Half Ironman 12 weeks, Intermediate by HR, RPE, & Power

Average Weekly Training Hours 11:57
Training Load By Week
Average Weekly Training Hours 11:57
Training Load By Week

D3 Half Ironman Plan for Intermediate athletes

Author: Mike Ricci, USAT Triathlon Level 3 Coach
Length: 12 Weeks
Time: 143 hours
This program should be used by an athlete in their second year or triathlon or beyond. The program consists of 3 workouts per week in each sport, 1-2 days of strength training and core work too. The maximum volume is around 16 hours, and consistently around 12 hours.


Author: Mike Ricci

  • Founder, Head Coach D3 Multisport, Inc. 2000-Present

  • USA Triathlon Coach of the Year and 2017 USAT World Team Coach

  • USA Triathlon Elite Level 3 Coach (1 of 19 in the US)

  • Coached the University of Colorado Triathlon team to 4 straight National Titles 2010-2013

  • Coached multiple National Champions, Kona Qualifiers, and 1st time triathletes

  • Coached the AG National Champion in 2015 and AG World Champion in 2016 (25-29 AG)

Requirements: You should be able to swim at least 2,000 yards, bike at least 1 hour and run three times per week with at least one of the runs being 1 hours. By race day we will have you ready when you toe the line! We’ll guide you every step of the way with a detailed plan and access to our private Team D3 Facebook group to ask questions.

Our programs are designed for the age group triathlete who has a busy life with a full-time job, a family and / or other responsibilities. In this program, the longer workouts will be on the weekends, and the weekdays will consist of shorter workouts. There will be bike-run (or brick) workouts on most Saturdays and there will be 2 race simulations during this plan. During the training plan, there is testing every few weeks to assess your fitness and so you can re-adjust your Heart Rate and Power Zones if you train with a GPS/ Power device. If you don’t train with a device, that’s fine as the tests are still good training as you can measure improvement based on time and effort.

Our plans set YOU up for success. The main goal with this plan is to get you to cross the finish line happy and healthy. Mike has been coaching for 25+ years and uses that collective experience to help each individual athlete be successful at any level. His passion for the sport and wisdom gained from coaching thousands of athletes goes into designing a plan. He has taken the guesswork out of training with this plan, and looks forward to helping you too.

We leave no stone unturned in helping you reach your goals. Purchase of this plan includes:

  • A weekly training tip video in your plan.

  • D3 'Terminology', 'Ironman 101', and 'Determining Heart Rate and Power Zones' documents

  • Instructional Videos in all 3 sports

  • Strength training and core workouts with accompanying videos

  • Inclusion in Team D3 and access to our private Facebook group to ask our coaches questions

If you have questions email Coach Mike and learn how we get it done for our athletes: www.D3Multisport.com

IRONMAN®, IRONMAN 70.3® and IRONMAN Triathlon® are registered trademarks of World Triathlon Corporation (WTC).

Sample Day 2
Bike TT 30': Assess Fitness

Power Testing Protocol: Long warm up of at least 20'. Then ride 5x1' at 100 rpms, with 1' recovery. Then you'll ride 5’ hard – 95- 100% effort. Then take an easy 10’ easy spinning before starting the test: Pick a route that you can ride for 30 minutes as hard as you can (Other options are 2x20’ with a 2’ recovery, or a 30' on an indoor bike trainer). If you ride outside, then a flat course or out-back course is best. When you are done ride easy for at least 10'. Record average power, speed & heart rate.

Sample Day 2
Hills, all zones.

On a very hilly course in all heart rate zones. Elevate heart rate as run progresses. Good form. Quick cadence.

Sample Day 3

WU: 300 easy. Then 'swim golf' = 6 x 50 on 15" rest & count strokes. What combination of time and strokes gives you the lowest ‘score?’ (Ex: 43 strokes + 45” = 88).
MS: Swim a moderate effort using the same stroke count in WU set. 8 x 100 (10”) moderate. 4 x 50 kick (20”) moderate.
CD: 200 easy alternating 50 pull, 50 swim.

Sample Day 4

Easy spin for 60' in small chain ring. Do this after a long run or race if one is scheduled.

Sample Day 4
Run 30' TT: 55 min

After 15 minute warm up, stretch, then run 5x100m strides, with a walk back to the start. Then you are going to run for 30 minutes as hard as you can for the entire 30 minutes. Think of this as a 'best effort' test/race. This can be run on track the or measured course (flat). Record the pace and avg HR and get a 10 minute cool down.

Sample Day 6

Ride how you feel. If tired ride in Zones 1-2 (RPE 5-6, 60-70IF) alone. If fresh ride in all zones and may be a group ride. Be smart!

Sample Day 6
4x250 Endurance 2500 yd

WU: 200 non-free. 500/400/300/200/100 freestyle at T-pace with 100 backstroke or kickboard recovery between each freestyle set. CD: 400 non-freestyle or kicking mix.

Michael Ricci

The key to achieving your goal is having a plan! D3 Multisport founder and head coach Mike Ricci uses his collective 25+ years of coaching experience to help each individual athlete be successful - at any level. His passion for the sport and wisdom gained from coaching thousands of athletes all go into the design of his training plans. Let the D3 coaching team take the guesswork out of your training and guide you with pre-built training plans, customized plans, or 1-to-1 coaching.