Tiger Takes on the Thames Sat 10 – Sun 11 Oct 2026

184 Miles
England’s Longest River
No stopping ’til the end!

I’m Tom, known to many through family as Tiger.

On 10 October, I’ll be attempting to run the entire 184-mile length of the River Thames, from its source near Cirencester to the Thames Barrier in London, to raise money for Motor Neurone Disease research.

184 Miles Source → Thames Barrier
<40 Hours if everything goes to plan
30+ friends joining along the route
£50,000 fundraising target

The route

Running the Length of the Thames

The Thames Path runs for 184 miles from the river’s source in the Cotswolds to the Thames Barrier in London. I’m aiming to run at around 6:30 min/km, with a short walking break every 30 minutes, and to finish in under 40 hours — before sunset on Sunday.

There will be a checkpoint roughly every 13 miles, where my crew will help with food, water and kit, while friends and support runners will join me for different sections along the way. The plan is simple: keep the stops short, keep moving through the night, and no stopping until the end.

You’ll be able to follow my progress live on the tracker, with my location and updated timings shared here throughout the run. If you might like to come along for part of the route — running, cycling, or simply coming out to support — you’d be very welcome.

I’ve also set up a WhatsApp group for anyone considering joining a section, where I’ll share a few practical updates and help coordinate people closer to the day. All route and timing information will still be published here, so there’s no need to join the group to follow along.

7 marathons, back to back
1 night without sleep — hopefully not two

The tracker

This map is the plan. The tracker below goes live at 05:00 on Saturday 10 October, when I set off from the source. From then on each checkpoint shows the time I actually arrived, and the ones ahead show an estimated time that is updated as I run. A link to my live location will appear here on the day.

    Follow along

    Press and contact

    Free-to-use images and press release download here. You are welcome to contact Tom by email tom.spearman@pm.me or mobile 07857 065324.