4 games · 2014–2021 · 1 classical · 0 online
Petrosian 12 draws1 Onischuk
50.0% for Petrosian
Openings between them
| B09 | Pirc Defense: Austrian Attack, Unzicker Attack | 2 | 25.0% |
| A04 | Zukertort Opening: Kingside Fianchetto | 1 | 100.0% |
| B06 | Modern Defense: Standard Defense | 1 | 50.0% |
All games
| Onischuk, V2620 | 1-0 | Petrosian, Tl2573 | World Blitz 2021 | 2021 |
| Petrosian, Tl2601 | 1-0 | Onischuk, V2637 | World Blitz 2017 | 2017 |
| Onischuk, V2612 | ½-½ | Petrosian, Tl2625 | World Blitz 2015 | 2015 |
| Onischuk, V2614 | ½-½ | Petrosian, Tl2651 | 3rd Al Ain Chess Classic | 2014 |