The winning Colorado Pick 3 numbers for March 15, 2021 were: midday 4-4-0; evening 4-5-0.
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 |
|---|---|---|---|---|
| Mar 15, 2021 | Evening | 4-5-0 | 9 | 9 |
| Mar 15, 2021 | Midday | 4-4-0 | 8 | 8 |
| Mar 14, 2021 | Evening | 7-7-6 | 20 | 2 |
| Mar 14, 2021 | Midday | 6-3-9 | 18 | 9 |
| Mar 13, 2021 | Evening | 3-5-9 | 17 | 8 |
| Mar 13, 2021 | Midday | 5-8-2 | 15 | 6 |
| Mar 12, 2021 | Evening | 8-6-1 | 15 | 6 |
| Mar 12, 2021 | Midday | 7-1-0 | 8 | 8 |
| Mar 11, 2021 | Evening | 0-4-2 | 6 | 6 |
| Mar 11, 2021 | Midday | 6-8-6 | 20 | 2 |
| Mar 10, 2021 | Evening | 6-3-3 | 12 | 3 |
| Mar 10, 2021 | Midday | 1-6-7 | 14 | 5 |
| Mar 9, 2021 | Evening | 4-5-1 | 10 | 1 |
| Mar 9, 2021 | Midday | 9-6-5 | 20 | 2 |