The Kirkwood Method — Adapted for High School

12-Week Outdoor
1600m Training Plan

The same periodized, threshold-first principles Craig Kirkwood uses to develop world-class milers—scaled to a high school training load that actually builds careers instead of ending them.

HS Athletes 30–45 Miles/Week Single Daily Sessions No Doubles Outdoor Track Season

What This Plan Is Built On

6 Rules That Don’t Change

01
Periodized Volume
More in base phase. Less when racing. Peak mileage held static all season produces stale athletes in March.
02
Threshold First
80% of weekly volume at easy pace. The remaining 20% is controlled threshold work—not all-out VO2 max hammering.
03
One Session Per Day
No doubles. One quality session, genuine recovery between hard days. Chronic fatigue is not fitness.
04
Plyos After Track
Plyometric work is stacked immediately after quality sessions—not on separate gym days. One hard block, not two.
05
No Traditional Weights
Core stability and plyos only. Heavy resistance training at 16 can compromise running economy and raise injury risk.
06
Recovery Weeks
Every 4th week is a deliberate pullback—around 70% of normal load. This is where adaptation actually sets in.

Reference

Intensity Zones & Target Paces

Easy Run
Cross-Train
Long Run
Key Threshold Session
Race / Time Trial
Rest

T-Pace (Threshold Pace): The pace you can sustain for roughly 60 minutes in a race. Comfortably hard—you can speak a few words, not full sentences. This is the engine of the plan. RP (Race Pace): Your 1600m goal pace, split per 400m interval.

1600m Goal Easy Pace
(per mile)		 T-Pace
(per mile)		 T-Pace
(per km)		 RP per 400m RP per 800m
4:006:10–7:005:05–5:203:10–3:2060.02:00
4:156:25–7:155:20–5:353:19–3:2863.82:08
4:306:40–7:305:35–5:503:28–3:3767.52:15
4:456:55–7:455:50–6:053:37–3:4671.32:23
5:007:10–8:006:05–6:203:47–3:5675.02:30
5:157:25–8:156:20–6:353:56–4:0678.82:38
5:307:40–8:306:35–6:504:06–4:1582.52:45

All threshold paces are approximate. On hot or humid days, add 10–20 seconds per mile and focus on effort, not splits. Your threshold is a feeling, not a number on a watch.

