34 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Greiner, Jan Oluf | Pitzschel, Joerg | 1-0 | A04 | Round 6: Greiner, Jan Oluf - Pitzschel, Joerg | 2025-05-31 |
| Greiner, Jan Oluf | Lipp, Johannes | 1-0 | B33 | Round 4: Greiner, Jan Oluf - Lipp, Johannes | 2025-05-30 |
| Greiner, Jan Oluf | Tatar, Anna | 1-0 | A06 | Round 2: Greiner, Jan Oluf - Tatar, Anna | 2025-05-29 |
| Greiner, Jan Oluf | Knorr, Frank | 1-0 | B07 | Round 6: Greiner, Jan Oluf - Knorr, Frank | 2024-11-02 |
| Greiner, Jan Oluf | Hutwalker, Michael | 1/2-1/2 | C42 | Round 4: Greiner, Jan Oluf - Hutwalker, Michael | 2024-11-01 |
| Greiner, Jan Oluf | Nechitaylo, Lev | 0-1 | B30 | Round 2: Greiner, Jan Oluf - Nechitaylo, Lev | 2024-10-31 |
| Greiner, Jan Oluf | Jaehnert, Jamie Mares | 1-0 | A11 | ODJM B 2024 | 2024-05-25 |
| Greiner, Jan Oluf | Will, Elina | 0-1 | D02 | ODJM B 2024 | 2024-05-24 |
| Greiner, Jan Oluf | Foos, Vanessa | 0-1 | B30 | ODJM B 2024 | 2024-05-21 |
| Greiner, Jan Oluf | Sniegowski, Richard | 0-1 | C42 | ODJM B 2024 | 2024-05-19 |
| Greiner, Jan Oluf | Cristinel Stancu | 1-0 | B00 | 3. Itzehoer Schach Open (37-58) | 2024-05-12 |
| Greiner, Jan Oluf | Wartenberg, Alissa | 0-1 | B40 | 3. Itzehoer Schach Open | 2024-05-11 |
| Greiner, Jan Oluf | Nautsch, Thomas | 1-0 | B30 | 3. Itzehoer Schach Open | 2024-05-10 |
| Greiner, Jan Oluf | Pittelkow, Andreas | 0-1 | B30 | 3. Itzehoer Schach Open | 2024-05-09 |
| Jan Oluf Greiner | Isa Mohideen Farouk | 0-1 | C50 | Round 5.2: Jan Oluf Greiner - Isa Mohideen Farouk | 2022-10-03 |
| Jan Oluf Greiner | Piet Dau-Schmidt | 0-1 | B10 | Round 3.2: Jan Oluf Greiner - Piet Dau-Schmidt | 2022-10-02 |
| Jan Oluf Greiner | Lotta Kieckbusch | 0-1 | B20 | Round 2.2: Jan Oluf Greiner - Lotta Kieckbusch | 2022-10-01 |