Loyd sank 8-of-8 free-throw tries in the extra time en route to his career-best scoring performance and also distributed 15 assists for the unbeaten Ducks (8-0).
Moser grabbed 10 rebounds and Joseph Young added 19 points.
Damyean Dotson chipped in with 13 for Oregon.
Ole Miss (6-2) was paced by a career-high 39 points from Marshall Henderson, who canned 10 three-pointers.
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