Kagaspa Trail Endurance 100 - KAGASPA 50K 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 7 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions
'%20d='M128.83%2011.31h142.21v60.44H128.83z'%3e%3c/path%3e%3cpath%20d='M0%2071.75V24.24h13.11v36h16.22v11.51ZM31.92%2071.75V24.24H45v47.51ZM76.64%2071.75H62.45L47.12%2024.24h14.06l.7%202.6%203.42%2012C67%2044.83%2068%2049%2069.16%2055l.38%202%20.38-2c1.21-6%202.16-10.13%203.87-16.08l3.42-12%20.69-2.6H92ZM93.86%2035.77V24.24h31.67v11.53Zm0%2036V42.23h31.67v11.53H107v6.46h18.56v11.53Z'%3e%3c/path%3e%3cpath%20d='m56.49%2017.88%201.45-2.85%203.39-6.66%203.46%206.44%205.99%2011.12%205.91-10.53h49.52v-4H74.48l-1.77%203.15-1.86%203.32-1.73-3.2L61.23%200l-7.05%2013.88H31.94v4H56.49z'%3e%3c/path%3e%3cg%20fill='%23fff'%3e%3cpath%20d='M146.79%2066.48h-7.62V25.85h-7.68v-8.53h23.09v8.53h-7.79ZM191.86%2066.48h-9.28l-15-25.73h8.84a8.73%208.73%200%200%200%202.85-.46%206.26%206.26%200%200%200%202.34-1.38%206.41%206.41%200%200%200%201.58-2.33%209%209%200%200%200%20.58-3.38%208.17%208.17%200%200%200-.61-3.28%206.91%206.91%200%200%200-1.6-2.3%206.72%206.72%200%200%200-2.32-1.38%208.73%208.73%200%200%200-2.82-.46h-10.69v40.7h-7.67V17.25h18.5a22.43%2022.43%200%200%201%205.3.62%2010.85%2010.85%200%200%201%204.75%202.66%2016%2016%200%200%201%203.59%205.38%2017.06%2017.06%200%200%201%201.28%206.57%2020.77%2020.77%200%200%201-1%206.37%2015.85%2015.85%200%200%201-2.88%205.38%2010.94%2010.94%200%200%201-3.2%202.66%2017.2%2017.2%200%200%201-3.7%201.34ZM231.19%2017.32v49.16h-7.68V33.53l-19.06%2033h-9.22l29-49.16ZM235.06%2017.25h7.56v49.23h-7.56ZM246.1%2017.18h7.68V58h12.59v8.47H246.1Z'%3e%3c/path%3e%3c/g%3e%3c/svg%3e){kind=small}
Cut-off times and crew - Kagaspa Trail Endurance 100 - KAGASPA 50K · 2026
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | AS1: MT. KARIYASU/刈安山km 8.6 | AS3: KUTANI DAM/九谷ダムkm 16.4 | AS4: KUTANI WATER PARK/九谷親水公園km 21.2 | AS8: IMADATE IOS SQUARE/今立あいおす広場km 30.0 | AS9: TAKIGAHARA/滝ケ原km 41.6 | AS10: TONOO/搭尾km 49.8 | FINISH: YAMANAKA-ZA/山中座km 56.8 |
|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available |
| Brand products | available | available | unavailable | available | unavailable | unavailable | available |
| Hot meal | unavailable | unavailable | available | unavailable | available | available | unavailable |
Elevation profile
The course and its aid stations
Kagaspa Trail Endurance 100 - KAGASPA 50K: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 9h53 to 6h10, and the aid-station stop budget from 0h59 to 0h23. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 9h53 | 0h59 | 2 | 593 g | 6.9 L | 4,942 mg | +4h07 |
| 550 | 8h54 | 0h53 | 2 | 534 g | 6.2 L | 4,450 mg | +5h06 |
| 600 | 7h59 | 0h48 | 2 | 479 g | 5.6 L | 3,992 mg | +6h01 |
| 650 | 7h24 | 0h38 | 2 | 444 g | 5.2 L | 3,700 mg | +6h36 |
| 700 | 7h02 | 0h32 | 2 | 422 g | 4.9 L | 3,517 mg | +6h58 |
| 750 | 6h27 | 0h23 | 2 | 387 g | 4.5 L | 3,225 mg | +7h33 |
| 800 | 6h10 | 0h23 | 2 | 370 g | 4.3 L | 3,083 mg | +7h50 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
Measured on the 2026 edition: the field checkpoint by checkpoint
822 starters, 12.9% DNF rate, 12 timed checkpoints.
| Segment | km | Median | Middle half | Measured |
|---|---|---|---|---|
| Start → AS1 Mt. Kariyasu | 8.7 | 1 h 37 | 1 h 25 – 1 h 50 | 821 |
| AS1 Mt. Kariyasu → AS3 Kutani Dam IN | 16.4 | 1 h 05 | 58 min – 1 h 13 | 821 |
| AS3 Kutani Dam IN → AS3 Kutani Dam OUT | 16.4 | 3 min | 2 min – 5 min | 820 |
| AS3 Kutani Dam OUT → AS4 Kutani Shinsui Park IN | 21.3 | 32 min | 29 min – 37 min | 819 |
| AS4 Kutani Shinsui Park IN → AS4 Kutani Shinsui Park OUT | 21.3 | 5 min | 3 min – 7 min | 816 |
| AS4 Kutani Shinsui Park OUT → AS8 Imadate Aios Square IN | 30.2 | 1 h 24 | 1 h 13 – 1 h 36 | 816 |
| AS8 Imadate Aios Square IN → AS8 Imadate Aios Square OUT | 30.2 | 7 min | 4 min – 10 min | 809 |
| AS8 Imadate Aios Square OUT → AS9 Takigahara IN | 41.7 | 3 h 02 | 2 h 37 – 3 h 22 | 807 |
| AS9 Takigahara IN → AS9 Takigahara OUT | 41.7 | 9 min | 6 min – 13 min | 784 |
| AS9 Takigahara OUT → AS10 Tonoo IN | 49.8 | 1 h 54 | 1 h 38 – 2 h 07 | 757 |
| AS10 Tonoo IN → AS10 Tonoo OUT | 49.8 | 4 min | 3 min – 6 min | 719 |
| AS10 Tonoo OUT → Finish | 56.5 | 1 h 08 | 1 h 00 – 1 h 17 | 716 |
Where runners drop out. AS10 Tonoo IN (39) · AS9 Takigahara OUT (27) · AS9 Takigahara IN (24) out of 106 total DNFs.
RAVIT record from the official timing of the 2026 edition, data from September 14, 2026.
SourceOther trails worth preparing for
Kagaspa Trail Endurance 100 - KAGASPA 50K over the years
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — Kagaspa Trail Endurance 100 - KAGASPA 50K
Weather for Kagaspa Trail Endurance 100 - KAGASPA 50K
The weather for Kagaspa Trail Endurance 100 - KAGASPA 50K will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for Kagaspa Trail Endurance 100 - KAGASPA 50K, hour by hour on the courseFrequently asked questions
How many checkpoints?
Kagaspa Trail Endurance 100 - KAGASPA 50K has 7 checkpoints: 7 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to AS9: TAKIGAHARA/滝ケ原: 11.5 km and 0 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
Kagaspa Trail Endurance 100 - KAGASPA 50K is 57 km long with 2607 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 7h59 for Kagaspa Trail Endurance 100 - KAGASPA 50K.
What's the weather forecast?
The weather for Kagaspa Trail Endurance 100 - KAGASPA 50K will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for Kagaspa Trail Endurance 100 - KAGASPA 50K?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
No card required · Instant results