FUNCHAL (Portugal), 29 July 2013 – The event scheduled in Macaé City, Brazil, on 4th August weekend has been cancelled. The updated calendar is as follows:
2013 FIM MX3 World Championship Calendar
| Date | Venue | Country |
| 31 March | Valkenswaard | Netherlands |
| 05 May | Troyan | Bulgaria |
| 26 May | Belgorod-Dnestrovskiy | Ukraine |
| 09 June | Orehova Vas | Slovenia |
| 16 June | Maggiora | Italy |
| 21 July | Chernivtsi | Ukraine |
| 25 August | Matterley Basin | Great Britain |
| 01 September | Pacov | Czech Republic |
| 08 September | Senkvice | Slovakia |