The winning Delaware Play 4 numbers for March 1, 1998 were: night 9-1-5-4.
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 |
|---|---|---|---|---|
| Mar 1, 1998 | Night | 9-1-5-4 | 19 | 1 |
| Feb 28, 1998 | Night | 0-1-3-4 | 8 | 8 |
| Feb 28, 1998 | Day | 9-6-7-8 | 30 | 3 |
| Feb 27, 1998 | Night | 3-6-0-4 | 13 | 4 |
| Feb 27, 1998 | Day | 9-3-8-7 | 27 | 9 |
| Feb 26, 1998 | Night | 6-9-4-9 | 28 | 1 |
| Feb 26, 1998 | Day | 8-7-9-0 | 24 | 6 |
| Feb 25, 1998 | Night | 6-7-1-5 | 19 | 1 |
| Feb 25, 1998 | Day | 8-6-1-1 | 16 | 7 |
| Feb 24, 1998 | Night | 5-7-0-3 | 15 | 6 |
| Feb 24, 1998 | Day | 0-6-7-3 | 16 | 7 |
| Feb 23, 1998 | Night | 4-7-3-4 | 18 | 9 |
| Feb 23, 1998 | Day | 8-1-7-2 | 18 | 9 |