The winning Wisconsin Pick 4 numbers for September 10, 1999 were: single 7-3-2-1.
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 |
|---|---|---|---|---|
| Sep 10, 1999 | Single | 7-3-2-1 | 13 | 4 |
| Sep 9, 1999 | Single | 2-4-0-5 | 11 | 2 |
| Sep 8, 1999 | Single | 0-0-0-0 | 0 | 0 |
| Sep 7, 1999 | Single | 9-6-9-7 | 31 | 4 |
| Sep 6, 1999 | Single | 1-0-0-0 | 1 | 1 |
| Sep 5, 1999 | Single | 8-6-9-6 | 29 | 2 |
| Sep 4, 1999 | Single | 3-5-9-4 | 21 | 3 |