The winning Michigan Daily 3 numbers for February 15, 1988 were: evening 9-9-1.
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 |
|---|---|---|---|---|
| Feb 15, 1988 | Evening | 9-9-1 | 19 | 1 |
| Feb 13, 1988 | Evening | 7-5-4 | 16 | 7 |
| Feb 12, 1988 | Evening | 7-0-7 | 14 | 5 |
| Feb 11, 1988 | Evening | 2-6-1 | 9 | 9 |
| Feb 10, 1988 | Evening | 0-4-1 | 5 | 5 |
| Feb 9, 1988 | Evening | 9-3-7 | 19 | 1 |