The winning Delaware Play 4 numbers for March 15, 2015 were: night 9-5-5-7.
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 15, 2015 | Night | 9-5-5-7 | 26 | 8 |
| Mar 14, 2015 | Night | 2-9-1-5 | 17 | 8 |
| Mar 14, 2015 | Day | 9-0-3-4 | 16 | 7 |
| Mar 13, 2015 | Night | 2-1-2-8 | 13 | 4 |
| Mar 13, 2015 | Day | 6-5-9-5 | 25 | 7 |
| Mar 12, 2015 | Night | 0-1-8-6 | 15 | 6 |
| Mar 12, 2015 | Day | 3-2-9-7 | 21 | 3 |
| Mar 11, 2015 | Night | 1-4-0-8 | 13 | 4 |
| Mar 11, 2015 | Day | 5-7-8-7 | 27 | 9 |
| Mar 10, 2015 | Night | 4-8-6-9 | 27 | 9 |
| Mar 10, 2015 | Day | 8-9-9-0 | 26 | 8 |
| Mar 9, 2015 | Night | 4-6-0-3 | 13 | 4 |
| Mar 9, 2015 | Day | 6-1-2-6 | 15 | 6 |