The winning Michigan Daily 4 numbers for August 21, 2003 were: midday 1-8-2-8; evening 9-3-8-2.
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 | 9-3-8-2 | 22 | 4 |
| Aug 21, 2003 | Midday | 1-8-2-8 | 19 | 1 |
| Aug 20, 2003 | Evening | 9-1-1-1 | 12 | 3 |
| Aug 20, 2003 | Midday | 7-2-9-9 | 27 | 9 |
| Aug 19, 2003 | Evening | 1-9-9-4 | 23 | 5 |
| Aug 19, 2003 | Midday | 1-7-4-2 | 14 | 5 |
| Aug 18, 2003 | Evening | 5-5-3-9 | 22 | 4 |
| Aug 18, 2003 | Midday | 6-9-3-3 | 21 | 3 |
| Aug 17, 2003 | Evening | 8-5-2-8 | 23 | 5 |
| Aug 17, 2003 | Midday | 3-5-4-6 | 18 | 9 |
| Aug 16, 2003 | Evening | 5-3-2-1 | 11 | 2 |
| Aug 16, 2003 | Midday | 3-0-1-9 | 13 | 4 |
| Aug 15, 2003 | Evening | 1-7-3-0 | 11 | 2 |
| Aug 15, 2003 | Midday | 7-0-7-9 | 23 | 5 |