The winning Delaware Play 4 numbers for July 31, 1998 were: day 9-9-1-8; night 9-5-2-6.
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).
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 |
|---|---|---|---|---|
| Jul 31, 1998 | Night | 9-5-2-6 | 22 | 4 |
| Jul 31, 1998 | Day | 9-9-1-8 | 27 | 9 |
| Jul 30, 1998 | Night | 8-5-9-1 | 23 | 5 |
| Jul 30, 1998 | Day | 4-5-2-6 | 17 | 8 |
| Jul 29, 1998 | Night | 8-8-1-7 | 24 | 6 |
| Jul 29, 1998 | Day | 6-1-4-5 | 16 | 7 |
| Jul 28, 1998 | Night | 5-5-5-7 | 22 | 4 |
| Jul 28, 1998 | Day | 1-0-7-9 | 17 | 8 |
| Jul 27, 1998 | Night | 1-4-4-1 | 10 | 1 |
| Jul 27, 1998 | Day | 3-1-3-5 | 12 | 3 |
| Jul 26, 1998 | Night | 9-3-3-3 | 18 | 9 |
| Jul 25, 1998 | Night | 8-2-4-4 | 18 | 9 |
| Jul 25, 1998 | Day | 4-8-8-7 | 27 | 9 |