The winning Wisconsin Pick 4 numbers for October 21, 2021 were: midday 3-3-7-6; evening 6-8-9-8.
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).
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 |
|---|---|---|---|---|
| Oct 21, 2021 | Evening | 6-8-9-8 | 31 | 4 |
| Oct 21, 2021 | Midday | 3-3-7-6 | 19 | 1 |
| Oct 20, 2021 | Evening | 6-2-2-6 | 16 | 7 |
| Oct 20, 2021 | Midday | 3-4-1-5 | 13 | 4 |
| Oct 19, 2021 | Evening | 5-0-3-4 | 12 | 3 |
| Oct 19, 2021 | Midday | 6-5-4-9 | 24 | 6 |
| Oct 18, 2021 | Evening | 4-8-1-4 | 17 | 8 |
| Oct 18, 2021 | Midday | 4-7-3-8 | 22 | 4 |
| Oct 17, 2021 | Evening | 8-0-1-8 | 17 | 8 |
| Oct 17, 2021 | Midday | 1-7-7-6 | 21 | 3 |
| Oct 16, 2021 | Evening | 4-5-8-9 | 26 | 8 |
| Oct 16, 2021 | Midday | 0-8-2-6 | 16 | 7 |
| Oct 15, 2021 | Evening | 8-4-4-7 | 23 | 5 |
| Oct 15, 2021 | Midday | 6-6-6-6 | 24 | 6 |