Welcome to the 3rd Edition of Silabur Ultra Trail 2025 (SUTra2025). This adventure event is presented to you by Alpha Sport Event (ASE).

SUTra2025 will take place at Bidayuh Kpg Lubang Batu, Tebakang. Roughly 40km from Serian town & 100km from Kuching.  

The course covers a natural mountain trail & the magnificent Silabur Cave aka Jade Cave.  

SUTra2025 offers various distances to choose from the challenging 100km to a shorter beginner friendly 15km. The race course offers 15km/ 30km/ 50km/ 100km. 

Discover the beauty of Sarawak when you run over the mountain and explore the caves. 

Event Details

Date : 12 & 13 April 2025 (Sat & Sun)
Venue : Kampung Lobang Batu, Serian, Sarawak
(Google Map – Kampung Lobang Batu)
Distance : 15KM, 30KM, 50KM & 100KM 

CATEGORY 

AGE 

START 

END 

CUT-OFF TIME 

15KM Men & Women Open 

17 - 45 yrs old 

7:00 am 

13 April 2025 

12:00 pm 

13 April 2025 

5 hours 

15KM Men & Women Veteran 

46 yrs old & above 

30KM Men & Women Open 

17 - 45 yrs old 

5:00 am 

13 April 2025 

2:00 pm 

13 April 2025 

9 hours 

30KM Men & Women Veteran 

46 yrs old & above 

50KM Men & Women Open 

17 - 45 yrs old 

4:00 am 

13 April 2025 

8:00 pm 

13 April 2025 

16 hours 

50KM Men & Women Veteran 

46 yrs old & above 

100KM Men & Women Open 

17 - 45 yrs old 

7:00 am 

12 April 2025 

4:00 pm 

13 April 2025 

33 hours 

100KM Men & Women Veteran 

46 yrs old & above 

 

Registration Fee

CATEGORY 

Super Early Bird 
(First 100 pax) 

Early Bird 
(101 - 200 pax)

Normal
(201 & above pax) 

15KM Men & Women Open 

RM117 

RM130 

RM170 

15KM Men & Women Veteran 

RM117 

RM130 

RM170 

30KM Men & Women Open 

RM198 

RM220 

RM270 

30KM Men & Women Veteran 

RM198 

RM220 

RM270 

50KM Men & Women Open 

RM270 

RM300 

RM350 

50KM Men & Women Veteran 

RM270 

RM300 

RM350 

100KM Men & Women Open 

RM342 

RM380 

RM430 

100KM Men & Women Veteran 

RM342 

RM380 

RM430 

 

Note: 

  • Above fee excludes ticketing fee of 8% or minimum fee RM3
  • Priority Registration will be open for Last year participants to get 5% discount on Super Early Bird Price until 3 October 2024. We will not entertain any request for the discount after the said date. 

Runner's Entitlement

ENTITLEMENT 15KM 20KM 50KM 100KM
 Event Tee ✔️ ✔️ ✔️ ✔️
 Finisher Tee ✔️ ✔️ ✔️ ✔️
 Finisher Medal ✔️ ✔️ ✔️ ✔️
 Running Bib ✔️ ✔️ ✔️ ✔️
 E-Certificate ✔️ ✔️ ✔️ ✔️
 Trophy (Top 3) ✔️ ✔️ ✔️ ✔️
 On-site refreshments & drinks ✔️ ✔️ ✔️ ✔️
 Insurance ✔️ ✔️ ✔️ ✔️

Mandatory Items

MANDATORY ITEM 15KM 20KM 50KM 100KM
 Running Vest / Bag ✔️ ✔️ ✔️ ✔️
 Min 1000ml capacity water bladder of soft flask ✔️ ✔️ ✔️ ✔️
 Mobile Phone ✔️ ✔️ ✔️ ✔️
 Headlamp (100KM with spare battery) ✔️ ✔️ ✔️ ✔️
 Whistle ✔️ ✔️ ✔️ ✔️
 Personal Cup or Bottle ✔️ ✔️ ✔️ ✔️
 Blinker   ✔️ ✔️ ✔️
 Emergency Blanket   ✔️ ✔️ ✔️
 First-aids Kit ✔️ ✔️ ✔️ ✔️
 Energy Food ✔️ ✔️ ✔️ ✔️

Strongly Recommended Items

  • Cap/Hat
  • Sun Block
  • Rain coat/Jacket
  • Headbuff/Scarf
  • Hiking poles
  • Good grip trail shoes
  • Sports gels and nutrition
  • Sunglasses
  • Electrolyte tablets/Hydration Salt
  • Additional Drinking Water Storage
  • UV Protection Clothes

Rules & Regulations

1) ELIGIBILITY  

Participants for category 30KM, 50KM and 100KM must be aged 18 years old and above on 12th April 2025.  

2) NON-REFUNDABLE & NON-TRANSFERABLE  

Participants acknowledge and agree that upon registration, the entry fees are non-refundable, non-transferable and non-deferrable.  

3) MODIFICATIONS / CANCELLATION / FORCE MAJEURE  

The Organiser reserves the right to change the Date and/or Venue or to postpone or cancel the Event for any reason whatsoever including force majeure (i.e. due to occurrence of any incident, condition or event that are beyond the reasonable control of the Organiser and which, in the Organiser’s opinion, renders it impossible or unsafe to hold the Event) at any time without prior notice to the Participant, in which case the Organiser will make effort to inform the Participant prior to the Date. If the Event has to be postponed or cancelled, there shall be NO refund of fees and the Organiser shall not be liable for any loss or inconvenience caused.  

