IRONMAN 70.3 · Laoag · 14 Mar 2027
How to train for IRONMAN 70.3 Laoag
Nobody has raced Laoag yet. The first edition is on 14 March 2027, and until then the only honest preview is the file the organiser publishes and the words on its course page: an ocean swim, a bike that is mostly flat with sections of rolling hills, and a flat run through the heritage streets of the city. Read quickly, that sounds like a fast day. Read the file and the weather table, and it is a hot day with a handful of very steep ramps in it.
720 m of gain on the bike, 92 percent of the whole course flat by distance, and a high of 32 C in the organiser's table for 2026. Those three numbers belong together. The ramps are short, the flat roads are long, and the run starts, for a Trained athlete finishing in 5:55:23, close to four hours after the start.
By Kian Briel, founder. Analysed by engine 1, updated
What is actually on the road
The organiser's own course files, drawn the way the Event Analyzer draws a member's race.
- Swim1.91 km7 m upCourse file
- Bike90.3 km720 m upCourse file
- Run21.1 km251 m upCourse file
The swim starts from Sadiri Beach inside the Fort Ilocandia perimeter, one clockwise lap of 1.9 km. The shape is simple: 150 m out, a left turn at the first red buoy, 725 m along, a right turn at the second, a short 65 m, another right, 760 m back, and a final 150 m to the exit. The organiser describes the water as sheltered and coastal.
The bike is one lap of 90.3 km from T1 at Sadiri Beach. It leaves Fort Ilocandia on the Laoag-Paoay Road, takes the Rodolfo C. Fariñas Jr. Bypass Road to the Maharlika Highway and heads north toward Burgos, using the Pasuquin Bypass Road on the way. The turnaround is at kilometre 48.9, about 350 m short of the Military Park at Cape Bojeador. Then it is back to Laoag City and into T2, which sits inside the Ferdinand E. Marcos Memorial Stadium.
The run is two loops of the city. Out of the stadium along Gov. Roque B. Ablan St., left onto JP Rizal St. to a turnaround on the driveway of the Provincial Capitol, then out along the Bypass Road to a second turnaround at 5.76 km, and back to a third inside the stadium. After the second loop you finish in the same stadium.
The profile makes one thing plain. The steepest climb on the course, 231 m at 11.3 percent, takes 1.3 percent of the bike leg. The run is two long flat stretches, one holding 45 percent of the leg and the other 41 percent.
Course shape by distance
- Flat 92%
- Climbing 5%
- Descending 3%
The longest stretches
- Bike, climbing0.23 km1% of the bike
- Run, flat9.55 km45% of the run
- Run, flat8.63 km41% of the run
Each row is one unbroken stretch of the course that keeps the same shape the whole way. The number is how much of that leg you spend inside it, and it comes out the same whether you are fast or slow.
What this course asks of each leg
Twelve training dimensions scored for each leg against its own course, the way the Event Analyzer scores a member's race.
Aerobic endurance, muscular endurance and threshold capacity, in that order, on the bike and on the run. Because the bike fills 53 percent of a Trained athlete's day, the seven largest demands on the course all belong to it, and the run's first entry only arrives eighth.
What sets Laoag apart sits lower down the bike's list. High-intensity capacity comes sixth and strength ninth overall, both far higher than a course this flat would suggest, and both put there by the ramps. At 11.3, 10.8 and 10.1 percent they are too steep to ride at an all-day power, and short enough that the temptation is to stand up and be done with them. Ask the engine for a bike session built from this file and it returns twelve 30-second efforts in Zone 5 with nearly eight minutes of easy riding between them. Long flat roads broken by sudden short walls.
Technical skill barely registers on the bike, a reading of wide open roads. On the swim it ranks third, and threshold durability sits fourth there, ahead of threshold capacity. Two long straights in open water reward a swimmer who holds a line and a pace for a long time.
The bands put a clock on it. A Trained athlete swims 38:23, rides 3:07:33 at 182 W and runs 1:59:27. The Competitive band rides 2:45:54 at 249 W from 4.15 W/kg at 75 kg, then runs 1:41:30, for 5:10:36. Neither band is climbing its way to that time. The ramps are a sliver of the leg.
Heat is the condition that frames all of it. The organiser's table shows a high of 32 C in 2025 with a low of 23 C, and a high of 31 C in 2024. The organiser's own tagline for the race is "where heritage meets headwind".
