The winning Delaware Play 4 numbers for September 23, 1988 were: night 2-0-3-4.
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 23, 1988 | Night | 2-0-3-4 | 9 | 9 |
| Sep 22, 1988 | Night | 5-7-3-7 | 22 | 4 |
| Sep 21, 1988 | Night | 6-2-7-6 | 21 | 3 |
| Sep 20, 1988 | Night | 9-4-1-4 | 18 | 9 |
| Sep 19, 1988 | Night | 7-2-2-8 | 19 | 1 |
| Sep 17, 1988 | Night | 7-9-9-4 | 29 | 2 |