Phase 1 — Weeks 1–4
Aerobic Foundation
Build your aerobic base. Introduce threshold work at controlled effort. Establish weekly rhythm before adding load. Every session should feel sustainable—nothing heroic yet.
28–36
Miles/Week
80/20
Easy/Hard Split
4–5×
Sessions/Day
Week 01
Base Est. 28–32 miles
Mon Easy
5 miles easy
+ Core circuit
Tue Key
4 × 1000m @ T-pace
90 sec jog recovery
+ 10 min plyos after
Wed Cross
40–50 min easy cycling
Or easy 4-mile run
Thu Tempo
20 min continuous tempo
Just below T-pace
+ 10 min plyos after
Fri Easy
3 miles easy
Or full rest if fatigued
Sat Long
8 miles easy
Comfortable pace, no watch pressure
Sun Rest
Complete rest
Tuesday — Key Session
4 × 1000m @ T-Pace
Structure
  • 12-mile warm-up at easy pace. Four strides on the straight.
  • 24 × 1000m at T-pace. 90 seconds easy jog recovery between each.
  • 31.5-mile cool-down. 10 minutes plyo circuit immediately after.
Coaching Note
What you’re after The first rep should feel almost too easy. If rep 4 forces you to work hard to hold pace, the pace is right. If rep 1 already feels hard, you’re going too fast. Kirkwood’s rule: controlled, rhythmic, repeatable.
Week 02
Base Est. 30–34 miles
Mon Easy
5 miles easy
+ Core circuit
Tue Key
5 × 1000m @ T-pace
90 sec jog recovery
+ 10 min plyos after
Wed Cross
45–50 min easy cycling
Or easy 4-mile run
Thu Intervals
4 × 600m @ T-pace
+ 2 × 300m slightly faster
2 min recovery each
+ 10 min plyos after
Fri Easy
3 miles easy
Or full rest
Sat Long
9 miles easy
Sun Rest
Complete rest
Tuesday — Key Session
5 × 1000m @ T-Pace
Structure
  • 12-mile warm-up. Four strides.
  • 25 × 1000m at T-pace. 90 seconds easy jog between each.
  • 31.5-mile cool-down. Plyos immediately after.
Coaching Note
Adding one rep, not intensity Same pace as Week 1. Same recovery. Just one more rep. This is deliberate—Kirkwood adds load incrementally without raising intensity. The adaptation happens in the recovery days that follow, not during the session itself.
Week 03
Base Est. 32–37 miles
Mon Easy
6 miles easy
+ Core circuit
Tue Key
6 × 900m @ T-pace
75 sec jog recovery
★ The Kirkwood signature. + Plyos after.
Wed Cross
45–50 min easy cycling
Or easy 4-mile run
Thu Tempo
25 min continuous tempo
Steady, controlled
+ 10 min plyos after
Fri Easy
3 miles easy
Sat Long
10 miles easy
Max long run distance in this plan
Sun Rest
Complete rest
Tuesday — Key Session
6 × 900m @ T-Pace — The Kirkwood Signature
Structure
  • 12-mile warm-up. Four strides.
  • 26 × 900m at T-pace. 75 seconds easy jog recovery.
  • 31.5-mile cool-down. Plyos immediately after.
Why 900m?
Not arbitrary 900m is long enough to reach a true threshold stimulus but short enough to hold quality across all 6 reps. It sits in a sweet spot between aerobic development and neuromuscular efficiency. Sam Ruthe does this workout. The rep length forces patience—you can’t sprint it, you have to settle.
Week 04
Recovery Est. 22–26 miles
Mon Easy
4 miles easy
+ Core circuit
Tue Key
3 × 1000m @ T-pace
2 min jog recovery
Reduced volume, maintain quality. + Plyos.
Wed Cross
40 min easy cycling
Thu Fartlek
30 min fartlek
30 sec on / 90 sec off × 8
Relaxed, not forced
+ 10 min light plyos
Fri Rest
Complete rest
Sat Long
7 miles easy
Pulled back deliberately
Sun Rest
Complete rest
⚠ Recovery week. The adaptation from weeks 1–3 sets in here. Do not chase mileage. If you feel surprisingly good, that’s the plan working.
Phase 2 — Weeks 5–8
Threshold Development
Push the lactate threshold higher. Introduce the first taste of race-pace territory on Thursday sessions. Volume ticks up slightly. One recovery week at Week 8 before sharpening.
33–42
Miles/Week
RP Intro
Week 6 Onward
Week 05
Development Est. 33–38 miles
Mon Easy
6 miles easy
+ Core circuit
Tue Key
6 × 1000m @ T-pace
90 sec jog recovery
+ 10 min plyos after
Wed Cross
50 min easy cycling
Or easy 5-mile run
Thu Intervals
3 × 1 mile @ T-pace + 10 sec/mi
3 min jog recovery
Sub-threshold, controlled. + Plyos.
Fri Easy
4 miles easy
Sat Long
10 miles easy
Sun Rest
Complete rest
Tuesday — Key Session
6 × 1000m @ T-Pace
Structure
  • 12-mile warm-up. Four strides.
  • 26 × 1000m at T-pace. 90 seconds jog recovery.
  • 31.5-mile cool-down. Plyos immediately after.
Coaching Note
Volume jump is bigger than it looks You’ve gone from 5 × 1000m (Week 2) to 6 × 1000m, but total quality volume has increased significantly across the phase. Reps 5 and 6 should require focus to hold pace. That’s the signal you’re in the right zone.
Week 06
Development Est. 36–42 miles
Mon Easy
6 miles easy
+ Core circuit
Tue Key
4 × 1200m @ T-pace
2 min jog recovery
+ 10 min plyos after
Wed Cross
50 min easy cycling
Or easy 5-mile run
Thu Race Pace
5 × 600m @ RP + 5 sec
2 min recovery
First RP-territory work. + Plyos.
Fri Easy
4 miles easy
Sat Long
10 miles easy
Sun Rest
Complete rest
Tuesday — Key Session
4 × 1200m @ T-Pace
Structure
  • 12-mile warm-up. Four strides.
  • 24 × 1200m at T-pace. 2 minutes jog between each.
  • 31.5-mile cool-down. Plyos immediately after.
Coaching Note
Longer rep, same intensity 1200m forces sustained commitment at threshold. The 2-minute recovery is enough to reload but not enough to fully reset. By rep 4, you should feel genuinely worked—not destroyed. Thursday adds the first exposure to race-pace territory this week.
Week 07
Development Est. 36–42 miles
Mon Easy
6 miles easy
+ Core circuit
Tue Key
5 × 1000m @ T-pace, 75 sec rec
then 4 × 200m fast & loose
2 min rec each 200m
Flying 200s—relaxed, not all-out. + Plyos.
Wed Cross
50 min easy cycling
Thu Race Pace
6 × 400m @ RP + 2 sec
+ 4 × 200m @ RP
90 sec recovery between all
