The winning Michigan Daily 4 numbers for March 21, 2010 were: midday 1-6-4-8; evening 9-9-7-7.
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, 2010 | Evening | 9-9-7-7 | 32 | 5 |
| Mar 21, 2010 | Midday | 1-6-4-8 | 19 | 1 |
| Mar 20, 2010 | Evening | 8-5-4-7 | 24 | 6 |
| Mar 20, 2010 | Midday | 7-4-8-0 | 19 | 1 |
| Mar 19, 2010 | Evening | 5-4-5-4 | 18 | 9 |
| Mar 19, 2010 | Midday | 6-8-5-4 | 23 | 5 |
| Mar 18, 2010 | Evening | 8-6-7-9 | 30 | 3 |
| Mar 18, 2010 | Midday | 7-5-3-5 | 20 | 2 |
| Mar 17, 2010 | Evening | 8-4-8-0 | 20 | 2 |
| Mar 17, 2010 | Midday | 1-6-1-1 | 9 | 9 |
| Mar 16, 2010 | Evening | 0-1-7-7 | 15 | 6 |
| Mar 16, 2010 | Midday | 0-5-7-0 | 12 | 3 |
| Mar 15, 2010 | Evening | 8-0-0-7 | 15 | 6 |
| Mar 15, 2010 | Midday | 4-0-9-1 | 14 | 5 |