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Jack's Winter Backyard Ultra 6,7 km 2027
RaceBackyard ultra

Jack's Winter Backyard Ultra 6,7 km 2027

13 Feb 2027· 09:00KostinbrodTONITAZET Ltd.

Backyard ultra: a 6.6 km lap every hour on the hour. Miss the next start and you are out; the last one on the course wins. No finish and no target time — the goal is how many laps.

6.6 km with 139 m of climbing, around Kostinbrod, on 13.02.2027. The overall limit is 1 hours. The route has 1 marked points, 1 of them with a cut-off.

Distance
6.7 km
Climb
+150 m
Plan
—
Final cutoff
1 hour
Plan
Not saved
Revision
—
Watch
Not sent
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Lap plan

A 6.6 km lap every hour on the hour. The faster the lap, the longer the rest before the bell — but laps slow down as you tire, and the rest gets shorter.

Laps
24
Kilometres
157.7 km
Time
24 h
Last within the hour
24

From lap 14 the rest is under 5 minutes — that is usually where it ends. Consider an easier start.

LapStartTimePaceRestEatTotal
109:0045:006:51/km15:0045 g6.6 km
210:0045:276:55/km14:3345 g13.1 km
311:0045:546:59/km14:0646 g19.7 km
412:0046:227:03/km13:38meal26.3 km
513:0046:507:08/km13:1047 g32.8 km
614:0047:187:12/km12:4247 g39.4 km
715:0047:467:16/km12:1448 g46 km
816:0048:157:21/km11:45meal52.6 km
917:0048:447:25/km11:1649 g59.1 km
1018:0049:137:30/km10:4749 g65.7 km
1119:0049:427:34/km10:1850 g72.3 km
1220:0054:138:15/km5:4754 g78.8 km
1321:0054:468:20/km5:1455 g85.4 km
1422:0055:198:25/km4:4155 g92 km
1523:0055:528:30/km4:0856 g98.5 km
1600:0056:258:35/km3:3556 g105.1 km
1701:0056:598:41/km3:0157 g111.7 km
1802:0057:338:46/km2:2758 g118.2 km
1903:0058:088:51/km1:5258 g124.8 km
2004:0058:438:56/km1:1759 g131.4 km
2105:0059:189:02/km0:4259 g137.9 km
2206:0055:278:27/km4:3355 g144.5 km
2307:0056:018:32/km3:5956 g151.1 km
2408:0056:348:37/km3:2657 g157.7 km

“Eat” — carbs for the next lap (60 g/h). “meal” — a bigger one about every 4 hours, when the rest is 8 minutes or more.

The lap by kilometre

How to spread the lap — by gradient, like the other plans: slower up, faster down.

To kmTimePaceSince the bell
1 km6:456:45/km6:45
2 km6:566:56/km13:41
3 km6:546:54/km20:36
4 km7:047:04/km27:40
5 km7:067:06/km34:46
6 km5:585:58/km40:44
6.6 km4:167:37/km45:00

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How it went

Upload the GPX of the run — from the watch or Strava. Laps are counted by the hours from the start of the recording; each lap time is compared with the plan.