+ 10 min plyos after
Fri Easy
3–4 miles easy
Sat Long
10 miles easy
Sun Rest
Complete rest
Tuesday — Key Session
5 × 1000m T-Pace + 4 × 200m Flying
Structure
  • 12-mile warm-up. Four strides.
  • 25 × 1000m at T-pace. 75 sec jog recovery.
  • 3Short break — walk 3 minutes, then 4 × 200m fast and smooth. 2 min recovery each.
  • 41.5-mile cool-down. Plyos immediately after.
Coaching Note
The 200s are not sprints Kirkwood calls these “flying 200s.” They’re fast—well below race pace—but never strained. Think 90% effort with relaxed mechanics. The combination of sustained threshold work followed by shorter, fast running is a neuromuscular pattern the race will demand. You’re teaching the body to shift gears after accumulated fatigue.
Week 08
Recovery + Assessment Est. 24–28 miles
Mon Easy
4 miles easy
+ Core circuit
Tue Key
4 × 800m @ T-pace
90 sec jog recovery
Reduced volume, stay sharp. + Plyos.
Wed Cross
40 min easy cycling
Thu Assessment
3 × 400m @ goal RP
5 min full recovery each
Note your splits. Are they honest? + Light plyos.
Fri Rest
Complete rest
Sat Long
7 miles easy
Pulled back deliberately
Sun Rest
Complete rest
📋 Thursday assessment: 3 × 400m at your current goal race pace, with full 5-minute recovery. If you can’t hold goal pace on all three, adjust your goal. If they feel easy, you may have undersold yourself entering Phase 3.
Phase 3 — Weeks 9–12
Race Sharpening & Taper
Volume drops. Race-pace work dominates the key sessions. The engine is built—now sharpen the blade. Week 12 is a full taper into your target race.
20–34
Miles/Week
RP Focus
Primary Stimulus
Week 09
Sharpening Est. 28–34 miles
Mon Easy
5 miles easy
+ Core circuit
Tue Key
5 × 600m @ RP – 2 sec
2:30 recovery
+ 4 × 200m @ RP – 3 sec
90 sec recovery
+ 10 min plyos after
Wed Cross
40 min easy cycling
Or easy 4-mile run
Thu Mixed
3 × 1000m @ T-pace
+ 4 × 200m fast & loose
90 sec recovery
+ 10 min plyos after
Fri Easy
3 miles easy
Sat Tune-Up
800m or mile race or easy 8 miles
Race if available. Don’t force the race option.
Sun Rest
Complete rest
Tuesday — Key Session
5 × 600m + 4 × 200m at Race Pace
Structure
  • 12-mile warm-up. Six strides, last two at close to RP.
  • 25 × 600m at RP minus 2 seconds. 2:30 recovery between each.
  • 33-minute walk break, then 4 × 200m at RP minus 3 seconds. 90 sec recovery.
  • 41-mile cool-down. Plyos immediately after.
Coaching Note
Slightly faster than race pace “RP – 2 seconds” means 2 seconds per 400m faster than your goal race split. At this volume it’s not sprint work—it’s race-sharpness work. The goal is to make race pace feel familiar and comfortable, not to exhaust yourself before the competition block.
Week 10
Competition Est. 26–32 miles
Mon Easy
5 miles easy
+ Core circuit
Tue Key
3 × (600m + 400m)
600m @ RP, 90 sec
400m @ RP – 2 sec
4 min between sets
+ 10 min plyos after
Wed Cross
40 min easy cycling
Or easy 4-mile run
Thu Mixed
2 × 1000m @ T-pace
+ 6 × 200m @ RP
90 sec between 200s
+ 10 min plyos after
Fri Easy
3 miles easy
4 × 100m strides
Sat Race
Target race
or major tune-up
Race with tactical intent—position well, close hard.
Sun Rest
Complete rest
Tuesday — Key Session
3 Sets of (600m + 400m) at Race Pace
Structure
  • 12-mile warm-up. Six strides.
  • 2Set 1: 600m at RP → 90 sec recovery → 400m at RP – 2 sec. 4 min between sets.
  • 3Sets 2 & 3: Repeat. Last 400m of each set should feel like a race close.
  • 41-mile cool-down. Plyos immediately after.
Coaching Note
Teach the close The 400m finishing each set is a closing kick rehearsal. You’re tired from the 600m—hold form, hold pace. This is exactly the physiological and psychological situation you’ll face in the final lap of the race. Practice it here, when the stakes are low.
Week 11
Sharpening Est. 22–27 miles
Mon Easy
4–5 miles easy
+ Core circuit
Tue Key
4 × 400m @ RP
3 min full recovery
+ 6 × 200m @ RP – 2 sec
90 sec recovery
+ 10 min plyos after
Wed Cross
35 min easy cycling
Thu Sharpener
3 × 600m @ T-pace
+ 4 × 150m fast & relaxed
Full recovery on 150s
+ Light plyos (5–8 min only)
Fri Easy
2–3 miles easy
Sat Rest or Easy
Rest or easy 5 miles
Rest if a race is coming next week
Sun Rest
Complete rest
The volume reduction this week is intentional. You’re not losing fitness—you’re letting the body consolidate 11 weeks of accumulated aerobic development. The urge to add more is strong. Resist it.
Week 12
Taper & Peak Est. 16–20 miles
Mon Easy
4 miles easy
+ Core circuit
Tue Key
4 × 400m @ RP
4 min full recovery
+ 4 × 200m fast & smooth
2 min recovery
+ Light plyos (5 min only)
Wed Cross
30 min easy cycling
Or easy 3-mile run
Thu Sharpener
2 × 600m @ RP
5 min full recovery
+ 4 × 100m strides
Staying sharp. No heroics.
Fri Easy
2 miles easy
4 × 100m strides
Keep legs fresh. Short.
Sat Rest
Complete rest
Standard pre-race meal tonight
Sun Race Day
TARGET RACE
1600m / Mile
All 12 weeks for this.
Race Day
Race Strategy — Run Like Sam
The Race Plan
  • 1Lap 1: Controlled. Get position without burning matches. If you’re in 2nd through 4th at the bell, you’re exactly where you want to be.
  • 2Laps 2–3: Settle into race rhythm. Shoulders down. Stay on the shoulder of the person you want to beat. Do not surge early.
  • 3200m to go: Now. Commit. Push out to clear a runner if needed and go. Everything the last 12 weeks built is available right now.
Ruthe’s Rule
Patience wins races Sam Ruthe ran 28.97, 28.56, 28.84, 29.20, 28.68, 28.16, 28.12, 28.38 for his 8 laps of 3:48. Remarkably even until the close. He never led. He never panicked. Your temptation will be to go early. Don’t. The athlete who runs the most even laps almost always wins.

