The winning Delaware Play 3 numbers for September 13, 1980 were: night 3-1-1.
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 13, 1980 | Night | 3-1-1 | 5 | 5 |
| Sep 12, 1980 | Night | 7-4-3 | 14 | 5 |
| Sep 11, 1980 | Night | 3-3-7 | 13 | 4 |
| Sep 10, 1980 | Night | 8-3-3 | 14 | 5 |
| Sep 9, 1980 | Night | 8-5-0 | 13 | 4 |
| Sep 8, 1980 | Night | 1-2-2 | 5 | 5 |