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Intermediate Triathlon Training Plan

Choose this if swimming, cycling, and running are already part of your normal training week. Review the workload below: every workout shown comes from the plan you will receive.

Purchases open with the app launch — $24.99Review three complete weeks 7-day guarantee
Plan length
23 weeks
Complete plan
222 sessions
Starting week
9h 33m
Peak week
16h 16m

Before you buy

Inspect three actual training weeks.

Compare the opening week, the first progression, and a later training block. Every session shown comes directly from the Intermediate plan.

W01Week 1 · Establish the routineThe opening week sets the schedule with aerobic work, technique, and controlled intensity.11 sessions
Training rhythm
7 days on · 0 days off
Double days
Tue · Wed · Fri · Sun
Sport mix
4 Swim4 Bike3 Run

Monday

1 session
SWCheck-In

400/200 Check-In

1850m

250 Z1 → 400 Z3 (120 sec rest) → 200 Z3 (120 sec rest) → 1000 Z1

Tuesday

2 sessions
BIBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

RUSpeed Play

7 × 1 min Fast

51 min

5 min Z1 → 20 min Z2 → 7 × (1 min Z4 / 2 min Z1) → 5 min Z1

Wednesday

2 sessions
SWStronger for Longer

500 Strong

1500m

250 Z1 → 500 Z3 → 500 Z2 → 250 Z1

BIBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

Thursday

1 session
BICruise Control

3 × 5 min Cruise Repeats

60 min

5 min Z1 → 20 min Z2 → 3 × (5 min Z3 / 3 min Z1) → 5 min Z2 → 6 min Z1

Friday

2 sessions
SWBase Builder

Steady 1,750

1750m

300 Z1 → 1150 Z2 → 300 Z1

RURecovery

Easy 40

40 min

40 min Zone 1

Saturday

1 session
BIPower Repeats

6 × 2½ min Power Repeats

120 min

10 min Z1 → 6 × (2½ min Z4 / 5 min Z1) → 60 min Z2 → 5 min Z1

Sunday

2 sessions
SWCruise Control

5 × 100 Cruise Repeats

1500m

500 Z1 → 5 × (100 Z3 / 15 sec rest) → 500 Z1

RUBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

W02Week 2 · Begin the progressionThe weekly pattern stays familiar while selected sessions add duration or repeat work.11 sessions
Training rhythm
7 days on · 0 days off
Double days
Tue · Wed · Fri · Sun
Sport mix
4 Swim4 Bike3 Run

Monday

1 session
SWCruise Control

3 × 200 Cruise Repeats

1200m

300 Z1 → 3 × (200 Z3 / 15 sec rest) → 300 Z1

Tuesday

2 sessions
BIBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

RUPower Repeats

4 × 2½ min Power Repeats

60 min

15 min Z1 → 4 × (2½ min Z4 / 5 min Z1) → 15 min Z1

Wednesday

2 sessions
SWStronger for Longer

500 Strong

2000m

250 Z1 → 500 Z3 → 1000 Z2 → 250 Z1

BIBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

Thursday

1 session
BICruise Control

4 × 6 min Cruise Repeats

90 min

10 min Z1 → 10 min Z2 → 4 × (6 min Z3 / 3 min Z1) → 29 min Z2 → 5 min Z1

Friday

2 sessions
SWBase Builder

Steady 2,000

2000m

300 Z1 → 1400 Z2 → 300 Z1

RURecovery

Easy 45

45 min

45 min Zone 1

Saturday

1 session
BIBursts

10 × 1 min Bursts

135 min

15 min Z1 → 15 min Z2 → 10 × (1 min Z5 / 2 min Z1) → 70 min Z2 → 5 min Z1

Sunday

2 sessions
SWCruise Control

5 × 100 Cruise Repeats

1500m

500 Z1 → 5 × (100 Z3 / 15 sec rest) → 500 Z1

RUBase Builder

Steady 70

70 min

5 min Zone 1 → 60 min Zone 2 → 5 min Zone 1

W08Week 8 · See a later training blockA later week shows how longer aerobic sessions and purposeful intensity fit together.8 sessions
Training rhythm
6 days on · 1 day off
Double days
Tue · Sun
Sport mix
3 Swim3 Bike2 Run

Monday

Rest day
No workoutRecover and adapt

Tuesday

2 sessions
BIBase Builder

Steady 60

60 min

5 min Zone 1 → 50 min Zone 2 → 5 min Zone 1

RUPower Repeats

4 × 2½ min Power Repeats

45 min

15 min Z1 → 4 × (2½ min Z4 / 5 min Z1)

Wednesday

1 session
SWMix It Up

5 × 100 + 5 × 50 Mix

1750m

500 Z1 → 5 × (100 Z3 / 15 sec rest) → 250 Z1 → 5 × (50 Z4 / 20 sec rest) → 250 Z1

Thursday

1 session
BIStronger for Longer

24 min Strong

60 min

5 min Z1 → 15 min Z2 → 24 min Z3 → 11 min Z2 → 5 min Z1

Friday

1 session
SWCheck-In

400/200 Check-In

1000m

200 Z1 → 400 Z3 (120 sec rest) → 200 Z3 (120 sec rest) → 200 Z1

Saturday

1 session
RUStronger for Longer

20 min Strong

90 min

5 min Z1 → 10 min Z2 → 20 min Z3 → 50 min Z2 → 5 min Z1

Sunday

2 sessions
SWBase Builder

Steady 2,250

2250m

300 Z1 → 1650 Z2 → 300 Z1

BIPower Repeats

6 × 2½ min Power Repeats

90 min

10 min Z1 → 6 × (2½ min Z4 / 5 min Z1) → 30 min Z2 → 5 min Z1

Z1–Z5 refer to the intensity zones used in the app. Before each workout, you will see the ordered steps, duration, recovery, and available pace, power, heart-rate, or effort targets.

The complete plan

Schedule all 23 weeks in the app.

Buy the plan here, then sign into Slow N Steady on your iPhone. Schedule from a start date or work backward from race day. Follow, move, skip, or complete sessions in the app. The plan and workouts remain in your library after the schedule ends.

Purchases open with the app launch — $24.99One-time purchase · 7-day money-back guarantee