The winning Delaware Play 3 numbers for April 15, 1991 were: night 5-9-0.
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 |
|---|---|---|---|---|
| Apr 15, 1991 | Night | 5-9-0 | 14 | 5 |
| Apr 14, 1991 | Night | 5-6-2 | 13 | 4 |
| Apr 13, 1991 | Night | 9-9-2 | 20 | 2 |
| Apr 12, 1991 | Night | 1-4-2 | 7 | 7 |
| Apr 11, 1991 | Night | 5-0-7 | 12 | 3 |
| Apr 10, 1991 | Night | 1-3-9 | 13 | 4 |
| Apr 9, 1991 | Night | 5-4-3 | 12 | 3 |