Seven eras in one archive
The archive begins with The Big Game and follows the lineage through the Mega Millions name and repeated matrix redesigns. The current 70/24 matrix began in April 2025.
Selected matrix history
| Era | Matrix |
|---|---|
| The Big Game — Original | 5/50 + 1/25 |
| Early Mega Millions | 5/52 + 1/52 |
| 2005 era | 5/56 + 1/46 |
| 2013 era | 5/75 + 1/15 |
| 2017 era | 5/70 + 1/25 |
| 2025 era | 5/70 + 1/24 |
Complete chronology
The encyclopedia presents every validated drawing exactly once in chronological order, keeping the five white balls separate from the Mega Ball.
Method and responsible interpretation
The figures on this page are drawn from the verified historical dataset used to produce The Mega Millions Encyclopedia. Historical frequency, droughts, pairs, streaks and records describe past drawings. They do not predict future random drawings or provide a guaranteed winning method.
Independent reference published by Tudor Books. Not affiliated with, sponsored by, authorized by, or endorsed by the lottery organizations whose historical games are discussed.