The winning Connecticut Play4 numbers for September 16, 2009 were: day 2-1-7-9; night 1-1-7-0.
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 16, 2009 | Night | 1-1-7-0 | 9 | 9 |
| Sep 16, 2009 | Day | 2-1-7-9 | 19 | 1 |
| Sep 15, 2009 | Night | 7-2-3-2 | 14 | 5 |
| Sep 15, 2009 | Day | 1-1-9-3 | 14 | 5 |
| Sep 14, 2009 | Night | 6-9-2-1 | 18 | 9 |
| Sep 14, 2009 | Day | 0-6-2-0 | 8 | 8 |
| Sep 13, 2009 | Night | 0-7-7-3 | 17 | 8 |
| Sep 13, 2009 | Day | 7-2-8-5 | 22 | 4 |
| Sep 12, 2009 | Night | 4-3-9-1 | 17 | 8 |
| Sep 12, 2009 | Day | 3-9-8-8 | 28 | 1 |
| Sep 11, 2009 | Night | 9-2-1-4 | 16 | 7 |
| Sep 11, 2009 | Day | 6-7-5-9 | 27 | 9 |
| Sep 10, 2009 | Night | 5-8-6-3 | 22 | 4 |
| Sep 10, 2009 | Day | 6-4-0-9 | 19 | 1 |