The winning Wisconsin Pick 3 numbers for September 23, 1999 were: single 3-5-1.
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 23, 1999 | Single | 3-5-1 | 9 | 9 |
| Sep 22, 1999 | Single | 7-9-2 | 18 | 9 |
| Sep 21, 1999 | Single | 7-6-0 | 13 | 4 |
| Sep 20, 1999 | Single | 9-1-5 | 15 | 6 |
| Sep 19, 1999 | Single | 5-2-3 | 10 | 1 |
| Sep 18, 1999 | Single | 0-0-8 | 8 | 8 |
| Sep 17, 1999 | Single | 2-1-2 | 5 | 5 |