The winning Washington DC DC-4 numbers for July 26, 1990 were: single 3-1-1-8.
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 |
|---|---|---|---|---|
| Jul 26, 1990 | Single | 3-1-1-8 | 13 | 4 |
| Jul 24, 1990 | Single | 2-9-5-8 | 24 | 6 |
| Jul 21, 1990 | Single | 7-1-5-5 | 18 | 9 |