My Running Shoe Rotation as a Sub-20 5K Runner (Honest Mini-Reviews)
Why I Rotate Running Shoes
Iāve logged over 5,000 km across 11 different shoe models in the past few years. Not because Iām a gear obsessive (okay, maybe a little), but because rotating shoes genuinely extends their lifespan and lets me match the right tool to the right workout.
Hereās my current rotation, what Iāve retired, and honest verdicts on every shoe Iāve run in - with actual kilometres on the clock. No freebies, no sponsorships. I paid for every single pair.
My stats for context: 19:28 5K, 41:42 10K, 1:34:53 half marathon. Training 3-4 times per week with intervals, tempo runs, and long runs. I weigh about 75 kg and have a neutral gait with slight overpronation at high fatigue.
Current Rotation
Adidas Evo SL - Daily Trainer ā Current Favourite
| Spec | Detail |
|---|---|
| Kilometres logged | 274 km |
| Role | Daily easy runs, some uptempo |
| Weight | ~245g (UK 10) |
| Verdict | Top daily trainer |
| Would buy again? | Absolutely yes |
The Evo SL surprised me. I bought it on a whim after hearing good things, and it immediately became my favourite daily shoe. Itās responsive without being harsh, light without being flimsy, and has that ājust rightā cushion level where you feel the road but never feel beaten up.
The only reservation: at 245g itās maybe too light for long easy runs (16km+) where I want more cushion underfoot. For everything under 14km itās absolutely perfect. If they discontinued this shoe Iād panic-buy three pairs.
Adidas Boston 12 - Intervals & Tempo
| Spec | Detail |
|---|---|
| Kilometres logged | 624 km |
| Role | Intervals, tempo runs, threshold work |
| Weight | ~260g |
| Verdict | Great shoe, feeling worn out |
| Would buy again? | Yes, but looking to try Endorphin Speed 4 next |
The Boston 12 has been my workhorse for every hard session - 400m repeats, tempo blocks, threshold intervals. The plate gives just enough pop without being as aggressive as a full carbon racer. It handles the track and road equally well.
At 624 km though, itās showing its age. The foam has lost some bounce, the outsole is worn smooth in the forefoot, and I can feel the difference on hard intervals compared to when it was fresh. Iām planning to replace it with the Saucony Endorphin Speed 4 - I loved the Speed 3 and want to see if Sauconyās latest version holds up.
Adidas Adios Pro 3 - Long Tempo Runs & Special Sessions
| Spec | Detail |
|---|---|
| Kilometres logged | 337 km |
| Role | Long runs with tempo blocks, race-effort training |
| Weight | ~215g |
| Verdict | Love it for tempo work |
| Would buy again? | Yes |
This was my first carbon racing shoe and it changed how I think about footwear for hard efforts. I donāt race in it (I have the Vaporfly for that), but for 18-20 km long runs where I want to drop into race pace for the final 8 km, the Adios Pro 3 is magic.
The EnergyRods give a rolling, propulsive feeling that makes tempo pace feel surprisingly easy. At 337 km it still feels fresh because I only use it for specific workouts - never just easy miles.
Nike Vaporfly 4 - Race Day ā Top Speed Shoe
| Spec | Detail |
|---|---|
| Kilometres logged | 38 km |
| Role | Races only |
| Weight | ~186g |
| Verdict | Top speed shoe - testing for half marathon |
| Would buy again? | Yes, when this oneās done |
Iām only 38 km into the Vaporfly 4 because Iām saving it for race day. The difference between this and any other shoe in my rotation is immediately obvious - itās like the road pushes you forward. I wore it for a local 5K (where I ran 19:28) and the energy return is on another level.
Iām testing it for an upcoming half marathon. My concern is whether the cushion is enough for 21 km at race pace, but early test runs suggest itāll be fine. The lightweight feel and propulsion more than compensate.
Saucony Triumph 22 - Recovery Runs
| Spec | Detail |
|---|---|
| Kilometres logged | 719 km |
| Role | Recovery/easy days |
| Weight | ~295g |
| Verdict | Too soft compared to the 21 |
| Would buy again? | No - would buy the 21 again if they made it |
The Triumph 22 disappointed me. I loved the Triumph 21 (ran two pairs into the ground) and expected the 22 to be a similar experience. Instead, Saucony made the midsole significantly softer - to the point where my legs feel unstable on longer efforts.
Iāve demoted it to pure recovery jogs where the soft landing is actually welcome. But for regular easy runs? The Evo SL replaced it entirely.
