{"rules":{"max_picks":5,"window_days":7,"text":"Enter up to 5 universe symbols per round. Each pick locks the stored close on the round day and is scored a week later on its real 7-day return. Entries close at the next US session open after the round day (round.entries_close_at) so nobody commits on a return they can already see. Ranked by average return; the NEXUS screen competes as a row. Every row carries basis: 'live' means forward-scored rounds; 'backtest' means the screen's record reconstructed over stored closes after the fact, shown until it has forward-scored rounds of its own. Scoreboard only — no prizes, nothing moves money."},"round":{"round_anchor":"2026-09-18","entries":0,"traders":0,"scores_after":"2026-09-25","entries_close_at":"2026-09-21T13:30:00+00:00","entries_open":true},"leaderboard":[{"handle":"joebloggs","picks":2,"rounds":1,"avg_pct":79.65,"median_pct":79.65,"best_pct":250.2,"doublers":1,"hit50":1,"basis":"live","rank":1,"is_house":false},{"handle":"NEXUS screen","picks":4,"rounds":1,"avg_pct":4.01,"median_pct":2.01,"best_pct":28.7,"doublers":0,"hit50":0,"basis":"live","rank":2,"is_house":true},{"handle":"expire76","picks":5,"rounds":1,"avg_pct":3.74,"median_pct":5.14,"best_pct":6.76,"doublers":0,"hit50":0,"basis":"live","rank":3,"is_house":false}],"my_entries":[]}