# Methodology

## Population

All 183,666 unique JK7 tenant2376 users with a successful recharge independently confirmed as their first recharge by at least one of 110 profile snapshots and with at least one settled game in the first cycle. Channel, direct-referral, and registration-day restrictions are not applied. The 107 D0 dates have complete recharge and game coverage through D7. Final losing, winning, and breakeven outcomes are all included.

## First recharge cycle

From the first successful recharge through games strictly before the second successful recharge. Later cycles are excluded.

## Unique highest peak

`max(0, (maximum balance during the first cycle / balance before the first game - 1) * 100)`. Each user enters exactly one mutually exclusive peak-profit bin and exactly one turnover bin. This is not a cumulative-threshold analysis.

## Turnover multiple

Total valid bet in the first recharge cycle divided by the first successful recharge amount. The previous filtered source used total bet; this raw-event reaudit uses `validBetAmount`, matching the requested 打码 definition.

## D1 recharge retention

At least one successful recharge on the exact next calendar day in `America/Sao_Paulo`. Login, game activity, and same-day repeat recharge do not count.

## Interpretation

All results are descriptive associations. Peak experience, turnover, rounds, duration, deposit size, game mix, final outcome, and user/channel differences may be correlated.