The winning Wisconsin Pick 4 numbers for May 21, 2017 were: single 6-8-8-8.
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 |
|---|---|---|---|---|
| May 21, 2017 | Single | 6-8-8-8 | 30 | 3 |
| May 20, 2017 | Single | 8-2-4-5 | 19 | 1 |
| May 19, 2017 | Single | 2-1-2-5 | 10 | 1 |
| May 18, 2017 | Single | 6-7-1-0 | 14 | 5 |
| May 17, 2017 | Single | 3-6-3-7 | 19 | 1 |
| May 16, 2017 | Single | 1-3-7-8 | 19 | 1 |
| May 15, 2017 | Single | 5-7-0-8 | 20 | 2 |