4) SEMI-SELF- SUFFICIENCY  

  • Runners must complete the set course on foot by their own power and ability within the stipulated time; 
  • Drinking cups will not be provided at any of the water station points; runners must have their own cup or other personal container suitable for the purpose 

5) RUNNERS RESPONSIBILITIES  

  • Runners must understand the unique nature and requirements of competing in an ultra-long distance road running race. He/she will be running all day and night on the road. He/she must have undertaken the necessary training to compete in such a race. 
  • Runners will be responsible for his/her self safety by having the ability and skills to deal with any problems that may be encountered during the race of this nature. 
  • Runners must be able to undertake or deal with on his/her own without any other external assistance during the deteriorating weather conditions (e.g. raining, strong winds, hot sun etc.) and other unforeseen circumstances arises while running on the road. 
  • Runners must be able to undertake or deal with his/her extreme fatigue, internal organ and digestive problems, muscle pain, mild physical injuries and psychological problems during the race. 
  • Runners who accept any assistance and support from any person may be disqualified. 
  • In the event of a runner meeting another runner who is in health difficulty or injured, he/she must stop to help and inform the race Organiser to seek for medical assistance. 
  • Runners are not allowed to wear headphones, earphones or/and speakers during the race.  

6) MANDATORY ITEMS  

By entering the race, each runner undertakes to take with him/her all the mandatory items as listed below throughout the race. Failure to do so will result in application of the time penalties or disqualification.  

Mandatory items (checks may be carried out along the route during the race, including the top 10 runners of every category). 

 7) IMPORTANT NOTICE  

Before the Race flag off, all participants must report to the official tent, to perform mandatory items check. After the successful check, participants will receive a unique ribbon which is tied to the backpack of the participants. Runners who run without this ribbon will be disqualified.   

8) RECOMMENDED ITEMS (not compulsory):  

  • Sport foods & Gels 
  • Rucksack or waist bag 
  • Elastic adhesive bandage that can be used as a dressing
  • Head gear or cap or bandana
  • Sunglass or Suntan lotion/cream with UV block
  • Change of clothes and running shoes
  • Waterproof jacket
  • Cash
  • Route Map and Elevation Map 

9) DROP BAGS  

  • Drop bags may be deposited at the starting/finishing point for all runners. Runners may use their own bags for luggage deposit. 
  • Runners may choose not to deposit any drop bags. This is not a compulsory requirement. 
  • Fragile or valuable items should not be placed in the drop bags; 
  • Bags with objects attached to the outside will not be transported. 
  • If a runner pulls out of the race, his/her bag will be transported to the race finishing point, where he/she may collect it upon presentation of his/her bib number. The runner shall understand that the timing of the return of his/her drop bag will be subject to the schedule of the race shuttle bus/trucks; 
  • The Organiser may not be held liable for the loss or damage of any objects in the drop bag during the race. 
  • Drop bag must be given to race Organiser at the start line 1 hour before the race starts; 
  • The race Organiser will NOT be keeping them for the runners.  

10) SAFETY AND MEDICAL ASSISTANCE  

  • In order to ensure race safety, race Organiser will prepare and arrange for rescue and medical assistance during the race. However, each participant must recognize and understand that there are risks of injuries and/or accidents associated with road running. Runners are participating in this race at his/her own risk; 
  • While the race Organiser has purchased Public Liability Insurance for this event, it is strongly recommended that the runners have obtained an adequate Personal Medical Insurance coverage 
  • Medical points will be set up at certain water station points; 
  • If necessary, and in the interests of the person being rescued, at the exclusive discretion of the Organiser, the official medical rescue services may be called upon to take over operations, using any means they consider appropriate, including an ambulance. Any costs deriving from such exceptional transport will be charged to the person who has been rescued; 
  • Depending on the runner's health conditions, an emergency evacuation may be required. This emergency evacuation will be at the expenses of the person being rescued; 
  • The official race medical assistants are authorised to withdraw from the competition any runners that they consider as unfit to continue or are in danger. The runner bib will be removed as part of the DNF (Did Not Finish) procedures; 
  • If a runner drops out from the race, the runner must first inform and register with the nearest checkpoints that he/she is dropping out. Proper "DNF" procedure should be followed and completed before the runner is allowed to leave the event: 
  • In case of an emergency, if you are unable to reach the race headquarters, you can also call the public emergency number '999' directly for help; 
  • The race Organiser reserves the right to implement any additional measures at any time to enhance and protect the safety of the race and the runners before the race and during the race.  

11) CHECKPOINTS OR WATER STATION POINTS  

  • The timing will be recorded at the checkpoints/water station points established by the Organiser; 
  • Only runners sporting their regular bib number will have access to the water station; 
  • Drinks will be provided at every water station; 
  • Food will also be provided at some main water station; 
  • The route map, which can also be downloaded online, will contain accurate indications of the water station points; 
  • The Organiser reserves the rights to carry out checks at other points along the route 

12) MAXIMUM RACE TIME PERMITTED AND CUTOFF TIMES  

The maximum time allotted for completion of the race are: 

  • 15KM – 5 Hours 
  • 30KM – 9 Hours 
  • 50KM – 16 Hours 
  • 100KM – 33 Hours  

In the event of poor weather conditions and/or for safety reasons, the Organiser reserves the rights to suspend the race or to make changes to the cut off times 

13) AMENDMENTS / RESERVATIONS / ACKNOWLEDGMENT  

  • The Organiser reserves the right to modify and/or supplement any part of the event rules. 
  • Participants shall be bound by any such modification or supplemental event rules as maybe published by the Organiser from time to time. Failure to follow these event rules, as may be amended, will result in immediate disqualification and removal from official results. 

Organizer Contact

Organizer : Alpha Sports Event
Contact No : +60168617007
Facebook : https://www.facebook.com/profile.php?id=100086376999869