The winning Michigan Daily 3 numbers for October 21, 1999 were: midday 5-4-5; evening 3-4-4.
Sum is the digits added together (5+5+0 = 10). Root sum keeps adding until one digit is left (10 → 1+0 = 1) — many regular players track it in their notebooks. Odd/Even marks each digit O or E (5-5-0 = OOE). High/Low marks 0–4 as L and 5–9 as H (5-5-0 = HHL).
Sum is the digits added together (5+5+0 = 10). Root sum keeps adding until one digit is left (10 → 1+0 = 1) — many regular players track it in their notebooks. Odd/Even marks each digit O or E (5-5-0 = OOE). High/Low marks 0–4 as L and 5–9 as H (5-5-0 = HHL).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| Oct 21, 1999 | Evening | 3-4-4 | 11 | 2 |
| Oct 21, 1999 | Midday | 5-4-5 | 14 | 5 |
| Oct 20, 1999 | Evening | 2-7-7 | 16 | 7 |
| Oct 20, 1999 | Midday | 3-1-9 | 13 | 4 |
| Oct 19, 1999 | Evening | 7-3-2 | 12 | 3 |
| Oct 19, 1999 | Midday | 2-2-4 | 8 | 8 |
| Oct 18, 1999 | Evening | 1-0-7 | 8 | 8 |
| Oct 18, 1999 | Midday | 9-1-5 | 15 | 6 |
| Oct 16, 1999 | Evening | 2-2-9 | 13 | 4 |
| Oct 16, 1999 | Midday | 1-3-5 | 9 | 9 |
| Oct 15, 1999 | Evening | 8-2-5 | 15 | 6 |
| Oct 15, 1999 | Midday | 4-5-8 | 17 | 8 |