The winning Delaware Play 4 numbers for September 19, 2021 were: night 7-1-5-6.
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 19, 2021 | Night | 7-1-5-6 | 19 | 1 |
| Sep 18, 2021 | Night | 3-2-0-0 | 5 | 5 |
| Sep 18, 2021 | Day | 4-1-2-8 | 15 | 6 |
| Sep 17, 2021 | Night | 4-2-1-2 | 9 | 9 |
| Sep 17, 2021 | Day | 0-5-2-4 | 11 | 2 |
| Sep 16, 2021 | Night | 2-5-7-7 | 21 | 3 |
| Sep 16, 2021 | Day | 3-4-0-5 | 12 | 3 |
| Sep 15, 2021 | Night | 8-1-1-7 | 17 | 8 |
| Sep 15, 2021 | Day | 3-9-2-7 | 21 | 3 |
| Sep 14, 2021 | Night | 6-7-1-0 | 14 | 5 |
| Sep 14, 2021 | Day | 3-2-5-2 | 12 | 3 |
| Sep 13, 2021 | Night | 9-7-0-2 | 18 | 9 |
| Sep 13, 2021 | Day | 5-5-9-6 | 25 | 7 |