IRONMAN 70.3 · State College · 23 May 2027
Training for IRONMAN 70.3 Pennsylvania Happy Valley
People remember this race for its finish. You run through the Beaver Stadium tunnel, around the field, and out to a finish in a pep rally. So they arrive thinking about the run, and about the three climbs the organiser has given names to. Neither is where the day goes.
The bike is where it goes. It climbs 1002 m in 90.3 km and fills 54 percent of a Trained athlete's day. And the single largest block of time on it is not a flat road. It is one climb, 4.2 km at 5.6 percent, starting at kilometre 62, when the legs already hold 60 km of rolling farmland.
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 km1 m upCourse file
- Bike90.3 km1,002 m upCourse file
- Run21 km190 m upCourse file
The swim is a single loop of Foster Sayers Reservoir at Bald Eagle State Park, 1.9 km with a beach start and finish and just two right turns. The water was 25 C in 2024 and 22 C in 2025.
Then 90.3 km of smooth, quiet roads through the rural farmland of central Pennsylvania. The organiser has named three of its climbs Beaver Bluff, Old Main Grind and Nittany Summit, though the course page does not say which is which. The file tells its own story. The first 24 km roll gently, then a staircase of short climbs lifts you about 170 m by kilometre 45, the last of them 826 m at 6.4 percent. A 1.3 km descent and nearly 12 km of flat road follow, then a shorter rise, and then the long one, from kilometre 62 to the high point of the ride near kilometre 66, and a descent of almost 2 km at 7.4 percent off the top. The last 24 km trend downhill but keep kicking up, including 286 m at 7.3 percent near kilometre 77 and 434 m at 6.2 percent near kilometre 87.
The run rolls through the Penn State University campus for 21 km, climbing 190 m in short rises of up to 4.6 percent, before the last 6.5 km settle into one flat segment and the stadium.
Course shape by distance
- Flat 80%
- Climbing 11%
- Descending 9%
The longest stretches
- Bike, climbing4.19 km12% of the bike
- Bike, climbing0.29 km1% of the bike
- Run, flat6.46 km31% 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.
The bike, and then the bike again. Aerobic endurance scores 85 there and muscular endurance 83, with threshold durability at 71 and threshold capacity at 70, and because the bike carries more than half of the day, the seven largest demands on the whole course all sit on it. The run's own pair reads 85 and 82. The swim reads 85 and 80, with technical skill at 66 in fourth place.
What gives this course its character is how often the road changes its mind. The file carries 19 climbs of 3.4 percent or steeper, and a Trained athlete spends roughly 51 minutes of the ride going up. High-intensity capacity reads 58 on the bike and strength and force 48. Feed the bike file to the engine for a session and it answers with a dozen efforts of three quarters of a minute, four minutes of easy riding between each, and files that session under threshold durability. That is the right label. The problem here is not any single ramp. It is holding a steady number up the nineteenth one.
Weather barely registers in the demand, at 10 on every leg, and the logs explain the low score without making the day easy to dress for. The organiser logged a high of 25 C in 2024 and 11 C in 2026.
A Trained athlete swims 38:21, rides 3:18:44 at 182 W and runs 1:59:14, finishing in 6:06:19. The Competitive band finishes in 5:15:14 from 4.15 W/kg at 75 kg and 4:20 /km threshold pace. It rides 28 minutes faster and runs 18 minutes faster, so most of the difference is bought on the bike.
- Aerobic endurance85
- Muscular endurance80
- Threshold capacity70
- Technical skill66
- Aerobic durability65
- Threshold durability65
- Fueling resilience55
- High-intensity capacity40
- Anaerobic capacity25
- Strength / force20
- Environmental resilience10
- 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
Twelve dimensions, scored twice. The course's scores come from its files. An athlete's come from their thresholds and their connected training history, and every one of them states what it was read from and how far it can be trusted. The course only opens a gap where it asks for more than the athlete can show, and each gap is weighted by the share of the day it occupies. With the bike at more than half and the swim at about a tenth, the bike gaps decide the order.
There is no athlete on this page. The season under it assumes the gaps sit where the demands are biggest and lays out 24 weeks in 5 developmental blocks and a two-week taper. This course pulls the sports apart in the middle of that season. Aerobic endurance leads the first block everywhere. In the second, threshold capacity leads the bike, threshold durability leads the run and technical skill leads the swim. The third swaps the two threshold leads between bike and run. Muscular endurance leads the fourth block and aerobic endurance the last. A member's season starts from their own numbers and will argue with every one of these choices.
