The winning Delaware Play 4 numbers for February 1, 1998 were: night 8-1-2-9.
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 |
|---|---|---|---|---|
| Feb 1, 1998 | Night | 8-1-2-9 | 20 | 2 |
| Jan 31, 1998 | Night | 4-8-1-9 | 22 | 4 |
| Jan 31, 1998 | Day | 8-2-2-3 | 15 | 6 |
| Jan 30, 1998 | Night | 7-2-4-3 | 16 | 7 |
| Jan 30, 1998 | Day | 0-7-0-7 | 14 | 5 |
| Jan 29, 1998 | Night | 8-7-0-9 | 24 | 6 |
| Jan 29, 1998 | Day | 3-1-2-0 | 6 | 6 |
| Jan 28, 1998 | Night | 3-6-3-9 | 21 | 3 |
| Jan 28, 1998 | Day | 6-6-6-0 | 18 | 9 |
| Jan 27, 1998 | Night | 6-5-5-0 | 16 | 7 |
| Jan 27, 1998 | Day | 2-5-4-8 | 19 | 1 |
| Jan 26, 1998 | Night | 7-7-7-0 | 21 | 3 |
| Jan 26, 1998 | Day | 4-4-5-1 | 14 | 5 |