The winning Delaware Play 3 numbers for July 15, 1980 were: night 9-7-9.
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 |
|---|---|---|---|---|
| Jul 15, 1980 | Night | 9-7-9 | 25 | 7 |
| Jul 14, 1980 | Night | 7-5-9 | 21 | 3 |
| Jul 12, 1980 | Night | 4-1-3 | 8 | 8 |
| Jul 11, 1980 | Night | 0-6-6 | 12 | 3 |
| Jul 10, 1980 | Night | 1-2-8 | 11 | 2 |
| Jul 9, 1980 | Night | 3-7-8 | 18 | 9 |