The winning Delaware Play 4 numbers for September 28, 1981 were: night 1-4-9-7.
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 28, 1981 | Night | 1-4-9-7 | 21 | 3 |
| Sep 25, 1981 | Night | 8-4-1-6 | 19 | 1 |