| Oct 4, 2025 | Grossmann | 0–1 | Madej | MP-rapid25 | English Opening | |
| Oct 4, 2025 | Grossmann | 0–1 | Pakleza | MP-rapid25 | English Opening: Caro-Kann Defensive System | |
| Jul 20, 2023 | Shilov | 1–0 | Grossmann | European Senior Team Chess Championship 2023 65+ | Caro-Kann Defense: Accelerated Panov Attack, Open Variation | |
| Jul 19, 2023 | Grossmann | ½–½ | Burchardt | European Senior Team Chess Championship 2023 65+ | Queen's Pawn Game: Symmetrical Variation | |
| Jul 18, 2023 | Grossmann | 0–1 | Van Kemenade | European Senior Team Chess Championship 2023 65+ | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Jul 17, 2023 | Freeman | 1–0 | Grossmann | European Senior Team Chess Championship 2023 65+ | Benoni Defense: Semi-Benoni | |
| Jul 16, 2023 | Grossmann | 0–1 | Quinn | European Senior Team Chess Championship 2023 65+ | English Opening: King's English Variation, Two Knights Variation, Fianchetto Line | |
| Jul 15, 2023 | Legky | 1–0 | Grossmann | European Senior Team Chess Championship 2023 65+ | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Jul 14, 2023 | Vadlja | 0–1 | Grossmann | European Senior Team Chess Championship 2023 65+ | Benoni Defense: Old Benoni | |
| Jul 13, 2023 | Grossmann | ½–½ | Holst | European Senior Team Chess Championship 2023 65+ | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 12, 2023 | Grossmann | 0–1 | Renman | European Senior Team Chess Championship 2023 65+ | English Opening: Symmetrical Variation, Two Knights Variation | |
| Dec 16, 2022 | Grossmann | 1–0 | Kosteniuk | Katowice | Dutch Defense: Queen's Knight Variation | |
| Dec 16, 2022 | Kosteniuk | 1–0 | Grossmann | Katowice | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Dec 10, 2022 | Grossmann | 0–1 | Zwardon | Chron PESEL pl OPEN C | Indian Defense: Knights Variation | |
| Dec 10, 2022 | Razin | 0–1 | Grossmann | Chron PESEL pl OPEN C | Benoni Defense: Old Benoni | |
| Dec 10, 2022 | Cyfka | * | Grossmann | Chron PESEL pl OPEN C | Benoni Defense: Old Benoni | |
| Dec 17, 2021 | Grossmann | 0–1 | Pacuszka | ME Katowice 2021 | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Dec 17, 2021 | Pacuszka | 1–0 | Grossmann | ME Katowice 2021 | Caro-Kann Defense | |
| Jul 31, 2021 | Grossmann | 0–1 | Zapolski | anderssen2021 | King's Indian Defense: Sämisch Variation, Orthodox Variation | |
| Jul 31, 2021 | Grossmann | 1–0 | Architek | anderssen2021 | King's Indian Defense: Sämisch Variation, Yates Defense | |
| Jul 31, 2021 | Grossmann | 0–1 | Wisniewski | anderssen2021 | Benko Gambit Accepted: Fully Accepted Variation | |
| Jul 31, 2021 | Grossmann | 1–0 | Dahche | anderssen2021 | Benko Gambit Accepted: Fianchetto Variation | |
| Jul 31, 2021 | Heinzel | 0–1 | Grossmann | anderssen2021 | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jul 31, 2021 | Den Boer | 1–0 | Grossmann | anderssen2021 | Caro-Kann Defense: Panov Attack | |
| Jul 31, 2021 | Bednarczyk | 0–1 | Grossmann | anderssen2021 | Caro-Kann Defense | |
| Jul 31, 2021 | Karaszewski | 1–0 | Grossmann | anderssen2021 | Caro-Kann Defense: Panov Attack | |
| — | Grossmann | 1–0 | Toczynska | Memorial Adolfa Anderssena 2025 | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| — | Grossmann | 1–0 | Kueck | Memorial Adolfa Anderssena 2025 | English Opening: Symmetrical Variation, Normal Variation | |
| — | Grossmann | 1–0 | Witczak | Memorial Adolfa Anderssena 2025 | King's Indian Defense: Orthodox Variation, Classical System | |
| — | Grossmann | 1–0 | Babinska | Memorial Adolfa Anderssena 2025 | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation | |
| — | Grossmann | 0–1 | Golenia | anderssen2025 | English Opening: King's English Variation, Reversed Closed Sicilian | |
| — | Razin | 1–0 | Grossmann | anderssen2025 | Benoni Defense: Semi-Benoni | |
| — | Alexeev | ½–½ | Grossmann | Memorial Adolfa Anderssena 2025 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| — | Zhuk | 1–0 | Grossmann | anderssen2025 | Caro-Kann Defense: Exchange Variation | |
| — | Mocny | 1–0 | Grossmann | Memorial Adolfa Anderssena 2025 | Benoni Defense: Old Benoni | |