The winning Delaware Play 3 numbers for May 15, 2005 were: night 3-7-7.
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 |
|---|---|---|---|---|
| May 15, 2005 | Night | 3-7-7 | 17 | 8 |
| May 14, 2005 | Night | 0-3-5 | 8 | 8 |
| May 14, 2005 | Day | 5-9-7 | 21 | 3 |
| May 13, 2005 | Night | 0-4-7 | 11 | 2 |
| May 13, 2005 | Day | 7-7-9 | 23 | 5 |
| May 12, 2005 | Night | 4-5-7 | 16 | 7 |
| May 12, 2005 | Day | 5-0-2 | 7 | 7 |
| May 11, 2005 | Night | 6-2-0 | 8 | 8 |
| May 11, 2005 | Day | 2-7-7 | 16 | 7 |
| May 10, 2005 | Night | 2-1-6 | 9 | 9 |
| May 10, 2005 | Day | 6-7-4 | 17 | 8 |
| May 9, 2005 | Night | 8-2-5 | 15 | 6 |
| May 9, 2005 | Day | 2-3-9 | 14 | 5 |