The winning Michigan Daily 3 numbers for September 15, 2003 were: midday 4-0-3; evening 7-3-7.
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 |
|---|---|---|---|---|
| Sep 15, 2003 | Evening | 7-3-7 | 17 | 8 |
| Sep 15, 2003 | Midday | 4-0-3 | 7 | 7 |
| Sep 14, 2003 | Evening | 6-1-0 | 7 | 7 |
| Sep 14, 2003 | Midday | 5-5-2 | 12 | 3 |
| Sep 13, 2003 | Evening | 1-4-0 | 5 | 5 |
| Sep 13, 2003 | Midday | 8-4-1 | 13 | 4 |
| Sep 12, 2003 | Evening | 3-0-0 | 3 | 3 |
| Sep 12, 2003 | Midday | 2-4-2 | 8 | 8 |
| Sep 11, 2003 | Evening | 3-1-1 | 5 | 5 |
| Sep 11, 2003 | Midday | 2-9-8 | 19 | 1 |
| Sep 10, 2003 | Evening | 7-0-7 | 14 | 5 |
| Sep 10, 2003 | Midday | 8-6-5 | 19 | 1 |
| Sep 9, 2003 | Evening | 7-4-5 | 16 | 7 |
| Sep 9, 2003 | Midday | 7-9-1 | 17 | 8 |