Round 4: Vasiljeva, Sofja - Kalvaitis, Sigitas | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Nov 15, 2025 | Kalvaitis | 1–0 | Leclere | Round 3: Kalvaitis, Sigitas - Leclere, Daniel | Scotch Game: Schmidt Variation | |
| Nov 15, 2025 | Kalvaitis | 1–0 | Dziuve | Round 1: Kalvaitis, Sigitas - Dziuve, Edvinas | Scotch Game: Classical Variation | |
| Nov 15, 2025 | Ozhaiska | 0–1 | Kalvaitis | Round 2: Ozhaiska, Yaryna - Kalvaitis, Sigitas | French Defense: Winawer Variation, Warsaw Variation | |
| Mar 24, 2024 | Stremavicius | 1–0 | Kalvaitis | Round 5: Stremavicius, Pijus - Kalvaitis, Sigitas | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
