The winning Michigan Daily 3 numbers for May 21, 1999 were: midday 1-2-4; evening 1-3-6.
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 |
|---|---|---|---|---|
| May 21, 1999 | Evening | 1-3-6 | 10 | 1 |
| May 21, 1999 | Midday | 1-2-4 | 7 | 7 |
| May 20, 1999 | Evening | 4-6-9 | 19 | 1 |
| May 20, 1999 | Midday | 9-7-8 | 24 | 6 |
| May 19, 1999 | Evening | 4-2-9 | 15 | 6 |
| May 19, 1999 | Midday | 4-4-0 | 8 | 8 |
| May 18, 1999 | Evening | 6-5-0 | 11 | 2 |
| May 18, 1999 | Midday | 6-5-9 | 20 | 2 |
| May 17, 1999 | Evening | 4-3-2 | 9 | 9 |
| May 17, 1999 | Midday | 9-0-0 | 9 | 9 |
| May 15, 1999 | Evening | 8-3-3 | 14 | 5 |
| May 15, 1999 | Midday | 6-2-5 | 13 | 4 |