Training for City2Surf? A Physio’s Injury Prevention Guide

The Voltaren City2Surf is back on Sunday 9 August 2026, and more than 85,000 runners will make the 14km journey from Hyde Park to Bondi Beach. If you’re one of them, you’re now deep in the make-or-break window: the five weeks of training where most race-day dreams are either built — or quietly derailed by a niggle that turned into an injury.

Here in Wollongong, July is when we start seeing them: the runner who doubled their weekly kilometres after entering, the first-timer whose knee started aching on hills, the comeback runner whose calf “just went” on a Sunday long run.

Running injuries in race build-ups are common — but most are avoidable. Here’s what the evidence says, and what we’d tell you if you sat down in our clinic this week.

New to running? You carry the highest risk

If City2Surf is your first big running event, this section is for you. A meta-analysis published in Sports Medicine found novice runners sustain around 17.8 injuries per 1,000 hours of running — roughly double the rate of more experienced recreational runners.

That’s not a reason to pull out. It’s a reason to train smarter. New runners’ hearts and lungs adapt quickly, but bones, tendons and joints take months longer to catch up. That mismatch — feeling fit enough to run further while your tissues are still adapting — is where most build-up injuries come from.

Practical rule: build your longest weekly run gradually, keep most runs at an easy conversational pace, and resist the temptation to “catch up” on missed weeks. A 2022 systematic review in the Journal of Athletic Training found no single safe formula for increasing training load — which means sudden spikes are the thing to avoid, not some magic percentage.

The big three running injuries (and their early warnings)

A large systematic review of running injuries found the knee is the most commonly injured area (about 26% of injuries), followed closely by the foot and ankle, and the lower leg.

Runner’s knee

Pain around or behind the kneecap, typically worse on hills and stairs — and Heartbreak Hill will find it. Early sign: an ache that starts during downhill running or after sitting with bent knees. Don’t just foam roll and hope; kneecap pain responds well to targeted strength work. Our physios also check the hips and trunk, because the knee is often the victim, not the culprit.

Calf and Achilles trouble

Classic in runners over 35 and anyone returning after a break. Early sign: morning stiffness in the Achilles or a calf that tightens late in runs. Tendons love load — but only load they’re prepared for. If yours is grumbling, our leg, foot and ankle team can build you a calf program that lets you keep training.

Shin pain

The infamous “shin splints” — an overload of the shin bone and surrounding tissue that thrives on sudden mileage jumps and hard surfaces. Early sign: tenderness along the inside of the shin that eases as you warm up. Caught early, it settles fast. Ignored, it can end your race.

Strength training: the closest thing to injury insurance

If you only add one thing to your program, make it this. A landmark meta-analysis in the British Journal of Sports Medicine found strength training reduced sports injuries by roughly two-thirds and nearly halved overuse injuries — a bigger protective effect than stretching or any other single intervention.

Two short sessions a week is plenty: think calf raises, squats or split squats, hip work and some trunk strength. It also makes you faster up hills, which you’ll appreciate somewhere around the 6km mark.

Five weeks out: your sensible countdown

Weeks one to three from now are for building: your longest run should gradually reach 10-12km, with hills included — the course climbs more than most people expect. The final two weeks are for absorbing that work, not adding to it: keep running, but shorten the long runs and arrive at the start line fresh. Nothing new on race day — not shoes, not gels, not pace plans.

And if something hurts now? Five weeks is enough time to fix most niggles — but not if you spend three of them hoping it goes away. Pain that persists more than 48 hours after a run, worsens week to week, or changes your stride is worth an assessment.

The takeaway

City2Surf is a brilliant goal, and the training block matters more than the race itself. Build gradually, lift something twice a week, respect early warning signs, and Heartbreak Hill will be the hardest part of your day — not your knee.

If a niggle is threatening your race build-up, our sports physio team at Lume Physio in Wollongong can help you get to the start line strong. Book online or give us a call.