The winning Michigan Daily 4 numbers for May 21, 2021 were: midday 7-2-7-1; evening 9-8-6-1.
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, 2021 | Evening | 9-8-6-1 | 24 | 6 |
| May 21, 2021 | Midday | 7-2-7-1 | 17 | 8 |
| May 20, 2021 | Evening | 1-1-1-6 | 9 | 9 |
| May 20, 2021 | Midday | 0-8-4-6 | 18 | 9 |
| May 19, 2021 | Evening | 1-4-4-3 | 12 | 3 |
| May 19, 2021 | Midday | 0-4-3-3 | 10 | 1 |
| May 18, 2021 | Evening | 9-3-2-8 | 22 | 4 |
| May 18, 2021 | Midday | 7-9-9-7 | 32 | 5 |
| May 17, 2021 | Evening | 5-6-1-6 | 18 | 9 |
| May 17, 2021 | Midday | 7-7-6-3 | 23 | 5 |
| May 16, 2021 | Evening | 7-1-3-0 | 11 | 2 |
| May 16, 2021 | Midday | 2-7-5-3 | 17 | 8 |
| May 15, 2021 | Evening | 6-7-8-3 | 24 | 6 |
| May 15, 2021 | Midday | 2-3-4-4 | 13 | 4 |