Storylines of one card

The talking points of one card, computed from the record — the pre-fight read, as of the card's start (a completed card reads as it did walking in). summary: title_fights, ranked_fighters, champions and closest_bout (the bout nearest 50/50). fights[]: each non-cancelled bout with both corners (id, slug, name, rank on the promotion's official board on the event date — 0 = champion, null = unranked — and streak, signed: positive = consecutive wins, negative = consecutive losses), win_probability_a with probability_source (model = UFCalendar model output, UFC bouts only, corner-guarded; power_index = the UFCalendar Power Index curve; null when neither exists) and tags[]: title, eliminator (both corners ranked #1–#4), coin_flip (within 6 points of 50/50), both_streaking (a, b ≥ 2), finishers (pct, average recent finish rate ≥ 60%), rematch (a_wins, b_wins) or trilogy_decider (wins, level after two or more meetings). card: avg_age (4+ known ages), tallest, longest_reach, nations (country, count), streak_leaders (3+ wins, top 3), debuts (first bout in this promotion), returns (365+ days out, months, top 3) and fastest_finish (the quickest career round-1 KO/TKO/submission among the fighters). No fan picks, no combined record. Win probabilities are not betting advice.