| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A Flick vs I Semjonovs |
| ½-½ | 92 | 2018 | Pardubice Open-A | E10 Queen's Pawn Game |
| 27. I Semjonovs vs A Frolov |
| ½-½ | 61 | 2018 | Pardubice Open-A | B30 Sicilian |
| 28. J Michenka vs I Semjonovs |
| 1-0 | 39 | 2018 | Pardubice Open-A | A33 English, Symmetrical |
| 29. Y Krykun vs I Semjonovs |
| 1-0 | 38 | 2018 | Pardubice Open-A | A58 Benko Gambit |
| 30. I Semjonovs vs S Burian |
| ½-½ | 80 | 2018 | Pardubice Open-A | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 31. I Semjonovs vs M Lianes Garcia |
| ½-½ | 23 | 2018 | World Youth Open U16 | C70 Ruy Lopez |
| 32. F Baenziger vs I Semjonovs |
| ½-½ | 27 | 2018 | World Youth Open U16 | A43 Old Benoni |
| 33. Gleizerov vs I Semjonovs |
| ½-½ | 32 | 2019 | Panevezys Elite Open | D85 Grunfeld |
| 34. R Hovhannisyan vs I Semjonovs |
| ½-½ | 95 | 2019 | European Championship | A48 King's Indian |
| 35. I Semjonovs vs E Safarli |
| ½-½ | 21 | 2019 | European Championship | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 36. M Lagarde vs I Semjonovs |
| 1-0 | 27 | 2019 | European Championship | A49 King's Indian, Fianchetto without c4 |
| 37. I Semjonovs vs E Milikow |
| 1-0 | 32 | 2019 | European Championship | A04 Reti Opening |
| 38. A Valsecchi vs I Semjonovs |
 | 1-0 | 28 | 2019 | European Championship | B90 Sicilian, Najdorf |
| 39. I Semjonovs vs S van Dael |
| 1-0 | 76 | 2019 | European Championship | A05 Reti Opening |
| 40. A Kelires vs I Semjonovs |
| ½-½ | 45 | 2019 | European Championship | A45 Queen's Pawn Game |
| 41. I Semjonovs vs Keymer |
| 0-1 | 41 | 2019 | European Championship | B90 Sicilian, Najdorf |
| 42. M Petkov vs I Semjonovs |
| ½-½ | 64 | 2019 | European Championship | A45 Queen's Pawn Game |
| 43. I Semjonovs vs E Ozenir |
| 1-0 | 31 | 2019 | European Championship | E16 Queen's Indian |
| 44. A Rosell vs I Semjonovs |
| 1-0 | 47 | 2019 | European Championship | A49 King's Indian, Fianchetto without c4 |
| 45. M Munoz Pantoja vs I Semjonovs |
| 0-1 | 31 | 2019 | Tal Memorial Blitz | B84 Sicilian, Scheveningen |
| 46. I Semjonovs vs T Hirneise |
| ½-½ | 30 | 2019 | Riga Tech Open-A | C95 Ruy Lopez, Closed, Breyer |
| 47. C Bauer vs I Semjonovs |
| ½-½ | 57 | 2019 | Riga Tech Open-A | D70 Neo-Grunfeld Defense |
| 48. J Salomon vs I Semjonovs |
| 1-0 | 48 | 2019 | Riga Tech Open-A | A58 Benko Gambit |
| 49. A Esipenko vs I Semjonovs |
| ½-½ | 69 | 2019 | European Blitz | D85 Grunfeld |
| 50. I Semjonovs vs A Esipenko |
| 0-1 | 31 | 2019 | European Blitz | B18 Caro-Kann, Classical |
Kibitzing
