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.

Thanks to my team for preparing Invincibella to win @kemptonparkrace for Hot To Tot & Partners @rob_hornby18 @whattonmanor @lukelillingston #whitcoombewinners2 days ago
RT @whattonmanor: Well done @jportmanracing and @HotToTrotRacing @HoStud with the exciting 2yr old winner Invincibella - a £20k @Tattersall2 days ago
RT @Racing_Results_: 14:10 @KemptonParkRace1st Invincibella 8/1 2nd Sylvia's Mother 9/2A Win for @jportmanracing and @rob_hornby18Ful…2 days ago
RT @jamesyharding: Invincibella goes in second time of asking @jportmanracing @rob_hornby18 #WhitcoombeWinners @kemptonparkrace good perfor…2 days ago
RT @RCFarquhar: @HotToTrotRacing @kemptonparkrace @jportmanracing Well done to all connections, particularly the winning machine team at Wh…2 days ago
RT @hub_horse: @HotToTrotRacing Congratulations to all connections and @jportmanracing with your winner INVINCIBELLA! From all at Horse Rac…2 days ago
RT @RaceHorseTrader: Congratulations to members of the @HotToTrotRacing Syndicate with their winner INVINCIBELLA @kemptonparkrace trained b…2 days ago
RT @HoStud: Invincibella becomes the latest 2yo winner for Kodiac, stepping up from her debut to win well for @HotToTrotRacing @jportmanrac2 days ago
RT @OwenDavin: Good start 2 the week for in form trainer and jockey @jportmanracing and @rob_hornby18 @kemptonparkrace with a gritty win 4…2 days ago
RT @HotToTrotRacing: 🍾 WINNER 🍾 Invincibella wins on her second start @kemptonparkrace for @jportmanracing. Continuing a fantastic run of w…2 days ago

2yo filly Invincibella won the novice auction race over 5f under a good ride from Rob Hornby for the enthusiastic Hot To Trot Partnership. T…

4 year old gelding Orin Swift just lost out in a tight photo finish having looked like winning the 1m5f handicap under regular rider Rob Hor…

Winner at Ffos Las 3yo filly Homing Star won the 1m4f handicap for owner breeders Simon and Rosalind Emmet under a typically never say die r…

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