The winning New York Win 4 numbers for October 20, 1991 were: evening 3-5-9-7.
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 |
|---|---|---|---|---|
| Oct 20, 1991 | Evening | 3-5-9-7 | 24 | 6 |
| Oct 19, 1991 | Evening | 8-0-1-8 | 17 | 8 |
| Oct 18, 1991 | Evening | 2-6-2-0 | 10 | 1 |
| Oct 17, 1991 | Evening | 1-7-8-0 | 16 | 7 |
| Oct 16, 1991 | Evening | 8-3-0-7 | 18 | 9 |
| Oct 15, 1991 | Evening | 2-4-5-0 | 11 | 2 |
| Oct 14, 1991 | Evening | 3-5-1-6 | 15 | 6 |