- Aerobic endurance85
- Muscular endurance81
- Technical skill74
- Threshold durability73
- Threshold capacity70
- Aerobic durability65
- Fueling resilience55
- High-intensity capacity42
- Strength / force27
- Anaerobic capacity25
- Environmental resilience15
- Sprint power5
Nymiva reads what you can already show, from your own data
Connect your training history and the Focus Lab scores the same twelve dimensions this course demands against where you sit today. The gap between the two is what you train.
- MeasuredFrom your thresholds and testsThreshold power, threshold pace, critical swim speed and field tests you have done. The dimensions they can carry are scored directly.
- EstimatedFrom your training historyConnected activities are read for what they prove: long efforts, late-session fade, repeated hard work, fueling on long days. Each score says how it was read.
- ProxyFrom a stand-in, and named as oneWhere only an indirect signal exists, the score carries the proxy it came from and a lower confidence, never a number dressed as a measurement.
- UnmeasuredHonestly blankA dimension nothing in your data can answer stays unmeasured. It is never a zero, and the plan does not pretend to know it.
Every dimension ends in one word
- Develop the course asks more than you can show
- Maintain close enough to hold at the minimum dose
- Covered nothing to build here
- Unmeasured the course needs it, your data cannot say yet
In Nymiva, twelve dimensions are read off the course file and the same twelve off the athlete, the second set from thresholds and connected training history, and every one of those athlete scores says what it was read from. Only where the course asks for more than the athlete can show is there a gap, and gaps are ranked by how much of race day they fill. A bike gap here carries the weight of 53 percent of the day. A swim gap carries 11 percent.
There is no athlete on this page, so the season it shows can only assume the obvious: that the gaps sit where Laoag's demands are largest. On that assumption it builds 24 weeks of 5 developmental blocks and a taper. Aerobic endurance leads block one in every sport. Threshold durability leads all three in block two. Block three gives the swim to technical skill and the bike and run to threshold capacity, block four belongs to muscular endurance, and aerobic endurance leads again in block five. Your own season is built from your numbers and will look different.
Train the bike to protect the run
Which demands matter most across the whole race. A leg's demand counts for as much of the day as that leg takes, so a score of 85 on the bike outweighs the same score on the swim.
- 01Aerobic enduranceBike leg, 53% of the day85 × 53%45
- 02Muscular enduranceBike leg, 53% of the day82 × 53%43
- 03Threshold capacityBike leg, 53% of the day70 × 53%37
The bike takes 53% of the Trained reference band’s day, so its demands carry the most race weight. What the bike leaves in the legs is what the run gets.
Which demand gets a block, and when
The engine freezes one lead focus per sport on every developmental block, holds the rest at maintenance, and verifies before it reprioritises.
An illustration, not your plan. This page has none of your data, so the season below is the engine’s answer to one stated assumption: that your gaps line up with what IRONMAN 70.3 Laoag demands. Your own season is built from your history, your thresholds, the days you can train and the races you have entered, and it will differ from this in its priorities, its sessions and its load.
- 01Run muscular endurance, a practice block4 weeks
- 02Run aerobic endurance, a development block4 weeks
- 03Bike muscular endurance, a practice block4 weeks
- 04Bike aerobic endurance, a development block4 weeks
In the order the allocator places them, general first, most race-like last.
- Week 1PrepPrep
A lead-in week. It develops nothing by design.
- Weeks 2 to 5Foundation 1Closes with a recovery week
- PriorityBike aerobic endurance
- PriorityRun aerobic endurance
- PrioritySwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportSwim technical skill
- SupportSwim threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportBike threshold durability
- SupportRun threshold durability
- Weeks 6 to 9Foundation 2Closes with a recovery week
- PrioritySwim threshold durability
- PriorityBike threshold durability
- PriorityRun threshold durability
- SupportBike aerobic endurance
- SupportRun aerobic endurance
- SupportSwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportSwim technical skill
- SupportBike threshold capacity
- SupportRun threshold capacity
- Weeks 10 to 13Foundation 3Closes with a recovery week
- PrioritySwim technical skill
- PriorityBike threshold capacity
- PriorityRun threshold capacity
- SupportBike aerobic endurance
- SupportRun aerobic endurance
- SupportSwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportSwim threshold durability
- SupportBike threshold durability
- SupportRun threshold durability
- Weeks 14 to 17Event shaping 1Closes with a recovery week
- PriorityBike muscular endurance
- PriorityRun muscular endurance
- PrioritySwim muscular endurance
- SupportBike aerobic endurance
- SupportRun aerobic endurance
- SupportSwim aerobic endurance
- SupportSwim technical skill
- SupportSwim threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportBike threshold durability
- SupportRun threshold durability
- Weeks 18 to 21Event shaping 2Closes with a recovery week
- PriorityBike aerobic endurance
- PriorityRun aerobic endurance
- PrioritySwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportSwim technical skill
- SupportSwim threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportBike threshold durability
- SupportRun threshold durability
- Weeks 22 to 23PeakPeak
The taper. Load comes down toward the race, content stays specific.
