The winning Michigan Daily 3 numbers for September 13, 1988 were: evening 6-8-9.
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 13, 1988 | Evening | 6-8-9 | 23 | 5 |
| Sep 12, 1988 | Evening | 7-7-5 | 19 | 1 |
| Sep 10, 1988 | Evening | 9-7-5 | 21 | 3 |
| Sep 9, 1988 | Evening | 3-7-4 | 14 | 5 |
| Sep 8, 1988 | Evening | 6-4-4 | 14 | 5 |
| Sep 7, 1988 | Evening | 9-7-7 | 23 | 5 |