The winning Delaware Play 3 numbers for September 21, 1997 were: night 9-4-9.
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 |
|---|---|---|---|---|
| Sep 21, 1997 | Night | 9-4-9 | 22 | 4 |
| Sep 20, 1997 | Night | 1-5-5 | 11 | 2 |
| Sep 20, 1997 | Day | 0-4-5 | 9 | 9 |
| Sep 19, 1997 | Night | 9-7-1 | 17 | 8 |
| Sep 19, 1997 | Day | 4-9-7 | 20 | 2 |
| Sep 18, 1997 | Night | 8-2-7 | 17 | 8 |
| Sep 18, 1997 | Day | 9-2-7 | 18 | 9 |
| Sep 17, 1997 | Night | 2-3-5 | 10 | 1 |
| Sep 17, 1997 | Day | 9-2-5 | 16 | 7 |
| Sep 16, 1997 | Night | 9-8-4 | 21 | 3 |
| Sep 16, 1997 | Day | 2-9-7 | 18 | 9 |
| Sep 15, 1997 | Night | 3-3-0 | 6 | 6 |
| Sep 15, 1997 | Day | 1-3-7 | 11 | 2 |