| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 401. S Nyysti vs T Sammalvuo |
| ½-½ | 51 | 2018 | Finnish Championship | B48 Sicilian, Taimanov Variation |
| 402. T Sammalvuo vs P Koykka |
| 0-1 | 44 | 2018 | Finnish Championship | A88 Dutch, Leningrad, Main Variation with c6 |
| 403. V Sipila vs T Sammalvuo |
| ½-½ | 55 | 2018 | Finnish Championship | E25 Nimzo-Indian, Samisch |
| 404. T Sammalvuo vs T Luukkonen |
| 1-0 | 43 | 2018 | Finnish Championship | A15 English |
| 405. M Agopov vs T Sammalvuo |
| 1-0 | 67 | 2018 | Finnish Championship | A57 Benko Gambit |
| 406. T Sammalvuo vs T Keinanen |
| 0-1 | 28 | 2018 | Finnish Championship | D06 Queen's Gambit Declined |
| 407. T Sammalvuo vs M Karttunen |
| ½-½ | 37 | 2018 | Finnish Championship | E97 King's Indian |
| 408. K Niemi vs T Sammalvuo |
| ½-½ | 59 | 2018 | Finnish Championship | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 409. T Sammalvuo vs B Lindberg |
| ½-½ | 67 | 2018 | SS Manhem GM | E15 Queen's Indian |
| 410. Rozentalis vs T Sammalvuo |
| 1-0 | 39 | 2018 | SS Manhem GM | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 411. T Sammalvuo vs S Schneider |
| 1-0 | 74 | 2018 | SS Manhem GM | E11 Bogo-Indian Defense |
| 412. L Johansson vs T Sammalvuo |
| ½-½ | 44 | 2018 | SS Manhem GM | E20 Nimzo-Indian |
| 413. T Sammalvuo vs S Brynell |
| ½-½ | 55 | 2018 | SS Manhem GM | E17 Queen's Indian |
| 414. T Sammalvuo vs P Golubka |
| 1-0 | 63 | 2018 | SS Manhem GM | E40 Nimzo-Indian, 4.e3 |
| 415. J Christiansen vs T Sammalvuo |
| 1-0 | 53 | 2018 | SS Manhem GM | E39 Nimzo-Indian, Classical, Pirc Variation |
| 416. T Sammalvuo vs M Vestby-Ellingsen |
| ½-½ | 10 | 2018 | SS Manhem GM | A37 English, Symmetrical |
| 417. O Gritsak vs T Sammalvuo |
| ½-½ | 6 | 2018 | SS Manhem GM | A15 English |
| 418. Y Rantanen vs T Sammalvuo |
| 0-1 | 39 | 2018 | TCh-FIN -19 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 419. Mamedyarov vs T Sammalvuo |
| 1-0 | 41 | 2018 | European Club Cup | E39 Nimzo-Indian, Classical, Pirc Variation |
| 420. W Hewitt vs T Sammalvuo |
| ½-½ | 43 | 2018 | European Club Cup | C45 Scotch Game |
| 421. T Sammalvuo vs D Gorodetzky |
| ½-½ | 118 | 2018 | European Club Cup | D44 Queen's Gambit Declined Semi-Slav |
| 422. T Sammalvuo vs B Thorfinnsson |
 | 1-0 | 39 | 2018 | European Club Cup | D44 Queen's Gambit Declined Semi-Slav |
| 423. A Jakubiec vs T Sammalvuo |
| 1-0 | 55 | 2018 | European Club Cup | C55 Two Knights Defense |
| 424. T Sammalvuo vs L Johansson |
| 0-1 | 56 | 2018 | TCh-SWE Elitserien | E17 Queen's Indian |
| 425. A Korobov vs T Sammalvuo |
| 1-0 | 43 | 2021 | European Club Cup | E12 Queen's Indian |
Kibitzing
