Deutsch 
| Position | Stürmer |
| Nationalität |  |
| Geburtsort | Lausanne, SUI |
| Größe | 183 cm |
| Gewicht | 88 kg |
| Geburtsdatum | 11.10.1998 |
| Jugendmannschaft | Lausanne HC |
| Schläger | Links |
| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2010-2011 | HC Yverdon-les-bains U16 | Swiss U16-Top | 7 | 10 | 5 | 15 | 2 | | | ||||||
| Suisse Romande Béliers | QC Int PW | 6 | 4 | 0 | 4 | 2 | | | |||||||
| 2011-2012 | Lausanne HC U16 | Swiss U16-Elit | 25 | 3 | 6 | 9 | 0 | | | Playoffs QC | 2 | 1 | 0 | 1 | 0 |
| Forward-Morges HC U15 | Swiss U16-Top | 5 | 8 | 6 | 14 | 0 | | | |||||||
| 2012-2013 | Lausanne HC U16 | Swiss U16-Elit | 27 | 11 | 17 | 28 | 24 | | | Playoffs QC | 2 | 1 | 0 | 1 | 2 |
| Lausanne HC U18 | Swiss U18-Elit | 0 | 0 | 0 | 0 | 0 | | | Relegation | 3 | 0 | 0 | 0 | 0 | |
| Lausanne HC II U17 | Swiss U18-Top | 7 | 1 | 1 | 2 | 2 | | | |||||||
| 2013-2014 | Lausanne HC U18 | Swiss U18-Elit | 15 | 2 | 5 | 7 | 10 | | | Playoffs | 10 | 0 | 2 | 2 | 10 |
| Lausanne HC II U17 | Swiss U18-Top | 3 | 1 | 1 | 2 | 10 | | | |||||||
| 2014-2015 | HC Fribourg-Gottéron U18 | Swiss U18-Elit | 27 | 15 | 21 | 36 | 20 | | | Playoffs | 8 | 4 | 5 | 9 | 8 |
| HC Fribourg-Gottéron U21 | Swiss U21-Elit | 6 | 0 | 1 | 1 | 0 | | | Playoffs | 1 | 0 | 0 | 0 | 0 | |
| 2015-2016 | Genève Future Hockey U21 | Swiss U21-Elit | 24 | 8 | 9 | 17 | 47 | | | Playoffs | 3 | 3 | 2 | 5 | 6 |
| Switzerland U18 (all) | International-Jr | 7 | 2 | 0 | 2 | 0 | | | |||||||
| 2016-2017 | Genève Future Hockey U21 | Swiss U21-Elit | 37 | 21 | 30 | 51 | 54 | | | Playoffs | 6 | 4 | 4 | 8 | 6 |
| Genève-Servette HC | NL | 8 | 0 | 0 | 0 | 2 | | | |||||||
| Genève-Servette HC | Swiss Cup | 2 | 0 | 0 | 0 | 0 | | | |||||||
| HC Ajoie | SL | 2 | 0 | 0 | 0 | 0 | | | |||||||
| Switzerland U19 (all) | International-Jr | 4 | 0 | 0 | 0 | 0 | | | |||||||
| 2017-2018 | Genève Future Hockey U21 | Swiss U21-Elit | 13 | 5 | 12 | 17 | 10 | | | Playoffs | 9 | 6 | 2 | 8 | 12 |
| Genève-Servette HC | NL | 19 | 2 | 0 | 2 | 0 | | | |||||||
| Genève-Servette HC | Swiss Cup | 2 | 0 | 0 | 0 | 2 | | | |||||||
| HC Ajoie | SL | 5 | 1 | 0 | 1 | 0 | | | |||||||
| Switzerland U20 | WJC-20 | 5 | 0 | 4 | 4 | 0 | | | |||||||
| Switzerland U20 (all) | International-Jr | 18 | 2 | 7 | 9 | 14 | | | |||||||
| 2018-2019 | Genève-Servette HC | NL | 30 | 1 | 3 | 4 | 2 | | | Playoffs | 6 | 0 | 0 | 0 | 2 |
| Genève-Servette HC | Swiss Cup | 1 | 0 | 0 | 0 | 0 | | | |||||||
| HC Sierre | MyHL | 17 | 4 | 10 | 14 | 22 | | | |||||||
| HC Sierre | Swiss Cup Q | 2 | 1 | 0 | 1 | 0 | | | |||||||
| 2019-2020 | Genève-Servette HC | NL | 44 | 2 | 6 | 8 | 16 | | | ||||||
| HC Sierre | SL | 1 | 1 | 0 | 1 | 0 | | | |||||||
| Genève-Servette HC | Swiss Cup | 2 | 0 | 1 | 1 | 0 | | | |||||||
| Switzerland | Deutschland Cup | 3 | 0 | 0 | 0 | 2 | | | |||||||
| Switzerland (all) | International | 3 | 0 | 0 | 0 | 2 | | | |||||||
| 2020-2021 | Lausanne HC | NL | 12 | 0 | 2 | 2 | 4 | | | ||||||
| Lausanne HC | Swiss Cup | 3 | 1 | 0 | 1 | 0 | | | |||||||
| 2021-2022 | Lausanne HC | NL | 37 | 6 | 2 | 8 | 4 | | | Playoffs | 6 | 0 | 0 | 0 | 0 |
| Lausanne HC | Champions HL | 5 | 0 | 0 | 0 | 0 | | | |||||||
| HC Sierre | SL | 12 | 2 | 5 | 7 | 6 | | | Playoffs | 2 | 0 | 1 | 1 | 2 | |
| 2022-2023 | Lausanne HC | NL | 22 | 3 | 3 | 6 | 4 | | | ||||||
| EHC Biel-Bienne | NL | 13 | 2 | 2 | 4 | 0 | | | |||||||
| 2023-2024 | Genève-Servette HC | NL | 35 | 1 | 4 | 5 | 11 | | | Playoffs | 2 | 0 | 0 | 0 | 0 |
| Genève-Servette HC | Champions HL | 7 | 1 | 0 | 1 | 2 | | | |||||||
| HC La Chaux-de-Fonds | SL | 1 | 1 | 0 | 1 | 0 | | | |||||||
| 2024-2025 | Genève-Servette HC | NL | 19 | 0 | 1 | 1 | 2 | | | ||||||
| Genève-Servette HC | Champions HL | 7 | 0 | 0 | 0 | 0 | | | |||||||
| HC Sierre | SL | 14 | 3 | 4 | 7 | 6 | | | Playoffs | 5 | 0 | 2 | 2 | 2 | |
| 2025-2026 | HC Sierre | SL | 21 | 5 | 7 | 12 | 4 | | | ||||||
| HC Sierre | National Cup | 2 | 1 | 1 | 2 | 0 | | |
Guillaume Maillard ist ein vielseitiger Schweizer Stürmer, der sowohl als Center als auch als Right Wing eingesetzt werden kann. Mit 183 cm Größe und 88 kg Gewicht kombiniert er eine solide physische Präsenz mit guter Beweglichkeit. Er stammt aus der Nachwuchsabteilung des Lausanne HC und bringt ein starkes Spielverständnis sowie Einsatzfreude in beiden Zonen mit. Maillard schießt links und ist bekannt für sein engagiertes Forechecking sowie seine Fähigkeit, Torchancen zu kreieren.
