Easy Run Mistakes Runners Make

Strava average pace looks like a PR recovery day. Average HR finished in Zone 3. That is not easy — it is junk tempo with a recovery label. Easy runs fail when they become moderate. The fix is anchors (HR, talk test, intent), not more motivation.

Mistakes That Quietly Flatten Training

• Feel without a ceiling: fatigue skews RPE — pair feel with an HR cap from the Zone 2 Calculator.
• Segment hunting: mute segments on recovery days.
• Faster partners: group pace ≠ your Zone 2.
• Average-pace worship: hills and heat inflate HR at “easy” pace.
• Wrist HR reading low: optical can under-read — validate with a chest strap (HR accuracy).
• Ignoring context: heat, hills, poor sleep raise cost — slow down (sleep & performance).

Set ranges with the HR Zones Calculator; see Easy Run Pace Guide.

Worked Audit: 40-Mile Week

Athlete logs ~40 miles: Mon “easy” 8 mi @ 7:40/mi avg HR 158; Wed intervals; Thu “easy” 7 mi @ 7:35/mi avg HR 156; Sat long 14 mi drifting to Zone 3 after mile 8. Hard + moderate time exceeds ~35% of the week. Quality Wednesday feels flat. Reset: two strict HR-capped weeks (ceiling 148) before adding tempo back. That is polarized training restored — see 80/20.

How You Know You’re Doing It

• Easy runs finish Zone 3 average HR
• Hard days feel flat; resting HR creeps up
• Talk test fails on “recovery” days

Short Hard Is Not Easy

A 25-minute run at 7:20/mi with gasping finish is not recovery just because it is short. Easy can be long; hard can be brief. Protect at least one fully conversational day after intervals so the next quality session has somewhere to come from.

Decision Rule

If after seven days hard + moderate running time exceeds ~25–30% without a race-week reason, cut pace until easy days sit under your Zone 2 ceiling for the next two weeks. If Zone 2 time already dominates, keep one quality day sharp instead of adding “kinda hard” miles.