Retired Shoes - Mini-Reviews
Saucony Endorphin Speed 3 (2 pairs: 716 km + 765 km) ā
Verdict: The best versatile training shoe Iāve owned. Fast enough for tempo, cushioned enough for easy runs, light enough for races. I ran my first sub-20 5K in the Speed 3. If the Speed 4 is even 5% better, itāll be my next tempo shoe.
Would buy again? In a heartbeat.
Saucony Triumph 21 (2 pairs: 435 km + 386 km)
Verdict: Top daily trainer for the ~280g cushioned category. The PWRRUN+ foam was perfectly balanced - soft enough for recovery, responsive enough for moderate pace. Both pairs retired due to upper mesh damage around 400 km, which was the only weakness.
Would buy again? Yes, but Saucony discontinued the feel with the 22.
ASICS Novablast 4 (928 km)
Verdict: Solid, reliable daily trainer. No wow factor but zero complaints either. I got 928 km out of one pair - exceptional durability. Now relegated to beach runs and short shakeouts because the cushion has gone flat at this mileage.
Would buy again? Maybe. It was fine. Not exciting, but fine.
Brooks Ghost 14 (901 km)
Verdict: My first ārealā running shoe when I started taking running seriously. Perfectly adequate for a beginner. I outgrew it as I got faster - it started feeling heavy and dead at higher paces. But 901 km from a single pair is remarkable durability.
Would buy again? No - Iāve moved past what it offers. Great beginner shoe though.
Brooks Ghost Max 2 (419 km)
Verdict: Disappointed. Bought because I wanted more cushion than the regular Ghost but found the ride mushy and unstable. My feet slide around on fast turns and the energy return is poor. Iām only running in it because I paid full price and donāt want to waste it.
Would buy again? No. The only shoe I actively regret buying.
Kiprun KD Plus (500 km)
Verdict: My absolute first running shoe from Decathlon. Needed aftermarket insoles to be comfortable. Got me through my first 5K and first 10K, so it served its purpose. Retired because I learned what good shoes actually feel like.
Would buy again? No, but no regrets either. Everyone starts somewhere.
What Iāve Learned About Shoe Rotation
After 5000+ km across these shoes, hereās what I know:
- Rotating shoes extends their life by 30-40% - the foam needs 24-48 hours to decompress fully
- You donāt need 5 current shoes - 3 is plenty (easy, speed, race)
- Expensive race shoes are worth it for race day only - but donāt train in them
- Midsole foam dies at 600-800 km for most shoes - the outsole lasting longer doesnāt mean the shoe is fine
- Shoe choice matters less than consistent training - but the right shoe for the right workout makes hard days slightly easier
My Next Purchases
- Saucony Endorphin Speed 4 to replace the worn Boston 12 for intervals/tempo
- Considering the Adidas Adios Pro 4 when the Pro 3 reaches 500 km
- Want to try the ASICS Metaspeed Sky Paris if I can find a deal
Related reading: How to Choose Running Shoes - Complete Buyerās Guide 2026
FAQ
How many shoes should a runner have in rotation?
Three is the sweet spot for most runners: a cushioned daily trainer, a lightweight speed shoe for intervals and tempo, and a carbon-plated racer for events. You can absolutely get by with two (daily + race) but rotating between at least two daily trainers extends both pairs significantly.
How many kilometres before you replace a running shoe?
Most shoes lose meaningful cushion between 600-800 km. Some show it in the foam (flat, unresponsive), others in the outsole (smooth, no grip). I track mileage on Garmin Connect and start shopping when a shoe crosses 500 km - that gives me time to break in the replacement.
Is it worth buying carbon plate shoes for training?
For daily training, no. Carbon shoes are designed for race-pace efforts and lose their magic quickly with high mileage. I save my Vaporfly strictly for races and race-simulation runs. For training, a plated trainer like the Boston 12 or Endorphin Speed gives you 70% of the benefit at half the price and much more durability.
Whatās the best daily trainer for a sub-20 5K runner?
Right now, the Adidas Evo SL. Itās responsive enough that easy pace doesnāt feel sluggish, but cushioned enough that youāre not beating up your legs. Previously Iād have said the Saucony Triumph 21, but since thatās been changed with the 22, the Evo SL is my top pick.
Do expensive shoes make you faster?
On race day? Yes - carbon shoes give a measurable 2-4% improvement in running economy. For daily training? Not really. The difference between a $130 shoe and a $180 shoe is marginal for training. Invest in a good race shoe and use something durable for everyday miles.
Check out my best daily training shoes guide for broader recommendations, or the best carbon plate racing shoes if youāre shopping for race day. If youāre just starting out, my running shoes for beginners guide is the place to start.