The winning Connecticut Play4 numbers for May 21, 2017 were: day 8-4-3-8; night 9-2-4-3.
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 |
|---|---|---|---|---|
| May 21, 2017 | Night | 9-2-4-3 | 18 | 9 |
| May 21, 2017 | Day | 8-4-3-8 | 23 | 5 |
| May 20, 2017 | Night | 4-5-4-4 | 17 | 8 |
| May 20, 2017 | Day | 0-8-6-9 | 23 | 5 |
| May 19, 2017 | Night | 8-3-6-1 | 18 | 9 |
| May 19, 2017 | Day | 5-1-5-4 | 15 | 6 |
| May 18, 2017 | Night | 8-5-0-9 | 22 | 4 |
| May 18, 2017 | Day | 4-0-8-7 | 19 | 1 |
| May 17, 2017 | Night | 0-2-0-9 | 11 | 2 |
| May 17, 2017 | Day | 3-3-4-0 | 10 | 1 |
| May 16, 2017 | Night | 3-5-5-0 | 13 | 4 |
| May 16, 2017 | Day | 9-9-5-6 | 29 | 2 |
| May 15, 2017 | Night | 1-9-1-4 | 15 | 6 |
| May 15, 2017 | Day | 7-6-4-3 | 20 | 2 |