The winning Louisiana Pick 4 numbers for March 15, 2011 were: evening 8-4-7-3.
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).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| Mar 15, 2011 | Evening | 8-4-7-3 | 22 | 4 |
| Mar 14, 2011 | Evening | 8-1-5-6 | 20 | 2 |
| Mar 13, 2011 | Evening | 0-4-9-6 | 19 | 1 |
| Mar 12, 2011 | Evening | 0-7-3-5 | 15 | 6 |
| Mar 11, 2011 | Evening | 7-4-4-7 | 22 | 4 |
| Mar 10, 2011 | Evening | 2-1-1-8 | 12 | 3 |
| Mar 9, 2011 | Evening | 6-6-9-0 | 21 | 3 |