SøenX is a 12 hour ultra race, where you run laps on a 1.8 km track around Lemvig Sø until your legs fall off or you hit the time cap. I ran for 12 hours minus 1 hour and 20 minutes of planned breaks (and 40 minutes of … well, short stops to refill juice, water and go to the toilet).
I decided to break the race into five rounds of: Run 20 km, rest 20 minutes and eat. What ever time remaining after 100 km, I would just run as “fast” as I can with what I have left in the tank.
Morning: (4:15) I had to drive to the location for about two hours, so to avoid a high blood sugar before race start, I went with a HUEL black shake with 20 g carbs.
Pre race: 40 minutes before start I had 100 gram oatmeal with a banana + 3 IE Fiasp.
Doing the race
| Distance (km) | Food | IE Fiasp | |
|---|---|---|---|
| 20 | HUEL H&S 100 gram (pasta) + 33 cl Faxekondi | 2 | Taking insulin here was a mistake, as my BS was already dropping and I didn’t eat much. |
| - | 1 liter of juice | Compensated for the extra insulin by drinking more juice. | |
| 30 | Bun with butter and Nutella | 0 | |
| - | 0.5 liter of juice | ||
| 40 | HUEL H&S 100 gram (pasta) + 33 cl Faxekondi | 0 | Around 11:30 I started feeling better as my blood sugar started raising back up to 8-9. |
| - | 0.5 liter of juice | ||
| 50 | Bun with butter and Nutella | 0 | |
| - | 0.5 liter of juice | ||
| 60 | HUEL H&S 100 gram (pasta) + 33 cl Faxekondi | 0 | |
| - | 0.5 - 1 liter of juice | ||
| 70 | Bun with butter and Nutella | 0 | |
| - | 0.5 - 1 liter of juice | ||
| 80 | HUEL H&S 100 gram (pasta) + 33 cl Faxekondi | 0 | |
| - | 0.5 - 1 liter of juice | The last 20-15 ish km, the blood sugar was high and I felt great, so I decided I didn’t need more food other than a bit of juice now and then for the remaining of the race. | |
| 90-100 | 0.5 - 1 liter of juice | 0 |
After the race I had a sandwich + chips + faxekondi
The race started at 7 and ended at 19.

The final result is available on Strava and Garmin
| Date | Low | Normal | High | Min | Max | Average | StDev | 25% | Median | 75% | Coefficient of Variation | Carbs (garm) | Slow insulin (Semglee) | Fast Insuline (Fiasp) | Calories burned (Active) | Calories Total | Distance (km) | Elevation (meter) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| lørdag 07/27/2024 | 4% | 62% | 33% | 3,5 | 19,8 | 9,1 | 3,5 | 6,2 | 8,9 | 11,1 | 39,3 | 1279 | 10 | 5 | 7245 | 9227 | 105,9 | 546 |
The carbs column includes breakfast and dinner in the evening.