The winning Delaware Play 3 numbers for July 21, 1987 were: night 3-3-7.
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 |
|---|---|---|---|---|
| Jul 21, 1987 | Night | 3-3-7 | 13 | 4 |
| Jul 20, 1987 | Night | 1-8-8 | 17 | 8 |
| Jul 18, 1987 | Night | 8-8-9 | 25 | 7 |
| Jul 17, 1987 | Night | 8-8-7 | 23 | 5 |
| Jul 16, 1987 | Night | 1-6-5 | 12 | 3 |
| Jul 15, 1987 | Night | 2-1-0 | 3 | 3 |