Gate 14 Fitness Journal

West Side Los Angeles

Long Beach Marathon Strength Training: How South Bay Runners Prepare

The Long Beach Marathon draws thousands of runners from the South Bay every October. Here's how coached strength training at Gate 14 El Segundo builds the leg resilience and running economy that gets you to the finish line without breaking down.

The Gate 14 Coaching Team·Strength & Conditioning Coaches, Gate 14 El Segundo·Updated May 2026·3 min read

The Long Beach Marathon is 26.2 miles of flat, fast course through downtown Long Beach, the Shoreline Village waterfront, and back. It's one of the most popular fall marathons in Southern California, drawing thousands of runners from the South Bay every October. The ones who make it to mile 22 feeling strong are almost always the ones who built a strength foundation alongside their mileage.

Gate 14 at 130 E. Grand Ave, El Segundo is where South Bay runners add that piece.

What breaks down at mile 18-22 and why

Marathon training focuses on mileage — long runs, tempo runs, easy aerobic volume. What it underinvests in is the structural resilience that absorbs 42,000+ foot strikes over 26.2 miles.

The breakdown patterns in the final six miles of a marathon are predictable:

Hamstring and glute fatigue. Hip extension weakness creates compensations that show up as the characteristic late-race shuffle. Stronger posterior chains hold running mechanics longer.

Single-leg stability degradation. Each running stride is a single-leg movement. Asymmetries in hip stability create lateral drift and energy leakage that compounds through a marathon. Single-leg strength work addresses these directly.

Ankle and calf fatigue. The calf-Achilles complex handles 2-3x bodyweight on each landing. Runners with inadequate calf and ankle strength develop the late-race foot problems that slow finishing kicks.

Strength training builds the structural capacity that holds running mechanics together across all 26.2 miles.

The research case

The research on strength training for distance runners is consistent. A 2017 meta-analysis in the Journal of Strength and Conditioning Research reviewed 26 studies and found that concurrent strength and endurance training improved running economy by 4-8% in trained runners. Running economy is the efficiency of oxygen use at a given pace — the single best predictor of marathon performance beyond VO2 max.

A 2013 Cochrane review found that strength training interventions in endurance athletes reduced lower extremity injury rates by 30-50%, depending on the protocol. Long Beach Marathon training cycles are high-volume; injury prevention is not an abstract concern.

The strength program for Long Beach marathon prep

Core movements for marathon runners:

MovementExerciseMarathon transfer
Hip hingeDeadlift, Romanian deadliftPosterior chain endurance, hamstring resilience
Single-legBulgarian split squat, step-upHip stability, lateral drift correction
Calf/ankleCalf raise, single-leg calf raiseAchilles load capacity
Core stabilityPlank, dead bug, pallof pressRunning posture in late miles
Posterior pullRows, band pullsUpper back posture across hours of running

Long Beach Marathon training calendar

Training phaseWeeks outGym volume
Base building20-16 weeks2-3x/week, progressive strength
Build phase16-10 weeks2x/week, continue progressive loading
Peak mileage10-3 weeks1x/week maintenance, reduced volume
Taper3-0 weeks1x/week very light — don't add stimulus

The principle is consistent: strength work during the mileage build, reduced to maintenance in peak weeks, gone during the taper.

The South Bay marathon community at Gate 14

El Segundo, Redondo Beach, Manhattan Beach, and Hermosa Beach all produce strong Long Beach Marathon fields. The coastal running culture in the Beach Cities drives high participation in fall road races. Gate 14 serves this community — athletes who want the gym component integrated with their endurance base.

See strength training for runners in the Beach Cities for the broader running training framework. See Gate 14 membership options or contact the Gate 14 team.

Frequently asked questions

Should Long Beach Marathon runners do strength training?
Yes. A 2017 meta-analysis in the Journal of Strength and Conditioning Research found that strength training improved running economy in distance runners by an average of 4-8%. At marathon pace, a 4% improvement in running economy is significant — it's the difference between running efficiently at mile 22 and breaking down.
When should marathon runners start strength training before Long Beach Marathon?
The best entry point is 16-20 weeks out — the same window as your base-building phase. Strength training integrated alongside your mileage build produces the best outcomes. Once you hit peak mileage weeks (18-20 miles+), reduce gym volume to 1x/week maintenance so recovery goes toward running.
What strength exercises help the most for marathon running?
Hip hinge movements (deadlifts, Romanian deadlifts) for posterior chain resilience. Single-leg work (Bulgarian split squat, step-ups) for the asymmetries that accumulate over 26 miles. Calf raises for Achilles and ankle resilience. Core work for running posture across late miles.
How far is Gate 14 from the Long Beach Marathon start?
Gate 14 is at 130 E. Grand Ave, El Segundo — approximately 15-20 minutes from downtown Long Beach. El Segundo, Redondo Beach, and Manhattan Beach runners frequently use Gate 14 as their gym base while training for Long Beach.

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