Putney, England (United Kingdom) - "Thames Path Ultra Challenge". England’s greatest river provides a fantastic backdrop for an unforgettable challenge. Over 3000 adventurers will join the Putney Bridge start, and the full 100km route heads upstream to Henley along the famous Towpath. It’s through Richmond, Hampton Court, Runnymede, and Windsor, with some wonderful scenery to a riverside finish line. With three quarter, half, quarter distance options also available – plus the separate 25km ‘Thames Bridges Trek’ & ‘The Moonlight 10 Walk’ through Central London as part of the weekend ‘festival’ – there’s a Thames Challenge for everyone! www.ultrachallenge.com/thames-path-challenge

Orpington, England (United Kingdom) - "BH5K Naked Run (September)". DARE2BARE and challenge yourself to an unforgettable and liberating nude running experience. Our 5K naked trail run takes you on a scenic adventure around our beautiful 50-acre private grounds, winding through peaceful woodland paths. Our ankle tag chip-timing system accurately records your time and race position as you finish. On registration you’ll receive a lightweight, returnable ankle tag. There's a naked 5K medal for everyone who completes the course and personalised printed certificates are available on request showing your race times and finishing position.  Our latest design trophies await those who finish in the first three ladies, first three men age 50+, first three ladies age 50+ and first three overall race winners. After the run, stick around for the afternoon and make the most of a carnival atmosphere with music and stalls. Enjoy our fantastic facilities — relax in our 18 meter heated covered swimming pool, unwind in the sauna, or freshen up with our hot showers (20p). The Teapot Café serves hot food, and our licensed outdoor bar will also be open, perfect for refueling and socializing. If the weathers on our side, the fun will continue with additional afternoon games. Stay for the evening and join us for THE GLOW CRAZY NRG PARTY – £5 entry fee which includes 1 free drink, open to all runners and non runners. This year’s naturist neon party goes high tech in our newly refurbished Cow Shed, joining forces with the NRG Party team for an immersive evening packed with light, colour, and technology with sounds from 3 top DJs. Get creative and bring glow sticks, body paints and any accessories that light up. Find out why so many people return to the BH5K year after year! RACE ENTRIES CLOSE AT 3 PM ON Friday 11th SEPTEMBER — BOOK NOW AND DON’T MISS OUT! www.naturistfoundation.org/5k-run

Flintshire, Wales (United Kingdom) - "Machlud Trail Race". Skirting the beautiful Clwydian Hills, the route meanders above the Vale of Clwyd before runners start to climb up onto the Offa’s Dyke footpath which brings them finally to the summit of Moel Famau. Covering a full half marathon distance of 13.1 miles / 21.1 km the route includes 2500ft/750m of ascent. The race will start and finish in the village school with runners setting off with staggered start times with the idea being that all runners will be on the slopes of Moel Famau at sunset – note: sunset not guaranteed – we are in Wales after all… in September! https://machlud.org

Richmond, England (United Kingdom) - "Richmond Run-Fest". Uber Boat by Thames Clippers Richmond RUN-FEST in south west London consists of 4 different distanced events, 7,000 runners, a music stage and a fitness expo. We are known for our amazing male & female cut tech T-shirts and our chunky triangle medals. https://run-fest.com/events/about-richmond-runfest

Dorking, England (United Kingdom) - "Bacchus Marathon & Half Marathon". Set in the stunning surroundings of Denbies Vineyard near Dorking in its 10-year history, Bacchus has rapidly become a must-do event on the UK running calendar. It is a very different race experience to other marathons or half-marathons. Most of the field turn out in fancy dress, there are numerous bands playing around the course but it's the drinks stations on route that separate Bacchus from other running races and epitomise the spirit of the event. You will have the chance to sample six fabulous English wines, at five drinks stations along the course with two wines served at the last station, accompanied by food and soft drinks too. If you are running the marathon you go around twice which means 12 wines! There's more food and drink waiting for you at the finish at the post-race hog roast where the party carries on long into the evening. Of course you can run the course quickly - or at least as quickly as the hills will allow - but if you really want to enter the spirit of Bacchus, put your watch away, take some time to enjoy the countryside, sip the wine and (if you have the energy) dance to the bands and live music dotted around the route. The field is limited to 3,000 entries across the three distances and it usually sells out so don't wait too long to enter. www.run-bacchus.com