ReferenceData modelContests & box scoresContestRelationKindWhat an advancement edge means (spec §4.6).enumwinner_advances_toloser_advances_tonext_leggroup_ofUsed by←ContestRelation.kind←previousContestRelationnext→ContestResultSummaryContestRelationA directed edge from one contest to another (spec §4.6). `round`/`slot`ContestResultSummaryThe wire projection of a [`ResultOutcome`] for the contest read API. Kept as a