The winning Delaware Play 4 numbers for February 15, 1998 were: night 8-1-2-8.
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 |
|---|---|---|---|---|
| Feb 15, 1998 | Night | 8-1-2-8 | 19 | 1 |
| Feb 14, 1998 | Night | 0-3-2-8 | 13 | 4 |
| Feb 14, 1998 | Day | 2-8-7-0 | 17 | 8 |
| Feb 13, 1998 | Night | 8-2-5-9 | 24 | 6 |
| Feb 13, 1998 | Day | 3-8-4-8 | 23 | 5 |
| Feb 12, 1998 | Night | 3-6-2-8 | 19 | 1 |
| Feb 12, 1998 | Day | 8-8-1-3 | 20 | 2 |
| Feb 11, 1998 | Night | 0-0-7-9 | 16 | 7 |
| Feb 11, 1998 | Day | 8-3-3-7 | 21 | 3 |
| Feb 10, 1998 | Night | 9-1-6-6 | 22 | 4 |
| Feb 10, 1998 | Day | 1-9-9-1 | 20 | 2 |
| Feb 9, 1998 | Night | 8-5-1-7 | 21 | 3 |
| Feb 9, 1998 | Day | 7-0-9-9 | 25 | 7 |