The winning Delaware Play 4 numbers for May 22, 2011 were: night 9-7-8-4.
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 22, 2011 | Night | 9-7-8-4 | 28 | 1 |
| May 21, 2011 | Night | 9-2-6-7 | 24 | 6 |
| May 21, 2011 | Day | 4-9-9-8 | 30 | 3 |
| May 20, 2011 | Night | 8-5-6-5 | 24 | 6 |
| May 20, 2011 | Day | 7-6-9-5 | 27 | 9 |
| May 19, 2011 | Night | 2-7-0-5 | 14 | 5 |
| May 19, 2011 | Day | 6-4-9-2 | 21 | 3 |
| May 18, 2011 | Night | 0-7-6-3 | 16 | 7 |
| May 18, 2011 | Day | 2-0-1-1 | 4 | 4 |
| May 17, 2011 | Night | 3-3-8-8 | 22 | 4 |
| May 17, 2011 | Day | 1-3-3-1 | 8 | 8 |
| May 16, 2011 | Night | 6-4-0-1 | 11 | 2 |
| May 16, 2011 | Day | 9-1-2-4 | 16 | 7 |