The winning Michigan Daily 3 numbers for August 21, 2003 were: midday 3-9-1; evening 8-3-3.
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 |
|---|---|---|---|---|
| Aug 21, 2003 | Evening | 8-3-3 | 14 | 5 |
| Aug 21, 2003 | Midday | 3-9-1 | 13 | 4 |
| Aug 20, 2003 | Evening | 4-0-9 | 13 | 4 |
| Aug 20, 2003 | Midday | 8-4-4 | 16 | 7 |
| Aug 19, 2003 | Evening | 3-5-7 | 15 | 6 |
| Aug 19, 2003 | Midday | 6-2-5 | 13 | 4 |
| Aug 18, 2003 | Evening | 0-6-0 | 6 | 6 |
| Aug 18, 2003 | Midday | 9-4-9 | 22 | 4 |
| Aug 17, 2003 | Evening | 0-9-3 | 12 | 3 |
| Aug 17, 2003 | Midday | 0-5-7 | 12 | 3 |
| Aug 16, 2003 | Evening | 8-5-4 | 17 | 8 |
| Aug 16, 2003 | Midday | 8-4-9 | 21 | 3 |
| Aug 15, 2003 | Evening | 6-2-7 | 15 | 6 |
| Aug 15, 2003 | Midday | 1-8-6 | 15 | 6 |