The winning Texas Daily 4 numbers for May 21, 2012 were: day 6-6-1-5; night 1-1-2-0.
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 |
|---|---|---|---|---|
| May 21, 2012 | Night | 1-1-2-0 | 4 | 4 |
| May 21, 2012 | Day | 6-6-1-5 | 18 | 9 |
| May 19, 2012 | Night | 6-5-6-4 | 21 | 3 |
| May 19, 2012 | Day | 8-3-2-5 | 18 | 9 |
| May 18, 2012 | Night | 4-6-6-9 | 25 | 7 |
| May 18, 2012 | Day | 1-9-1-1 | 12 | 3 |
| May 17, 2012 | Night | 8-8-4-4 | 24 | 6 |
| May 17, 2012 | Day | 9-9-1-8 | 27 | 9 |
| May 16, 2012 | Night | 9-6-8-9 | 32 | 5 |
| May 16, 2012 | Day | 4-2-9-9 | 24 | 6 |
| May 15, 2012 | Night | 4-2-5-1 | 12 | 3 |
| May 15, 2012 | Day | 4-8-5-0 | 17 | 8 |