The winning New York Win 4 numbers for September 15, 1986 were: evening 5-5-5-8.
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 |
|---|---|---|---|---|
| Sep 15, 1986 | Evening | 5-5-5-8 | 23 | 5 |
| Sep 14, 1986 | Evening | 6-9-5-6 | 26 | 8 |
| Sep 13, 1986 | Evening | 2-6-5-5 | 18 | 9 |
| Sep 12, 1986 | Evening | 4-7-6-5 | 22 | 4 |
| Sep 11, 1986 | Evening | 4-9-7-1 | 21 | 3 |
| Sep 10, 1986 | Evening | 2-5-3-3 | 13 | 4 |
| Sep 9, 1986 | Evening | 1-4-9-1 | 15 | 6 |