Course of TBT may slightly change, especially in first 5km (will announce)

Formosan Wild Boar

51km / 4100m D+ (ITRA-3 M, UTMB® qualification)

start 3:30am 9th May 2020

  • This is option is for skilled runners who dare go beyond their limits. You can expect lot elevation and technical trails in this course.
  • You have to be fully independent and carry everything what is necessary for stay in deep forest.
  • 17hours to finish – Most important is cut time in cpB on 24.5km, you have to reach it before 9:30am (6:00 hours after start)
  • please note there is not more possible change to 40km in cpB distance and have results of 40km
  • There is not possible change from 50km to 25km in cpA. In general this event do not allow any change of distance during the race day!
  • Finisher
    • <10h Black Boar and ton of glory
    • <11h Black Boar
    • 11-13h Golden Boar
    • 13-15h Silver Boar
    • 15-17h Bronze Boar
    • 17h+ Dirty Boar and ton of pain


51km / 4100m D+ (ITRA-3 M, UTMB® qualification)

start 3:30am 9th May 2020

  • 這是一個有經驗技術的選手想要挑戰超越自己的限制,此賽程有很大的高低起伏及技術性的山徑。
  • 請注意這段50公里是最有挑戰的路段,必須確定體能狀況及技巧
  • 避免惡劣天氣,CPB會嚴格執行關門時間,視天氣狀況,為安全理由,主辦單位有權利縮短關門時間,請選手務必遵行

IMPORTANT! ITRA 420 general Performance Index is minimum to join TBT50. Or be already finisher of TBT50 under 18hours. Or significant experience with  similar or adventure races. Please contact us via email if any question or doubts. We wish increase safety of this event, thank you for understanding.

Cut times
  • cp-B 9:30am (optional redirect to finish 40km, but not results – DNF)
  • cp-C 3pm (DNF)

Formosan Barking Deer

25km / 1820m D+ (ITRA-1 XS, UTMB® qualification)

start 6:30am and 7:00am 9th May 2020

  • If you have already experienced with trail running and wish try more this is for you.
  • You have to be very independent in nature and carry all equipment as in Wild Boar course. It is very challenging and it will take you many hours to cover this course.


25km / 1820m D+ (ITRA-1 XS, UTMB® qualification)

start 6:30am or 7:00am 9th May 2020

  • 如果您已經有很多跑越野山徑的經驗,並且希望可以嘗試更多,此賽程非常適合。
  • 您必須在大自然非常獨立,並且攜帶充足的裝備(如同野豬賽程的選手)。
Cut times
  • basically there is not possible DNF due difficult access to both check points, please consider your skills before sign up for TBT25.
  • We may apply cut time in the middle of “climb” before cpA, c. 9km of 25km, at 10am! From this point you will be transfer back to venue.
TIMING for NEXT Edition

because it was first time we applied start in waves and cut time for safety reason, we learn more and need set more strict rules to join TBT25.

  • ELITE (ITRA 380+) start 6:30
  • ADVENTURER (*ITRA 320+) start 7:00
  • *if not any ITRA record still may contact us to get permitting to join, but <320 cannot join event
  • CUT TIME in WFR (c. 1.3km before cpA before main rope section) at 9:15~9:30am depends on weather condition and decision of race director in race day. This year we stop only 6 person after 9:30.


TBT25 will start in TWO waves:

    • start 6:30am
    • ITRA PI (General Performance Index) ITRA 350+ required
    • start 7:00am
    • ITRA PI (General Performance Index) ITRA 270+ required
    • even your ITRA is higher can choose this category (eg. accompany friend with lower performance)
    • if you have lower <270 or not any ITRA record you may still contact us

Formosan Rock Macaque

12km / 750m D+ (ITRA-0 XXS)

start 7:45am 9th May 2020

  • Very nice trail in in betel nuts farms, nice forest with no many challenging parts.
  • It is very suitable for occasional runners or runner’s who would like gain experiences with trails.


12km / 750m D+ (ITRA-0 XXS)

start 7:45am 9th May 2020

  • 此賽道為非常棒的檳榔樹徑,沒有很多技術難度的部份。
  • 這是非常適合偶爾跑步的跑者,或是想要獲得更多山徑經驗的跑者。

Formosan Flying Squirrel

start 8:00 am 9th May 2020

  • Fun hike best for very beginners or kids with parents
  • Include T-shirt, finisher medal,and meal for finisher
  • Not timing of this category, only finishers.
  • Kids younger than 10 years has to participate with one adult!
  • agreement under age of 18 (please send to Download Parents Agreement


start 8:00 am 9th May 2020

  • 健行活動或是針對越野跑初階者
  • 包含T-Shirt及號碼布,完賽獎牌及飲料
  • 沒有包含晶片及排行
  • Kids younger than 10 years has to participate with one adult!
  • agreement under age of 18 (please send to Download 未成年子女參賽同意書

The Beast Trail in Google Map

Open map here:



GPS device is mandatory equipment for

TBT50 GPS裝備必為強制性裝備

you can download .gpx files in two ways:


  • we recommended use Locus Free for Android devices (can download certain maps and upload .gpx or .kml track)
  • simple elevation chart and map is also available (final map will be published few weeks before race)


  • Course of 4,12,25 and 50km are same as in 2017

Official marking on course

  • Red ribbon with reflective stripe and PINK satin ribbons.
  • Runner must stay on the marked course. Shortcuts are not permitted. If you get lost, please return to the last sighted marking.
  • Please note that course will be marked prior to the race, there is still the possibility of markings being defaced or removed by vandals.