The winning Connecticut Play3 numbers for March 21, 2018 were: day 5-9-9; night 9-8-8.
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).
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 |
|---|---|---|---|---|
| Mar 21, 2018 | Night | 9-8-8 | 25 | 7 |
| Mar 21, 2018 | Day | 5-9-9 | 23 | 5 |
| Mar 20, 2018 | Night | 3-5-4 | 12 | 3 |
| Mar 20, 2018 | Day | 8-1-4 | 13 | 4 |
| Mar 19, 2018 | Night | 4-8-9 | 21 | 3 |
| Mar 19, 2018 | Day | 6-5-0 | 11 | 2 |
| Mar 18, 2018 | Night | 9-2-2 | 13 | 4 |
| Mar 18, 2018 | Day | 9-3-2 | 14 | 5 |
| Mar 17, 2018 | Night | 7-8-9 | 24 | 6 |
| Mar 17, 2018 | Day | 9-5-7 | 21 | 3 |
| Mar 16, 2018 | Night | 7-8-8 | 23 | 5 |
| Mar 16, 2018 | Day | 4-2-7 | 13 | 4 |
| Mar 15, 2018 | Night | 1-2-3 | 6 | 6 |
| Mar 15, 2018 | Day | 3-2-6 | 11 | 2 |