EVERY SECOND COUNTS: MY JOURNEY TO A SUB-16 5K

Published: 01/07/2026 | By: Alex Courbat

Breaking the 16-minute barrier for the 5K is as much a mental hurdle as it is a physical one. In this piece, our running ambassador Freeman Williams explains why – and how he did it.

When you are chasing a time like a sub-16 5K, every single second counts. You can’t just rely on raw talent or hope for a good day; you need a structured, deliberate approach to your training block, recovery, and race-day execution. 

Looking back at my latest training block, my approach to success didn’t come down to a single workout. The foundation of my sub-16 5K was consistency. 

A common mistake many runners make when targeting a 5K PB is thinking every session needs to be an all-out, lung-burning track workout (I’ve been there, don’t worry). 

In reality, the 5K is still predominantly an aerobic event. My week was structured around three pillars: easy aerobic base runs, sustained tempo efforts at threshold pace, and sharp weekly track sessions. High-volume, easy-paced runs kept my engine ticking over, and I made sure my easy days were truly easy to allow my muscles to rebuild. My tempo efforts trained my body to clear lactate efficiently, which is crucial for surviving the final two kilometres of a 5K (massive emphasis on survive). 

Finally, interval sessions – like 800m repeats at goal 5K pace – built the neuromuscular memory of what running a 3:11/km pace actually feels like. I actually increased these to mile repeats to really test my resilience at this pace. 

Of course, you don’t get faster during the workout; you get faster when you recover from the workout. We must give our bodies time to absorb the stimulus you’ve earned during training. 

As the intensity of my training block ramped up, I had to treat my recovery with the same respect as my speed work. This meant prioritising sleep to let my body do its natural repair work, dedicating time post-run to foam rolling and mobility, and focusing on mental reframing. 5K training can be really mentally demanding, so this was key. 

I had to accept that not every run would feel amazing. Some days my legs felt like lead, but showing up and putting in the easy miles is what builds the mental resilience needed for race day. 

When race day finally arrived, the physical work was done. The goal was simply to execute the game plan. For a 5K, I divide the race into three distinct mental phases. 

In the first two kilometres, it is incredibly easy to let the adrenaline take over and spike your heart rate. I locked directly into my target pace immediately, with some room for error. The next two kilometres were when the difficult part was going to begin, but I always knew this was coming. It was a matter of making sure I had something left in the tank for the final section. 

I focused on maintaining a quick cadence, keeping my shoulders relaxed, and reminding myself of the hard track sessions from weeks prior. For the final kilometre, it is purely psychological. I focused on kicking with my arms, picking up my knees, and driving all the way through the line. I managed a final 1,500m averaging 3:08/km. 

Crossing the finish line and seeing the clock stop at a new personal best made every early morning, wet track session, and foam-rolling hour entirely worth it. PBs are built long before race day. Trust the process, dial in your training, stay consistent, and the results will follow. 

THE TRAINING BLOCK BEHIND IT (12-WEEK STRUCTURE) 

If I break the block down, it wasn’t complicated. It was just consistent. The entire 12 weeks sat on three pillars: aerobic base, threshold strength, and race-specific pace work. Everything else existed to support those. 

Each week followed the same rhythm: 

2 x easy aerobic runs (kept genuinely easy)  

1 x long run (steady aerobic development)  

1 x threshold or tempo session  

1 x track or race-pace session  

1–2 × recovery or rest days  

Nothing flashy. Just repetition done well.