What do people think of JSET?

JSET has helped all kinds of runners achieve their running goals. From those just beginning their running journey to runners aiming to win races JSET provides an engaging and fun way to train. 

Here’s just a few stories of how JSET has helped runners achieve goals and improve their running.

There are too many things I want to say here. The JSET dashboard is incredible. It’s smart, accurate and Josh was there every step of the way to provide guidance and reassurance when I felt like things were not going well with my training. On top of that, you will never have to show up to another race and guess what time you think you are capable of running that day. It’s not the cookie cutter prediction that Garmin or Polar will throw at you. On race day, JSET said I was going to run a 2:56 and Polar said I was going to run 3:10. I ran 2:55:42. The system works. Thanks for everything Josh.

Anthony ran his fist marathon in 4:30. In his second marathon, after working with JSET, he achieved 2:55.

JSET is science-based training which is specific to my fitness level and takes into account fitness improvements coupled with input from an inspirational and knowledgeable coach! It is flexible and with no fixed daily mileages and speed, it fits right in with my busy working life. Running is a lifelong endeavour and improvements will come with time – JSET has proven this to be true. I am running mileages and speed that I never thought I had it in me!

With awesome dedication and consistency Trixie has managed to show brilliant improvements.

Rossen ran a 20 minute personal best, achieving his goal of sub3:30.

I trained with Josh and his program JSET for the 2019 Berlin Marathon and without a doubt it has been one of the most rewarding and fun running programs that I’ve done in my life!

Firstly and most importantly working with Josh brought back the pure love and enjoyment of running.

Over the last couple of years I was struggling with injuries and wasn’t really progressing. Every training run was a constant race with my watch and ultimately I wasn’t getting faster and better. About six months ago I discovered low heart rate training and I heard an interview with Josh where he explained his philosophy on training and racing. It made so much sense to me and I decided to give it a shot.

Making my own running schedule and tracking my progress through the graphs that Josh offers has been so much fun. Being able to see how my marathon time prediction changed based on my runs was very motivating and knowing exactly how I was going to perform time wise on the day of the race was priceless.

Josh was also really helpful by responding quickly to all my questions. In Berlin I shaved 20 minutes off my previous PB and for a first time I felt really strong and confident about a race. I definitely recommend JSET to anyone who is looking for a program that is not only fun and flexible but also easily customizable to everyone’s running goals. I can’t wait to start training again with Josh for my next race!

It was great to follow such an adaptable and personalised plan. Training plans I’ve followed in the past have been very rigid, which can result in just giving up when life takes over and the training falls behind. Having the weekly JSET training target automatically adapt to the training achieved in past weeks means that the target remains realistic and achievable.

Josh is a great mentor who is happy to tailor your needs and program to suit you and your goals. He is very knowledgeable and responsive. The dash is a great tool which helps me assess not only my training load, but my HR fitness instantly after every run. The long term trends it shows also offer useful insights into my training cycles and what works and what does not work.

Russ achieved a 25min PB in his first marathon after starting with JSET, and he's still improving.

The simplicity of the JSET dash and associated data allows me to ‘just run’. I can run at varying intensity, towards my weekly goal. The effect of improvement over time, is really gratifying. With JSET and Josh’s coaching and encouragement, I went from a 3:38 to a 3:13 marathon in just 4 months. I am in another training cycle now and enjoying similar progression, with fitness and a sense of freedom in running. JSET allows you to work towards a goal race time on a given date, or based on your most recent efforts on a rolling weekly basis. I have worked with both formats and find them to be equally useful for goals, be they specific race goals or, for example, an extended period of lower-intensity running.

Although Gavin’s marathon was cancelled due to COVID, he still ran an awesome half marathon time!

I have run a few marathons using conventional training plans and being relatively successful for a sub 4 hr runner over the years. I then came across JSET and Josh’s uniquely tailored approach to training. This appealed to me as I’d just started low HR training, which suited my new approach to running.


JSET provides you with a brilliant platform to visually see how you’re doing each week. At the start of each week, your weekly mileage is clearly shown at current pace. If your pace increases the mileage comes down slightly and the opposite if you slow down.


What’s appealing is that the wheel fills up as you run, so you can see exactly how well you are progressing, day to day. Once your week is complete, the wheel is full and you can put your feet up with a well earned rest and a pat on the back. The visual system is combined with Josh’s wealth of knowledge and feedback, giving you a personalised program to achieve you goals.


Josh will give you encouragement and advice along the way, so that each week is different and he can provide insight into what is going well and not so well, by looking at your graphs projected by the system.


I did a 20 week marathon program and although unfortunately was unable to run the Spring marathon 2020 due the lockdown, I know that I am the fittest I have ever been. I ran the Cambridge Half Marathon equalling my PB which was run when I was 17 – 26 yrs go! I’m hoping to run another marathon again next year and will definitely use JSET.


I really could not believe how running slowly could be enjoyable and turn you into such a machine. In training I was doing 90 mile weeks without any problem whatsoever. Then when you wish to run fast, there is this incredible fitness under you that you don’t even realise!
I would highly recommend JSET, the most valuable and focused marathon training that I have ever done.

I’ve made more progress with JSET in three months than I have on my own in years.

After using JSET and training with consistent dedication Chris ran a sub3 marathon for the first time ever.