Calendar of Events - National Leagues
November 2012
| Date | Name | Format | Club | |
| 18/11/12 | D&W Winter Series 2/6 - West Sheffield area | MBO Score | Dark & White | Details |
| 25/11/12 | Organic Adventure Elland | MBO Score | Organic Adventure | Details |
December 2012
| Date | Name | Format | Club | |
| 09/12/12 | D&W Winter Series 3/6 - Hope Valley area/Dark Peak | MBO Score | Dark & White | Details |
| 16/12/12 | Organic Adventure Brighouse | MBO Score | Organic Adventure | Details |
| 22/12/12 | The Military Challenge | MTBO | BAOC | Details |
January 2013
| Date | Name | Format | Club | |
| 13/01/13 | D&W Winter Series 4/6 - Bakewell/Central Peak District | MBO Score | Dark & White | Details |
| 19/01/13 | Organic Adventure Outlane | MBO Score | Organic Adventure | Details |
February 2013
| Date | Name | Format | Club | |
| 17/02/13 | Organic Adventure Honley | MBO Score | Organic Adventure | Details |
March 2013
| Date | Name | Format | Club | |
| 03/03/13 | Re-Scheduled - D&W Winter Series 5/6 - Calver/Northern White Peak | MBO Score | Dark & White | Details |
| 17/03/13 | Organic Adventure Upper Hopton | MBO Score | Organic Adventure | Details |
| 17/03/13 | D&W Winter Series 6/6 - Macclesfield Forest/NW Peak District | MBO Score | Dark & White | Details |
| 30/03/13 | Aberfoyle SMBO Spring Series | MBO Score | Details |
April 2013
| Date | Name | Format | Club | |
| 14/04/13 | Allendale Moors | MBO Score | NEMBOS | Details |
| 20/04/13 | Cropton Forest | MBO Score | NYMBO | Details |
| 20/04/13 | Mugdock Park - Spring Series | MBO Score | Details | |
| 21/04/13 | Organic Trial, Penistone (Yorkshire) Summer 1 of 10 | MBO Score | Organic Adventure | Details |
| 28/04/13 | Organic Trial, Ashover (S Yorkshire, Derbyshire) Summer 2 of 10 | MBO Score | Organic Adventure | Details |
May 2013
| Date | Name | Format | Club | |
| 12/05/13 | Swaledale North | MBO Score | NEMBOS | Details |
| 19/05/13 | Organic Trial, Mytholmroyd (Yorkshire) Summer 3 of 10 | MBO Score | Organic Adventure | Details |
| 25/05/13 | Ingleton | MBO Score | NYMBO | Details |
| 26/05/13 | Crieff/ Strathearn Perthshire Spring Series | MBO Score | SMBO | Details |
June 2013
| Date | Name | Format | Club | |
| 02/06/13 | Longridge Fell MTBO | MTBO | Pendle Forest Orienteers | Details |
| 02/06/13 | Organic Trial, Nether Langwith (Yorkshire) Summer 4 of 10 | MBO Score | Organic Adventure | Details |
| 09/06/13 | Kildale Moors | MBO Score | NEMBOS | Details |
| 15/06/13 | British Middle Distance Championships | MTBO | MBO South | Details |
| 22/06/13 | Hambleton Hills | MBO Score | NYMBO | Details |
| 22/06/13 | Organic Trial, Halifax (Yorkshire) Summer 5 of 10 | MBO Score | Organic Adventure | Details |
| 30/06/13 | Organic Trial, Dinnington (S Yorkshire) Summer 6 of 10 | MBO Score | Organic Adventure | Details |
July 2013
| Date | Name | Format | Club | |
| 13/07/13 | Penistone Hill | MTBO | Details | |
| 21/07/13 | Organic Trial, Denbydale (Yorkshire) Summer 7 of 10 | MBO Score | Organic Adventure | Details |
| 27/07/13 | Swaledale | MBO Score | NYMBO | Details |
| 28/07/13 | Organic Trial, Rotherham (S Yorkshire) Summer 8 of 10 | Bike O | Organic Adventure | Details |
August 2013
| Date | Name | Format | Club | |
| 11/08/13 | Hamsterley Forest | MBO Score | NEMBOS | Details |
| 18/08/13 | Organic Trial, Dovestones (Yorkshire) Summer 9 of 10 | Bike O | Organic Adventure | Details |
| 24/08/13 | Malham Show | MBO Score | NYMBO | Details |
| 25/08/13 | Organic Trial, Doncaster (S Yorkshire) Summer 10 of 10 | MBO Score | Organic Adventure | Details |
| 26/08/13 | Ampleforth, Howardian Hills | MBO Score | NYMBO | Details |
September 2013
| Date | Name | Format | Club | |
| 08/09/13 | Wark Forest | MBO Score | NEMBOS | Details |
| 21/09/13 | Dalby Forest | MBO Score | NYMBO | Details |
| 28/09/13 | Lakeland MTBO Weekend - Grizedale Forest | MTBO | West Coast MTB | Details |
| 29/09/13 | Lakeland MTBO Weekend - Whinlatter Forest | MTBO | West Coast MTB | Details |
October 2013
| Date | Name | Format | Club | |
| 05/10/13 | Pocklington - New Date - Postponed from 23rd March | MBO Score | NYMBO | Details |
| 19/10/13 | Masham Moors | MBO Score | NYMBO | Details |
| 20/10/13 | Bishopwood & Wheldrake | MTBO | NYMBO | Details |
November 2013
| Date | Name | Format | Club | |
| 09/11/13 | South Yorkshire mtbo | MTBO | Details |
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