Returns the full detail document for a single event: the event itself (status, timing, scores, line-ups, key match events), recent form and aggregated streak/goal stats for both competitors, the official standings for the event's stage, and the complete head-to-head history between the two competitors. Form and stats are computed over a single window of each competitor's most recent finished fixtures, with the home, away and in-competition scopes taken as slices of that window — so home and away counts sum to the total rather than each covering a window of their own.