The 2018 season starts in Melbourne on March 25 ahead of a year that will see a record-equalling total of 21 races held. World champion Lewis Hamilton will aim for a fifth world title and a fourth in five years with Mercedes-GP, but he will likely face stiff opposition again from Ferrari's Sebastian Vettel, with the Red Bull Racing cars of Max Verstappen and Daniel Ricciardo looking to challenge after a strong end to 2017. <strong>___________________</strong> <strong>Read more</strong> <strong>__________________</strong> <strong>March 25</strong> Australian Grand Prix, 10.10am <strong>April 8</strong> Bahrain Grand Prix, 7.10pm <strong>April 15</strong> Chinese Grand Prix, 10.10am <strong>April 29</strong> Azerbaijan Grand Prix, 4.10pm <strong>May 13</strong> Spanish Grand Prix, 5.10pm <strong>May 27</strong> Monaco Grand Prix, 5.10pm <strong>June 10</strong> Canadian Grand Prix, 10.10pm <strong>June 24</strong> French Grand Prix, 6.10pm <strong>July 1</strong> Austrian Grand Prix, 5.10pm <strong>July 8</strong> British Grand Prix, 5.10pm <strong>July 22</strong> German Grand Prix, 5.10pm <strong>July 29</strong> Hungarian Grand Prix, 5.10pm <strong>August 26</strong> Belgian Grand Prix, 5.10pm <strong>September 2</strong> Italian Grand Prix, 5.10pm <strong>September 16</strong> Singapore Grand Prix, 4.10pm <strong>September 30</strong> Russian Grand Prix, 4.10pm <strong>October 7</strong> Japanese Grand Prix, 9.10am <strong>October 21</strong> United States Grand Prix, 10.10pm <strong>October 28</strong> Mexican Grand Prix, 11.10pm <strong>November 11</strong> Brazilian Grand Prix, 9.10pm <strong>November 25</strong> Abu Dhabi Grand Prix, 5.10pm