Whitcoombe House Stables is set at the foot of the impressive Lambourn gallops in a peaceful and secluded area of an historic training centre known as The Valley of the Racehorse.

Here we offer first rate facilities both on the gallops and at our stables and have a friendly, experienced team of staff to assist the trainer in giving owners the best chance of an enjoyable and successful racehorse ownership experience.




Jonathan Portman is a hands on horseman with worldwide experience and has been training flat and jumping racehorses since 1998.

Formerly as an amateur rider he rode winners of flat in France and jump races in England. He was also closely involved in the training of point to pointers and Arabians, riding them with great success.

Prior to training, Jonathan was assistant to Breeders Cup winning trainer Jonathan Pease in Chantilly, France and to Derby winning trainer Luca Cumani in Newmarket. He also worked in Australia and the USA.

Great to learn of nomination from @RacehorseOwners for Mild Illusion to the Special Achievement award. Purchased for the price of a modest Lambourn lunch she has brought great joy and Listed race victory to a large syndicate so do vote for her if you can!3 days ago
RT @Ffs_OMG: Not safe little human i’ll get the ball 🐶😍 https://t.co/6hfl9thb3q1 week ago
RT @HenryKimbell: Brilliant stuff. Well done to the @oldstoic Racing Club! 🏆🏇🏿👍🍾 https://t.co/m9ejv3sHNB2 weeks ago
RT @Equusartist: @JohnWathenBerry @jportmanracing @josephinegordo @NewmarketRace A huge positive for the sport when the likes of Mild Illus…2 weeks ago
RT @HenryKimbell: 3 wins from 8 races for Mild Illusion., ONLY once out of the first 3. A season masterminded by @jportmanracing for the @o2 weeks ago
RT @AtTheRaces: Mild Illusion - from 1,000gns purchase to Listed winner! Congrats to co-owner and Sky Sports Racing presenter Bob Cooper!…2 weeks ago
RT @JohnWathenBerry: Breeders' Cup Meeting well under way but we've already had the day's highlight provided by @jportmanracing & @josephin2 weeks ago
RT @RichieSeaver: @jportmanracing take a bow. Mild Illusion, the best bought horse of the year.2 weeks ago
RT @Louchepunter: @RacingTV @LydiaHislop @jportmanracing @NewmarketRace This is great on so many levels. @LydiaHislop’s diplomacy, Sir Bob…2 weeks ago
RT @coolmorestud: Another 2YO stakes winner for Requinto as Mild Illusion lands the Listed Bosra Sham Stakes @NewmarketRace for @jportmanra2 weeks ago

2 year old filly Mild Illusion gunned down a strong looking field in the Listed Bosra Sham Stakes over 6f. Fancied and hugely expensive fill…

2 year old filly Lethal Talent won her second race of the season when convincingly taking the novice fillies race under apprentice Tyler Sau…

2 year old filly Mild Illusion came within a short head of landing the £150k Tattersalls October Auction Stakes when finishing second to pre…

If you’re interested in having a horse in training with Jonathan, please get in touch...