She won the 2020 English Women's Open Amateur Stroke Play Championship.

As an amateur Annabell represented Europe against Asia, and America and a two time gold medalist for England in the European Team Championships.

In August 2020, Fuller won the English Women's Open Amateur Stroke Play Championship at Burnham and Berrow Golf Club, finishing three strokes ahead of her nearest challenger.

[1] The following week she reached the final of the Womens Amateur Championship, losing by 1 hole to Aline Krauter.

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