As a foal in December 2019 the filly was consigned Haras du Grandcamp to the Arqana Deauville Breeding Stock Sale and was bought for €140,000 by Bloodstock Management Services.
Ridden by Mickael Barzalona she was among the leaders from the start, and after briefly struggling to obtain a clear run accelerated into the lead in the final strides and won by half a length from the favourite Keshana.
[7] Barzalona was again in the saddle when Zellie was stepped up in class and started favourite for the Listed Prix Roland de Chambure over 1400 metres at Deauville Racecourse on 11 July.
On 3 August Zellie was again moved up in class and started odds-on favourite for the Group 3 Prix Six Perfections over 1400 metres at Deauville but after having experienced trouble in running she was beaten into second place by the British-trained filly Oscula despite finishing strongly.
After being restrained at the back of the nine-runner field she produced a strong late run down the outside to take second place behind her stablemate Fleur d'Iris, beaten one and a half lengths by the winner.
[11] Zellie began her second campaign in the Prix Imprudence (a trial race for the Poule d'Essai des Pouliches) over 1400 metres on heavy ground at Deauville on 7 April when she started favourite but was beaten into second place by Malavath.