Deutsch 
| Position | Stürmer |
| Nationalität |  |
| Geburtsort | Jyväskylä, FIN |
| Größe | 194 cm |
| Gewicht | 84 kg |
| Geburtsdatum | 18.08.1995 |
| Jugendmannschaft | Diskos |
| Schusshand/Fanghand | Links |
| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2010-2011 | Diskos U16 | U16 I-divisioona Q | 7 | 3 | 4 | 7 | 4 | | | ||||||
| Diskos U16 | U16 II-divisioona | 13 | 11 | 12 | 23 | 4 | | | |||||||
| Diskos U18 | U18 I-divisioona | 15 | 3 | 3 | 6 | 2 | | | |||||||
| 2011-2012 | JYP U17 | U17 SM-sarja Q | 10 | 4 | 9 | 13 | 6 | | | ||||||
| JYP U17 | U17 SM-sarja | 26 | 6 | 13 | 19 | 8 | | | Playoffs | 4 | 3 | 2 | 5 | 0 | |
| 2012-2013 | JYP U18 | U18 SM-sarja | 11 | 1 | 1 | 2 | 0 | | | ||||||
| Diskos U18 | U18 Mestis | 30 | 12 | 25 | 37 | 22 | | | |||||||
| 2013-2014 | JYP U20 | U20 SM-sarja | 37 | 12 | 13 | 25 | 36 | | | ||||||
| Diskos U20 | U20 Mestis | 13 | 7 | 7 | 14 | 4 | | | |||||||
| 2014-2015 | JYP U20 | U20 SM-sarja | 39 | 14 | 12 | 26 | 22 | | | ||||||
| 2015-2016 | JYP U20 | U20 SM-sarja | 7 | 5 | 2 | 7 | 0 | | | ||||||
| JYP-Akatemia | Mestis | 36 | 6 | 12 | 18 | 6 | | | Relegation | 4 | 0 | 1 | 1 | 2 | |
| D-Kiekko | Suomi-sarja | 1 | 0 | 0 | 0 | 0 | | | |||||||
| 2016-2017 | JYP-Akatemia | Mestis | 46 | 5 | 17 | 22 | 26 | | | Relegation | 8 | 7 | 2 | 9 | 6 |
| 2017-2018 | JYP | Liiga | 1 | 0 | 0 | 0 | 2 | | | ||||||
| KeuPa HT | Mestis | 46 | 13 | 11 | 24 | 28 | | | Playoffs | 12 | 2 | 4 | 6 | 18 | |
| JYP | Champions HL | 1 | 0 | 0 | 0 | 2 | | | |||||||
| KeuPa HT | Suomen Cup | 3 | 1 | 2 | 3 | 4 | | | |||||||
| 2018-2019 | Kiekko-Vantaa | Mestis | 15 | 0 | 2 | 2 | 2 | | | ||||||
| Kiekko-Vantaa | Suomen Cup | 2 | 0 | 2 | 2 | 0 | | | |||||||
| 2019-2020 | KeuPa HT | Mestis | 36 | 3 | 15 | 18 | 12 | | | ||||||
| KeuPa HT | Suomen Cup | 2 | 0 | 1 | 1 | 0 | | | |||||||
| 2020-2021 | Fehérvár Hockey Academy 19 | Erste Liga | 36 | 14 | 10 | 24 | 20 | | | ||||||
| 2021-2022 | D-Kiekko | Suomi-sarja | 4 | 2 | 4 | 6 | 2 | | | ||||||
| HK Martin | Slovakia2 | 42 | 21 | 21 | 42 | 63 | | | Playoffs | 18 | 4 | 4 | 8 | 43 | |
| 2022-2023 | HK Martin | Slovakia2 | 28 | 8 | 4 | 12 | 19 | | | ||||||
| Hannover Indians | Germany3 | 16 | 6 | 11 | 17 | 6 | | | Playoffs | 8 | 1 | 4 | 5 | 6 | |
| 2023-2024 | KH Torun | Poland | 34 | 9 | 10 | 19 | 16 | | | Playoffs | 6 | 0 | 2 | 2 | 6 |
| 2024-2025 | Gladiators HT | II-divisioona | 5 | 4 | 5 | 9 | 0 | | |
Riku Tiainen ist ein finnischer Eishockeyspieler.