- Week 24RaceRace
Race week.
Held at maintenance between blocks
- Runmuscular endurance, aerobic endurance, aerobic durability, threshold capacity, threshold durability
- Bikemuscular endurance, aerobic endurance, aerobic durability, threshold capacity, threshold durability
- Swimaerobic endurance, aerobic durability, threshold capacity, threshold durability, muscular endurance, technical skill
Touches scheduled by each capability’s own decay, at a fraction of its development dose, so earlier work is still there on race day.
The sessions the blocks are built from
One entry per kind of work the block trains, at the intensity that work is meant to be done at. Where the same work runs at several lengths, the entry shows the span it grows across rather than one entry per length.
- Foundation 1 · Weeks 2 to 575 to 240 min
150 to 210 min at Zone 2
BikePower, Zone 2Trains aerobic capacity - Foundation 1 · Weeks 2 to 540 to 270 min
180 to 210 min at Zone 3, then 30 min at Zone 4
BikePower, Zone 3Trains aerobic capacity - Foundation 1 · Weeks 2 to 535 to 120 min
90 min at Zone 2
RunPace, Zone 2Trains aerobic capacity - Foundation 1 · Weeks 2 to 550 min
4 x 1.5 min at Zone 3, 6 min easy between
RunHeart rate, Zone 3Trains aerobic capacity - Foundation 1 · Weeks 2 to 545 to 51 min
4 x 8 min at Zone 2, 1 min easy between
SwimPace, Zone 2Trains aerobic capacity - Foundation 1 · Weeks 2 to 547 to 81 min
3 x 1000 m at Zone 3, 0.3 min easy between
SwimPace, Zone 3Trains aerobic capacity
12× rolling-course surges
0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, then 0.5 min at Zone 5, 7.8 min easy between
Compiled by the deterministic course compiler from the organiser’s file: the course’s one repeatable requirement, rehearsed at a dose the progression allows.
- Bike
- 116 min
- Trains threshold durability
- Supports muscular endurance
- Supports high intensity capacity
24 weeks, laid out backwards from race day
The shortest runway Nymiva builds for this event type, with its blocks, recovery weeks, taper and race week in place.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- Prep
- Foundation
- Event shaping
- Peak
- Race
- Recovery week
Your own season carries these same phases on your own dates, with the load solved from your fitness and the days you can train, and it changes when your data does.
What each level does on the day
Reference finish times per peer band, the pacing plan the model holds each band to, and where the day is decided.
| Band | Swim | Bike | Run | Finish |
|---|---|---|---|---|
| Recreational2:11 /100m critical swim speed · 2.47 W/kg at 75 kg · 6:08 /km threshold pace | 0:45:18 | 3:23:34 | 2:23:40 | 6:42:32 |
| Trained1:51 /100m critical swim speed · 3.03 W/kg at 75 kg · 5:06 /km threshold pace | 0:38:23 | 3:07:33 | 1:59:27 | 5:55:23 |
| Competitive1:36 /100m critical swim speed · 4.15 W/kg at 75 kg · 4:20 /km threshold pace | 0:33:12 | 2:45:54 | 1:41:30 | 5:10:36 |
| Elite1:26 /100m critical swim speed · 5.27 W/kg at 75 kg · 3:50 /km threshold pace | 0:29:45 | 2:31:31 | 1:29:47 | 4:41:03 |
Pacing plan
- 0 km-0.5%33.3 km/h1:03
- 0.58 km3.2%17.4 km/h1:12
- 0.93 km-0.7%34.3 km/h1:15
- 1.64 km-4.7%52.9 km/h0:12
- 1.81 km5.2%12.5 km/h0:50
- 1.99 km-0.1%31.3 km/h15:29
- 10.1 km3.6%16.2 km/h0:37
- 10.2 km-0.1%31.3 km/h5:35
43 more segments in the full plan.
- Run: reach 4:20 /km and this course gives back 44:47.
Where it is decided
On the two long flat stretches of the run, and on what the last climb of the bike leaves you to bring to them.
That climb is the longest steep pitch in the file: 638 m at 10.8 percent, starting at kilometre 83.6, with under seven kilometres of the bike to go. Two sharp descents follow, then 4.7 km of flat road and one last short rise before the stadium. It is the worst possible place for a surge. The ride is nearly over, the stadium is close, and a rider who has held 182 W for close to three hours feels entitled to spend. Spend there and you carry it straight into the heat.
