The winning New York Numbers numbers for September 21, 2011 were: midday 4-2-1; evening 3-7-5.
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).
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, 2011 | Evening | 3-7-5 | 15 | 6 |
| Sep 21, 2011 | Midday | 4-2-1 | 7 | 7 |
| Sep 20, 2011 | Evening | 6-8-3 | 17 | 8 |
| Sep 20, 2011 | Midday | 4-7-1 | 12 | 3 |
| Sep 19, 2011 | Evening | 0-3-4 | 7 | 7 |
| Sep 19, 2011 | Midday | 1-3-5 | 9 | 9 |
| Sep 18, 2011 | Evening | 0-0-3 | 3 | 3 |
| Sep 18, 2011 | Midday | 5-4-7 | 16 | 7 |
| Sep 17, 2011 | Evening | 2-2-6 | 10 | 1 |
| Sep 17, 2011 | Midday | 4-5-8 | 17 | 8 |
| Sep 16, 2011 | Evening | 7-9-8 | 24 | 6 |
| Sep 16, 2011 | Midday | 0-5-8 | 13 | 4 |
| Sep 15, 2011 | Evening | 5-7-7 | 19 | 1 |
| Sep 15, 2011 | Midday | 2-8-5 | 15 | 6 |