Quinn Iverson & Gremlin Capture US Developing Grand Prix Championship

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Quinn Iverson and Gremlin in final of Developing Grand Prix to capture US national title. © SusanJStickle.com

WAYNE, Illinois, Aug. 24, 2025–Quinn Iverson and the 10-year-old Gremlin won the Grand Prix Sunday to capture the U.S. national Developing Grand Prix Championship.

Quinn and the Oldenburg gelding scored 71.203% for the victory after winning preliminary Intermediaire II on 70.098% to clinch the title.

Quinn of Wellington, Florida and Gremlin, owned by Billie Davidson, have competed for more than five years with success in Small and Medium Tours.

Kelly Layne, also based in Wellington and formerly rode for Australia, on Living Diamond, 10-year-old Hanoverian gelding, is reserve champion after placing second on 68.431% in the Int. II and third on 67.638% in. the Grand Prix.

Dawn White-O’Connor on Leon placed third overall after runner-up on 68.009% in the Grand Prix final.

Results:

Championship Developing Grand Prix
RankCompetitorScoreECM
1.
Quinn Iverson (USA)
Gremlin 41
71.203%71.52771.66670.416
2.
Dawn White-O’Connor (USA)
Leon
68.009%67.22269.02767.777
3.
Kelly Layne (USA)
Living Diamond
67.638%67.77767.08368.055
4.
Jaclyn Pepper-Millard (USA)
Limited Edition
67.500%69.86167.08365.555
5.
Lauren Chumley (USA)
Leeloo Dallas
65.694%62.91667.08367.083
6.
Sarah Mason-Beaty (USA)
Kanjer TC
65.509%65.41665.13865.972
7.
Stacey Hastings (USA)
Estatan LHE
64.953%62.91665.69466.250
8.
Michael Bragdell (USA)
Louisville HTF
64.722%64.16666.11163.888
9.
Marta Renilla (USA)
Olympic Star
60.787%60.83361.11160.416
10.
Lauren Chumley (USA)
Maestre
60.416%61.52759.86159.861
Find details on Equestrian Hub