The winning Texas Pick 3 numbers for May 21, 1997 were: night 6-5-1.
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).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| May 21, 1997 | Night | 6-5-1 | 12 | 3 |
| May 20, 1997 | Night | 5-7-2 | 14 | 5 |
| May 19, 1997 | Night | 9-1-9 | 19 | 1 |
| May 17, 1997 | Night | 0-0-3 | 3 | 3 |
| May 16, 1997 | Night | 4-2-4 | 10 | 1 |
| May 15, 1997 | Night | 4-8-1 | 13 | 4 |