4 games · 2022–2026 · 1 classical · 3 online
Chigaev 11 draws2 Harvey
37.5% for Chigaev
Openings between them
| A05 | Zukertort Opening: Nimzo-Larsen Variation | 1 | 50.0% |
| A21 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | 1 | 0.0% |
| A30 | English Opening: Symmetrical Variation, Hedgehog Defense | 1 | 100.0% |
| A48 | East Indian Defense | 1 | 0.0% |
All games
| Harvey, Marcus R2439 | ½-½ | Chigaev, M2634 | TCh-ISL Kvika 2025-26 | 2026 |
| Harvey, Marcus R2486 | 1-0 | Chigaev, M2624 | Titled Tue 24th Sep Late | 2024 |
| Chigaev, M2632 | 1-0 | Harvey, Marcus R2466 | Titled Tue 8th Nov Late | 2022 |
| Harvey, Marcus R2456 | 1-0 | Chigaev, M2641 | Titled Tue 9th Aug Late | 2022 |