REG FEE
LOCAL: IDR 2.040.000
FOREIGNER: IDR 2.140.000
START
Friday, 15 May 2026
06:00 PM
ELEVATION GAIN
7.244 m
CUT OFF TIME
34 Hour
WS & DROP BAG
11 WS & Drop Bag at WS6/KM58
AWARD & PRIZE
Open Category
18–39 Years
40–49 Years
50–59 Years
60-69 Years
70+ Years
- Distance: 106.20 KM
- Elevation Gain: 7.244 m
- Cut-Off Time: 34 hrs
- Age range: 18 - 50+
-
Award & Prize:
Open Category
18–39 Years
40–49 Years
50–59 Years
60-69 Years
70+ Years
Cut-Off Time:
- COP 1 at WS4/KM40: 9 Hrs
- COP 2 at WS6/KM60: 16 Hrs
- COP 3 at WS8/KM80: 25 Hrs
Qualification:
Participants must have finished at least one of the following races within the past two years:
• 100K ultra road race
• BTRU 55K/60K ultra trail
• 60K-80K ultra trail race
• Ironman-distance triathlon
• To understand all race qualifications and requirements, please read our full rules and regulations.
| DATE | TIME | EVENT | LOCATION |
|---|---|---|---|
| Thursday, 14 May 2026 | 12:00 – 20:00 WITA | Racepack Collection Day 1 | Race Venue : Batur Natural Hot Spring |
| 16:00 – 17:00 WITA | Race Briefing BTRU 100K | Race Venue : Batur Natural Hot Spring | |
| Friday, 15 May 2026 | 12:00 – 20:00 WITA | Racepack Collection Day 2 | Race Venue : Batur Natural Hot Spring |
| 12:00 – 18:00 WITA | Drop Bag Storage/Penitipan Drop Bag BTRU 100KM | Race Venue : Batur Natural Hot Spring | |
| 18:00 WITA | Flag Off BTRU 100K | Race Venue : Batur Natural Hot Spring | |
| Sunday, 17 May 2026 | 04:00 WITA | Cut-off time BTRU 100K / 34 Hours | Race Venue : Batur Natural Hot Spring |
| 10:00 WITA | Awarding for BTRU 7K, 18K, 60K & 100K winners | Race Venue : Batur Natural Hot Spring |
| GEARS | BTRU 100K & 60K | Details |
|---|---|---|
| BIB Number | ✅ | To indicates that you are an officially registered participant of BTR Ultra 2025 |
| Water/Flask min 500ml or more | ✅ | For long distances and unpredictable weather, at least 500 ml is recommended. |
| Handphone | ✅ | Mobile phone the runner must be reachable at any time before, during and after the race: • With international roaming that works in the countries where the event takes place/use local simcard. • Each runner should save the organization’s safety phone numbers, not mask/block their number and do not forget to start the race with the battery fully charged. • Keep the phone ON at all times, airplane mode is forbidden and could result in a penalty. • An external battery is highly recommended. |
| Energy Food/Bar | ✅ | Recommendation of 800 kcal between water station (ex : 2 gels + 2 power bars) |
| Personal Aid Kits | ✅ | First-aid kits should include wound care like bandages and antiseptic wipes, along with pain relievers, like paracetamol. For longer runs or in case of allergies, consider adding tweezers, blister pads, and antihistamines. |
| Running Pack/Vest or Belt is accepted | ✅ | To carry mandatory gear throughout the race. For the 100k category, it is mandatory to have a Running Vest/Pack, Running Belt is only accepted for 60K |
| Gpx File/Maps on watch/phone | ✅ | To help you navigate during the race route, sometimes we never know when bad luck might hit us. There’s a possibility that the markers might go missing or be tampered with by children, as they can easily catch the eye among the green foliage of the forest. |
| Foldable Glass/Cup | ✅ | To reduce paper glass/single-use plastic waste |
| Foldable Cup/Plate with Spoon & Fork | ✅ | To reduce paper glass/single-use plastic waste |
| Waterproof Jacket/Raincoat | ✅ | With hood & durable water-repellent protection |
| Emergency Blanket | ✅ | To maintain the temperature during bad weather/thunderstorms when far from the aid station |
| Headlamp with spare batteries | ✅ | • Two working headlamps/spare cells/batteries for each headlamp • Recommendation of 200 lumens or more for the main torch light |
| Wishtle | ✅ | To help you send an emergency signal for assistance to other participants or nearby residents. |
| Money | ✅ | As a precaution, if you need additional supplies before reaching an aid station or if you’re unable to continue, you can choose to DNF (Did Not Finish) and find a local driver to take you back to the venue and report to the race commitee. |
| Trekking Pole | Recommended | |
| Buff/Mask | Recommended | |
| Gaiters | Recommended | |
| Sunglasses | Recommended | |
| Gloves | Recommended |
Navigation is a mandatory
Stay on course, stay safe
Navigation is a important part of trail running. With wild terrain and limited markings, every runner must understand the course and stay on track. Good navigation is not just about direction, it’s about safety.
A smartwatch with GPS mapping features, such as COROS, helps runners navigate with greater accuracy and safety.
COROS provides real-time route tracking, sends off-course alerts if you stray from the route, and seamlessly follows GPX files, making it reliable for both racing and training.
If you don’t have a smartwatch, you can also navigate using your smartphone by downloading a GPX Viewer app from the Google Play Store (Android) or the App Store (iPhone).