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, 54% of the day85 × 54%46
- 02Muscular enduranceBike leg, 54% of the day83 × 54%45
- 03Threshold durabilityBike leg, 54% of the day71 × 54%39
The bike takes 54% 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 Pennsylvania Happy Valley 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
- SupportBike threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportSwim threshold capacity
- SupportRun threshold durability
- SupportSwim technical skill
- Weeks 6 to 9Foundation 2Closes with a recovery week
- PriorityBike threshold capacity
- PriorityRun threshold durability
- PrioritySwim technical skill
- SupportBike aerobic endurance
- SupportRun aerobic endurance
- SupportSwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportBike threshold durability
- SupportRun threshold capacity
- SupportSwim threshold capacity
- Weeks 10 to 13Foundation 3Closes with a recovery week
- PriorityBike threshold durability
- PriorityRun threshold capacity
- PrioritySwim threshold capacity
- SupportBike aerobic endurance
- SupportRun aerobic endurance
- SupportSwim aerobic endurance
- SupportBike muscular endurance
- SupportRun muscular endurance
- SupportSwim muscular endurance
- SupportBike threshold capacity
- SupportRun threshold durability
- SupportSwim technical skill
- 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
- SupportBike threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportSwim threshold capacity
- SupportRun threshold durability
- SupportSwim technical skill
- 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
- SupportBike threshold durability
- SupportBike threshold capacity
- SupportRun threshold capacity
- SupportSwim threshold capacity
- SupportRun threshold durability
- SupportSwim technical skill
- 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
0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, then 0.8 min at Zone 5, 4 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
- 78 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 | 0:45:15 | 3:41:52 | 2:23:23 | 7:00:30 |
| Trained1:51 /100m critical swim speed · 3.03 W/kg at 75 kg · 5:06 /km threshold pace | 0:38:21 | 3:18:44 | 1:59:14 | 6:06:19 |
| Competitive1:36 /100m critical swim speed · 4.15 W/kg at 75 kg · 4:20 /km threshold pace | 0:33:10 | 2:50:46 | 1:41:18 | 5:15:14 |
| Elite1:26 /100m critical swim speed · 5.27 W/kg at 75 kg · 3:50 /km threshold pace | 0:29:43 | 2:35:58 | 1:29:37 | 4:45:18 |
Pacing plan
- 0 km0.1%30.3 km/h7:47
- 3.93 km-3.5%47.6 km/h0:15
- 4.13 km1.8%22.5 km/h1:19
- 4.62 km3%18 km/h0:53
- 4.89 km-0.2%31.8 km/h22:05
- 16.6 km-4%49.9 km/h0:20
- 16.9 km3.9%15.4 km/h1:48
- 17.3 km-0.2%31.8 km/h0:46
64 more segments in the full plan.
- Run: reach 4:20 /km and this course gives back 51:05.
Where it is decided
From kilometre 62 to the top.
The engine gives that climb 12 percent of the bike leg, more than any other stretch of the ride, flat or not. It arrives after 60 km of rises and a long flat stretch that tempts you to press, and it is long enough that effort spent early on it compounds all the way up. A rider who holds 182 W from the bottom reaches the top able to use the descent. A rider who hits it hard spends the steep drop off the top recovering, and then meets the kicks at kilometre 77 and 87 with nothing to answer them.
The run collects the difference. The first 14.5 km roll across campus in short rises and drops. The last 6.5 km are flat, 31 percent of the run leg in one piece, and a Trained athlete reaches them after more than five hours of racing. That is where a rider who paced the long climb holds their pace all the way to the tunnel, and where a rider who did not starts counting the distance to the stadium.
Getting it wrong
Racing the names. Beaver Bluff, Old Main Grind and Nittany Summit sound like the places to prove something. The steepest ramp in the file, whatever its name, is 286 m and takes about 1 percent of the bike leg. Nobody wins the race on it, and plenty spend there what they needed at kilometre 62.
Pressing the flat before kilometre 62. The nearly 12 km of flat road after kilometre 46 feel like free time after the staircase. They are the approach to the climb that decides the day.
Dressing for the wrong year. The organiser logged 25 C one year and 11 C two years later, with a low of 8 C in between. Check the forecast in race week and plan for a fast descent of almost 2 km at 7.4 percent in whatever the air turns out to be.
Conditions on the day
- 2026high 11 C, low 8 C
- 2025high 14 C, low 8 Cwater 22 C
- 2024high 25 C, low 14 Cwater 25 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 Pennsylvania Happy Valley 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
- 6:06:19
- Of the day on the bike
- 54%
- Dimensions scored per leg
- 12
- Season runway shown
- 24 wk
Questions people ask
- How hilly is the IRONMAN 70.3 Pennsylvania Happy Valley bike course?
- Hilly for a half-distance triathlon. The 90 km climbs 1002 m, and the organiser has named three of its climbs Beaver Bluff, Old Main Grind and Nittany Summit. The longest climb in the course file is 4.2 km at 5.6 percent from kilometre 62. The steepest is 286 m at 7.3 percent near kilometre 77.
- What weather should I expect at IRONMAN 70.3 Pennsylvania Happy Valley?
- The organiser's logs swing widely. The high was 25 C in 2024, then 14 C in 2025 and 11 C in 2026, with a low of 8 C in both of the last two years. The water in Foster Sayers Reservoir was 25 C in 2024 and 22 C in 2025.
- Where does the IRONMAN 70.3 Pennsylvania Happy Valley run go?
- Through the Penn State University campus, then through the Beaver Stadium tunnel and around the field, finishing just outside the stadium. It climbs 190 m in 21 km, and the last 6.5 km read as one flat segment.
- How long is the season on this page?
- The illustrative season runs 24 weeks, with five developmental blocks and a two-week taper. It is built from the course alone. A member's season starts from their own numbers and can be longer.
Course data from the organiser’s published files, analysed 24 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, and 5150 is a trademark, 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.