The winning Delaware Play 4 numbers for March 16, 1999 were: day 9-7-2-4; night 9-3-8-0.
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 |
|---|---|---|---|---|
| Mar 16, 1999 | Night | 9-3-8-0 | 20 | 2 |
| Mar 16, 1999 | Day | 9-7-2-4 | 22 | 4 |
| Mar 15, 1999 | Night | 0-8-5-2 | 15 | 6 |
| Mar 15, 1999 | Day | 4-7-7-5 | 23 | 5 |
| Mar 14, 1999 | Night | 3-1-4-6 | 14 | 5 |
| Mar 13, 1999 | Night | 3-2-4-3 | 12 | 3 |
| Mar 13, 1999 | Day | 4-0-4-6 | 14 | 5 |
| Mar 12, 1999 | Night | 4-2-2-8 | 16 | 7 |
| Mar 12, 1999 | Day | 5-0-6-5 | 16 | 7 |
| Mar 11, 1999 | Night | 1-3-4-8 | 16 | 7 |
| Mar 11, 1999 | Day | 8-8-1-7 | 24 | 6 |
| Mar 10, 1999 | Night | 8-8-5-0 | 21 | 3 |
| Mar 10, 1999 | Day | 5-6-3-6 | 20 | 2 |