The winning Delaware Play 4 numbers for September 1, 1991 were: night 8-1-6-0.
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 1, 1991 | Night | 8-1-6-0 | 15 | 6 |
| Aug 31, 1991 | Night | 0-1-0-3 | 4 | 4 |
| Aug 30, 1991 | Night | 4-1-6-1 | 12 | 3 |
| Aug 29, 1991 | Night | 1-7-9-7 | 24 | 6 |
| Aug 28, 1991 | Night | 0-5-1-8 | 14 | 5 |
| Aug 27, 1991 | Night | 2-1-3-8 | 14 | 5 |
| Aug 26, 1991 | Night | 8-8-9-0 | 25 | 7 |