Supplemental Work

Plyo Circuit & Core Routine

These two circuits are non-negotiable components of the plan. The plyos go immediately after quality track sessions—not on their own day. The core circuit follows easy Monday runs. Neither should take more than 12 minutes.

🦘
Post-Track Plyo Circuit
  • Bounding (alternating legs)
    Drive through hip, land softly
    3 × 10
  • Two-Foot Hurdle Hops
    6 cones or marked lines, minimal ground contact
    3 × 6 hops
  • Single-Leg Hops (each leg)
    Forward hops, land stable, no wobble
    2 × 8 each
  • Ankle Stiffness Hops
    Minimal knee bend, rapid ground contact
    2 × 15 sec
  • Standing Broad Jump
    Max effort, stick the landing
    2 × 5
  • Calf Raises (single leg)
    Full range, controlled eccentric
    2 × 15 each

Total time: 8–12 minutes. Quality over reps. Stop any exercise if form deteriorates. In weeks 11–12, reduce to 5 minutes—just bounding and ankle hops.

🧱
Monday Core Circuit
  • Dead Bug
    Opposite arm/leg extension. Keep lower back flat.
    3 × 10 each
  • Plank Hold
    Elbows under shoulders. No sag, no pike.
    3 × 30–40 sec
  • Side Plank (each side)
    Hip up, body straight
    2 × 25 sec each
  • Bird Dog
    Slow and controlled. No rotation.
    3 × 8 each
  • Glute Bridge
    Squeeze at top. Don’t rush.
    3 × 12
  • Copenhagen Plank
    Hip adductor stability. Use a bench or partner.
    2 × 20 sec each

Total time: 8–10 minutes. These exercises target the hip, glute, and trunk stability that deteriorates during growth spurts. Don’t skip the Copenhagen plank—hip adductor injuries are the most common in developing milers.

A Final Word

What This Plan Can’t Give You

This plan gives you the workouts. What it can’t give you is the 30-athlete training group in Tauranga, the Olympian training partner who makes threshold sessions feel like a team effort, or the physiotherapist monitoring your gait as your body changes. Build what you can around you.

Find someone faster than you to train with—even once a week. Standardize your pre-race meal. Go to bed early. Let the easy days be genuinely easy. When the plan says recovery week, take it. The adaptation happens in the rest, not the work.

Kirkwood’s biggest takeaway: “Consistency beats hero workouts.” Twelve weeks of honest, controlled work on this plan beats three weeks of heroic effort followed by two weeks of injury every single time. Show up, do the work, and let the process be the point.