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.

RT @stblmtrcng: TOP 10 Flat Trainers w/ +50 Runners in UK 2018Based on ROI %1. @jportmanracing 106% 2. @PKirbyRacing 78% 3. R Fell 44%…5 days ago
RT @ThoroInsider: Wishing a happy birthday to one of the truly exceptional trainers & classy individuals in the horse racing industry - Gra…5 days ago
RT @maryannwall1: My lovely Tormakeady (Katie) had a wonderful educational outing @salisburyraces todayI just 💙 the little lady https://…1 week ago
RT @MRobbo1020: @jportmanracing @NewburyRacing @thelambournta Well done with Orin Swift. Great ride from @rob_hornby18 #winner1 week ago
A winner and two thirds @NewburyRacing @rob_hornby18. Thanks team. Congrats to connections #whitcoombewinners1 week ago
RT @NewburyRacing: A trilling finish to our fourth race as Orin Swift for @jportmanracing just edges out Sky Marshal https://t.co/ztLxvgPWsY1 week ago
RT @JamesStevens180: Another winner! @jportmanracing has started this year with a 💥!Orin Swift the narrowest winner at Newbury! A 14th wi…1 week ago
RT @SportingChron: Newbury Races ... A trilling finish to our fourth race as Orin Swift for @jportmanracing just edges out Sky Marshal htt…1 week ago
Four runners @NewburyRacing . Good luck to their connections. Thoughts on @thelambournta website.1 week ago

  Four year old gelding Orin Swift won the 12f handicap for owners John and Jill Habershon Butcher. This was his first run of the seaso…

It was Portman At The Double thanks to Mancini (Laurence Bellman) and Ashazuri (RWH Partneship) both ridden by Richard Kingscote. Mancini is…

4yo filly Hewouldwouldnthe won the 2m handicap under a perfectly executed ride from our long serving amateur rider James Harding. This was a…

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