Number hit intervals is a statistical tool for analyzing 河北排列五 lottery that identifies patterns in the intervals between each number's appearances in draws.

This method is based on counting the number of draws between repeated occurrences of a specific ball. The interval analysis helps identify numbers that are 'due' to appear in upcoming draws.

Based on the last 20 draws for 河北排列五 lottery: Field # 1: ball 3 has been absent the longest (depth 14 draws), ball 2 appeared most recently (depth 0). Field # 2: ball 8 has been absent the longest (depth 18 draws), ball 5 appeared most recently (depth 0). Field # 3: ball 0 has been absent the longest (depth 19 draws), ball 6 appeared most recently (depth 0). Field # 4: ball 6 has been absent the longest (depth 15 draws), ball 1 appeared most recently (depth 0). Field # 5: ball 2 has been absent the longest (depth 10 draws), ball 4 appeared most recently (depth 0). Full interval table is shown below. Draws between hits →Karnauh method →