The winning Delaware Play 4 numbers for May 15, 2015 were: day 7-0-8-2; night 5-9-1-0.
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 |
|---|---|---|---|---|
| May 15, 2015 | Night | 5-9-1-0 | 15 | 6 |
| May 15, 2015 | Day | 7-0-8-2 | 17 | 8 |
| May 14, 2015 | Night | 2-1-7-5 | 15 | 6 |
| May 14, 2015 | Day | 9-7-9-9 | 34 | 7 |
| May 13, 2015 | Night | 9-2-1-6 | 18 | 9 |
| May 13, 2015 | Day | 0-8-8-2 | 18 | 9 |
| May 12, 2015 | Night | 8-6-1-4 | 19 | 1 |
| May 12, 2015 | Day | 1-3-3-3 | 10 | 1 |
| May 11, 2015 | Night | 4-7-0-1 | 12 | 3 |
| May 11, 2015 | Day | 1-2-1-6 | 10 | 1 |
| May 10, 2015 | Night | 4-2-3-4 | 13 | 4 |
| May 9, 2015 | Night | 1-6-2-9 | 18 | 9 |
| May 9, 2015 | Day | 8-9-4-0 | 21 | 3 |