March 18, 2023

UTMB Index

You know where the best paths lead to. Follow them.









Start: March 18, 2023, Saturday, 3:00 AM / Kayapa Central School
Finish: March 18, 2023, Saturday, 6:00 PM / Kayapa Central School
Awarding and Closing Ceremonies: March 19, 2023, Sunday, 10:00 AM / Kayapa Central School
Race Briefing and Race Kit distribution: March 17, 2023, Friday, 1:00 PM – 5:00 PM / Kayapa Central School


*Runners not able to make the cut-off time in any of the cut-off stations will hire a vehicle that will ferry them back to Kayapa Central School. Cut-off time is defined as the time you leave the station and NOT the time you arrive.

First Cut-off: Kayapa Proper West Market ~35km (8:00:00 hours)
Finish Line Cut-off: Kayapa Central School (15:00:00 hours)


  1. There will be NO drop bag stations.
  2. A baggage counter at the start/finish line will be available.
  3. Support vehicles/crew are allowed only at the designated aid stations and not elsewhere. Any individual, team or group wishing to act as support crew or race volunteer must request approval from the Race Director prior to deployment.


Given the nature of this trail event and the risks that come with high-altitude races, the following are required of all OST50 participants:

  1. Every participant must be at least 18 years of age on race day. Those who will not be 18 years of age on race day must submit a signed parent’s or guardian’s consent.
  2. He / she must have officially finished a trail marathon or trail half marathon (all results must be verifiable from the internet).
  3. Qualifying races must be completed in the period from March 15, 2022 – March 15, 2023.
  4. All participants must abide by the Race Rules and Guidelines.

The Route

The Old Spanish Trail (OST) is a path that was built and used by the Spaniards centuries ago to connect the provinces of Benguet and Pangasinan. The trail still exists today although it remains single-track and is used mainly by a few mountain climbers and locals who travel on foot.

The Old Spanish Trail 50km route begins with a steep climb to the summit of MOUNT UGO, before dropping towards the picturesque Old Spanish Trail, then several ascents more to another summit before heading towards the finish line in KAYAPA.

From KAYAPA CENTRAL SCHOOL, runners will start heading towards the trailhead in TALECABCAB and ascend eight kilometers through a mix of dirt roads and intermittent stretches of concrete tire paths towards INDUPIT. The climb ends at the INDUPIT JUNCTION where the ANSIPSIP foot trail starts (at 1,866 masl).

Runners will proceed around 2km to the next landmark being BUNDAO (1,835 masl, ~KM10) where AID STATION 1 is located. On their way, runners will turn right upon reaching ANSIPSIP WAITING SHED (1,970 masl, ~KM11) and run towards BARANGAY ANSIPSIP, (~KM 15). From there, runners will go to BACUYAN (1,770 masl), and start the more than 1 kilometer ascent to the summit of MOUNT UGO (2,150 masl), the highest point of the route. All runners must make sure to check in with the race marshal at the peak, who in turn will record every runner’s name and race number.

After summiting, runners will return to BACUYAN JUNCTION, and make a sharp right turn towards the SADDLE / DOMOLPOS WAITING SHED (AID STATION 2), where spring water and trail food will be available. After passing the SADDLE/DOMOLPOS WAITING SHED, they will proceed to the picturesque OLD SPANISH TRAIL. The 11-kilometer, mostly downhill trail will lead to AID STATION 3 at the KAYAPA PROPER WEST MARKET, the lowest point of the route.

All runners are STRONGLY advised to eat, drink and refill here for the long grind ahead. This will be the last food station until CASTILLO VILLAGE (AID STATION 4). KAYAPA PROPER WEST MARKET is also CUTOFF POINT 1 (8:00:00 hours). Runners who do not make the cut-off time here will be disqualified and prevented from resuming the race. From KAYAPA PROPER WEST MARKET, runners will pass rice paddies and a hanging bridge on their way to BARANGAY AMELONG LABENG, which is marked by its Barangay (village) hall, school, worship place and a basketball court.

The next landmark to the SECOND SUMMIT will be a cellular phone site tower. Runners will then exit at the Nueva Vizcaya-Benguet Road, turn left and proceed uphill on a concrete road to the entrance of CASTILLO VILLAGE which is marked by a huge welcome sign, a waiting shed, and a World War II Memorial. The shed also marks the location of AID STATION 4. From this point, runners will take the concrete road of about four kilometers in distance going to the finish line in KAYAPA CENTRAL SCHOOL.

Elevation Profile

GPX Profile: (FOR 2023 UPDATING)

Any changes in the race course, which is possible, will be posted here or be explained in detail during the race briefing.

Registration Fees

(Part of your registration fee goes to the KOTM scholarship fund and outreach projects)

LATE REGISTRATION PERIOD: JANUARY 18, 2023 – FEBRUARY 18, 2023 (Late registrants pay a surcharge of 50%)

PhP 3,500.00

Inclusive of trail fees, event token, pre-race snacks and post-race meal. Official finishers will also receive a finisher’s token.

How to Register

Click the following link to register:

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