| 2 August | Scottish 6-Days TrailO, Cambus o'May (on S6D 'rest day'). Information here |
| 27 August | TrailO at White Rose Weekend. Information on www.whiteroseweekend.org.uk |
| 23-24 September | 4th ECTO event, Uppsala, Sweden. Information here and here |
| 29 Sept. - 1 Oct. | Nordic TrailO Match, Nokia, near Tampere, Finland |
| 28-29 October | 5th ECTO event, Slovakia. Preliminary information here |
| 2018 | |
| 27 April - 1 May | European TrailO Championships, Bratislava, Slovakia. Bulletin 1 here |
| 4-11 August | World TrailO Championships, Latvia. Bulletin 1 here |
| 2019 | |
| 23-29 June | World TrailO Championships, Idanha-a-Nova, Portugal. Bulletin 1 here |
| 2020 | |
| ? | World TrailO Championships, Hong Kong |