A list of the ultra running races taking place in Scotland in 2021. I will update as I receive more information and depending on Covid restrictions. Many races were cancelled in 2020 and organisers may have offered a rollover entry for 2021.
There will be reduced race entries for a lot of events in 2021, so keep an eye on early sign ups.
| Date | Race | Distance | Notes |
| Jan | Tyndrum 24hr | Laps of 8km; 6h & 12hr too | CANCELLED |
| Feb | Falkirk 8hr ultra | 8 hour solo or relay | CANCELLED |
| Mar | Falkirk 50k | 50k | TBC |
| Mar | Self Transcendence | 50k and 100k | TBC |
| Mar 13 | Deeside Way Ultra (was D33) | 33 miles | CANCELLED |
| April | Glen Lyon Ultra | 31.5 miles | Events to resume in August 2021 |
| Apr | Highland Fling | 53 miles | CANCELLED |
| May 1 | Ultra Scotland 50 | 50 miles | Entries open |
| May 1 | Ultra Scotland 100 | 100 miles | Entries open |
| May 8 | Formatine & Buchan Railway 12 Hour Ultra | 12 hours/ laps | Entries open |
| May 8 | Kintyre Way Ultra | 32 miles; solo & relay | Entries open Jan 2 |
| May 8 to 9 | Ultra X 50 Scotland and Ultra X 125 Scotland | 50km and 125km | |
| May | Selkrik Ultra | 42k and 22k | Does not appear to be on in 2021 |
| May | Cateran Ultra | 55 miles | TBC |
| May 20 to 22 | LochNess360° Ultra Marathon | 150km (changed route) | Entries open |
| May 28 to 30 | The Highland 180 Race | 180 miles | Entries open |
| May 29 to 30 | West Highland Way Challenge Race | 96 miles (Fort William to Milngavie) | Entries open |
| May 29 to 30 | West Highland Way & Ben Nevis Race | 106 miles | Entries open |
| June 5 to 6 | NEW Blair Castle Trail Weekend | 29km and 58km | Plus 5km & 10km |
| June 5 to 6 | Glen Lyon Ultra | 48km | |
| June | Lochalsh 30 | 30 miles | 2021 date TBC |
| June 12 | Moray Coastal Trail 50 | 50k | Entries open |
| June 19/20 | Saltire 24 | Laps. 12hr & 24hr | Hopes to go ahead |
| June 19/20 | Ultra Trail Scotland | 45km & 26km | CANCELLED. Returns 2022 |
| Jun 19 | West Highland Way Race | 95 miles | Entries decided already |
| June 26/27 | Angus Coastal Ultra | 80 miles | Take 1 or 2 days; solo or team |
| June 26 to 27 | Kilmarnock 24 & 12 | 24 & 12 hours | TBC |
| June | Lairig Ghru Race | 42.7k | Date TBC |
| July 10 | St Cuthbert’s Way Ultra | 100k & 45 miles | Entries open |
| July 3 | Great Glen Ultra | 71 miles | Entries open |
| July 31 | John Lucas Memorial Round Strathaven 50 | 50 miles & relay | Entries open |
| Jul 16 to 18 | Run the Blades | 50k (& shorter) | Entries open early 2021 |
| Jul 24 | Clydestride | 40 miles | Entries not yet open/new website to launch |
| August 1 to 8 | Cape Wrath Ultra | 400km; 8 days | There are a few places still available (March 2021) |
| Aug | Devil o’ the Highlands | 42 miles | TBC |
| Aug 14 | Ultra GB Race Across Scotland | 215 miles | Register interest |
| Aug 14 | Scurry2Bridges Run | 161km relay for teams of four | |
| Aug 28 | Drovers Ultra | 55km, 75km, 90km | |
| Aug 28 | Speyside Way Race | 37 miles and 100km | |
| Sept 3 to 5 | Glenmore 24 & 12 | 24 and 12 hours | TBC |
| Sep 5 | Tiree Ultra | 35 miles | Entries open |
| Sept | River Ayr Way Ultra Marathon | 40 miles | TBC |
| Sept 18 – 19 | Skyline Scotland races | Various races | Entries open |
| Sept 18 | Ring of Steall Sky Race | 29km | Entries open |
| Sept 19 | Glen Coe Skyline | 52km | Entries open |
| Sept 19 | Ben Nevis Ultra | 52km | Entries open |
| Sept 25 | Ochil Ultra | 30 & 50 miles | Entries open |
| Sept 25 to 26 | Skye Trail Ultra | 74 miles | |
| Oct 2 | Moray Way 100 Mile | 100 miles | Entries open |
| Oct 2 | Dunoon Ultra | 55km & relay | TBC |
| Oct | NRG24 | 12 and 24 hour events at Nevis Range, Fort William | TBC |
| Oct 2 to 3 | Ultra Tour of Arran | 60 miles over 2 days | More entries available |
| Oct 9 | Bennachie Hill Ultra | 31 miles | Entries to open |
| Oct 9 | Glasgow to Edinburgh Ultra | 56 miles | Register interest |
| Oct 9 | John Muir Way Ultra | 50k and 25k relay | Date moved from April. |
| Oct 17 | Ultra Tour Edinburgh | 55km | Entries open |
| Oct 21 | The Highland Ultra | 125km | New event |
| Oct 25 | Jedburgh 3 Peaks | 38 miles | TBC |
| Nov 6 | Glen Ogle 33 Ultra | 33 miles | |
| Nov | SL Super Race Series – 6 Hour Ultra Run | As far as possible | TBC |
| Nov | Tweed Valley Ultra | 50k and 65k | TBC |
| Nov | Foxtrail Nocturnal | 5km loop | TBC |
| Nov 13 | Dava Way 50k | 50km | |
| Work it out! | Mission 24 | Solve the clues | TBC |
| Anytime | Ramsay’s Round | 56 miles |