Aoife Clark came from behind to pip Izzy Taylor and lead home an Oxfordshire one-two at the Equi-Trek Bramham International Horse Trials in west Yorkshire.
Taylor, from Aynho, near Banbury, led throughout the dressage and cross-country phases on Orlando.
But Clark, who is based at Middle Barton, jumped clear in the showjumping on Fenyas Elegance to finish on a score of 46.2 penalties, which piled the pressure on he rival.
Taylor was last to go, but a fence down early in her round meant that Irish-born rider Clark triumphed on the ten-year-old chestnut mare, who she won the Blenheim International on last September.
The four faults gave Taylor a final score of 46.9, and left her in second spot.
- VIDEO: Highlights from Oxford United's fiery draw with Oldham Athletic
- Michael Appleton waits to see referee after being sent to the stands in Oxford United's spicy draw with Oldham Athletic
- Oxford United 1 (Hall 54), Oldham Athletic 1 (Burgess 10)
- Oxford United v Oldham Athletic - UPDATES
- MICHAEL APPLETON COLUMN: We are hoping for some home comforts
- Kane Hemmings eyeing big push from Oxford United
- Michael Appleton faced with Oxford United defensive dilemma ahead of Oldham clash
- ANGLING: Martin Phipps leaves rivals in the cold
- TRAMPOLINING: Windrush Valley girls land regional team crown
- GYMNASTICS: Abingdon's Lili-Mae Snuggs claims top-ten spots in national championships