N'egwuregwu Olimpik e mere n'oge okpomọkụ na Stockholm, Sweden, n'afọ 1912, Moore nwetara ihe nrite ọlaedo dị ka onye so n'òtù ndị inyom Britain nke nwetara ebe mbụ n'ọsọ ọsọ 4x100 mita n'egwuregwu freestyle
, ya na ndị otu ya bụ Jennie Fletcher, Annie Speirs na Irene Steer. Ụmụ nwanyị Britain setịpụrụ ihe ndekọ ụwa ọhụrụ na ihe omume nke 5:52.8, na-eti ndị German na ndị otu ụmụ nwanyị Austrian relay site na nnukwu ọdịiche. Eze Sweden bụ́ Gustav nke Ise nyere Moore na ndị òtù ya ihe nrite ọlaedo na ihe nrite ndị Olympia.