The winning Oregon Pick 4 numbers for May 15, 2015 were: midday 7-4-4-9; day 0-5-2-5; evening 9-5-6-9; night 5-4-7-9.
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).
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 15, 2015 | Night | 5-4-7-9 | 25 | 7 |
| May 15, 2015 | Evening | 9-5-6-9 | 29 | 2 |
| May 15, 2015 | Day | 0-5-2-5 | 12 | 3 |
| May 15, 2015 | Midday | 7-4-4-9 | 24 | 6 |
| May 14, 2015 | Night | 4-4-4-4 | 16 | 7 |
| May 14, 2015 | Evening | 3-4-9-9 | 25 | 7 |
| May 14, 2015 | Day | 4-6-1-9 | 20 | 2 |
| May 14, 2015 | Midday | 4-6-7-8 | 25 | 7 |
| May 13, 2015 | Night | 4-3-0-1 | 8 | 8 |
| May 13, 2015 | Evening | 8-4-8-1 | 21 | 3 |
| May 13, 2015 | Day | 3-0-7-9 | 19 | 1 |
| May 13, 2015 | Midday | 4-1-9-4 | 18 | 9 |
| May 12, 2015 | Night | 1-5-6-9 | 21 | 3 |
| May 12, 2015 | Evening | 1-9-3-7 | 20 | 2 |
| May 12, 2015 | Day | 1-1-8-3 | 13 | 4 |
| May 12, 2015 | Midday | 1-0-2-7 | 10 | 1 |
| May 11, 2015 | Night | 8-2-0-4 | 14 | 5 |
| May 11, 2015 | Evening | 0-7-3-2 | 12 | 3 |
| May 11, 2015 | Day | 2-7-8-4 | 21 | 3 |
| May 11, 2015 | Midday | 3-8-1-6 | 18 | 9 |
| May 10, 2015 | Night | 0-6-7-5 | 18 | 9 |
| May 10, 2015 | Evening | 8-9-1-0 | 18 | 9 |
| May 10, 2015 | Day | 7-1-0-8 | 16 | 7 |
| May 10, 2015 | Midday | 4-6-7-7 | 24 | 6 |
| May 9, 2015 | Night | 9-0-5-6 | 20 | 2 |
| May 9, 2015 | Evening | 1-3-9-6 | 19 | 1 |
| May 9, 2015 | Day | 6-7-1-6 | 20 | 2 |
| May 9, 2015 | Midday | 5-4-2-5 | 16 | 7 |