Then the run hands over its whole argument to two flat stretches that hold 86 percent of the leg between them. No climbs to blame, no descents to recover on. A Trained athlete covers the 21.1 km in 1:59:27 from an input of 5:06 /km threshold pace, and in 32 C the difference between that and a long walk is decided by how much the bike took, not by anything the run does.
Getting it wrong
The first mistake is trusting the words mostly flat. They are accurate by distance and misleading at kilometre 14, where the road climbs 231 m at 11.3 percent. Riders who set up the bike for a flat course meet that pitch, and the 10.1 percent at kilometre 71.6, with nothing left to shift into and climb them far harder than they meant to.
The second is the ride north. The course goes up the Maharlika Highway to the turnaround at kilometre 48.9 and comes back down it, and the organiser's tagline promises headwind. On a two-way road any wind is on your face in one direction. Hold your power into it and accept the speed it gives you. Riders who hold their speed instead spend in one direction what the other direction never repays.
The third is the halfway point of the run. The second loop begins with a turnaround inside the stadium, close enough to hear the finish, and in the heat that is where runners who opened too fast on JP Rizal St. discover it. Run the first loop as if the second were twice as long.
Conditions on the day
- 2026high 32 C, low 20 C
- 2025high 32 C, low 23 C
- 2024high 31 C, low 22 C
From the organiser’s own records. Not a forecast.
Every session is a claim, every block is a test
A plan is not a calendar. Each key session states what it trains and how that is checked, and each block ends with a public verdict before the next one is chosen.
What a block promises
Bike aerobic endurance moves from your baseline to a stated target by the end of Foundation 1
- The baseline is your measured score when the block starts. The target is the score the model predicts for it.
- Verified at the block’s recovery week, by a field test or a refresh of the supply read from your history.
- Confidence rises by agreement between independent signals, never by one metric crossing a line.
- A block that misses its target is a public miss. The next block is chosen from what was proven, not from what was planned.
- 01Stimulus achievedThe work landed in the zone the session named, for the dose it named.
- 02Partially achievedSome of the work landed. The session banks what it can prove.
- 03Not achievedThe load may have been there. The stimulus was not, so nothing is banked.
- 04Data insufficientNo usable stream. The session is neither credited nor blamed.
- Session verified
- Progression banked
- Block verified
- Priority reassessed
- Plan adapted
Your numbers, this course
Analyze IRONMAN 70.3 Laoag against my fitness
The same simulation and the same Focus Lab read, on your thresholds instead of a band’s. Three numbers give a finish estimate and a partial read. A connected history gives the whole table.
The first 14 days are free.
- Trained band finish
- 5:55:23
- Of the day on the bike
- 53%
- Dimensions scored per leg
- 12
- Season runway shown
- 24 wk
Questions people ask
- Is the IRONMAN 70.3 Laoag bike course flat?
- Mostly. The organiser describes rolling hills but mostly flat terrain, and the file it publishes climbs 720 m over the single 90 km lap. Most of that sits in short ramps. The steepest sustained one is 231 m at 11.3 percent near kilometre 14, and a 638 m pitch at 10.8 percent comes with under seven kilometres of the bike left.
- Where is the swim at IRONMAN 70.3 Laoag?
- At Sadiri Beach, inside Fort Ilocandia. It is one clockwise lap of 1.9 km in the ocean, with two long straights of 725 m and 760 m between the turns at the red buoys. The organiser publishes no water temperature, so check it and the wetsuit decision in race week.
- How hot is IRONMAN 70.3 Laoag?
- Hot. The organiser's weather table records highs of 32 C in 2026 and in 2025, and 31 C in 2024. The lows in those years never went below 20 C.
- How many loops is the IRONMAN 70.3 Laoag run?
- Two. Each starts at the Ferdinand E. Marcos Memorial Stadium, turns on the driveway of the Provincial Capitol and again on the Rodolfo C. Fariñas Jr. Bypass Road, and comes back to a turnaround inside the stadium. The finish is inside the stadium too.
Course data from the organiser’s published files, analysed 23 Sept 2026 by engine 1, demand model 4. Reference times are simulated for a peer band at a stated reference athlete and are not a prediction for anyone. Nothing on this page is medical advice.
IRONMAN® and IRONMAN 70.3® are registered trademarks of World Triathlon Corporation. Nymiva is an independent training platform and is not affiliated with, sponsored by or endorsed by World Triathlon Corporation. Course data is read from the organiser’s public course pages for the purpose of describing the event.