Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Opponent | Score | Loss | Attendance | Record |
| --- | --- | --- | --- | --- | --- |
| March 31 | Rangers | 5 - 2 | Millwood (0-1) | 46334.0 | 1-0 |
| April 1 | Rangers | 5 - 4 | Putz (0-1) | 25204.0 | 1-1 |
| April 2 | Rangers | 4 - 1 | Jennings (0-1) | 21349.0 | 2-1 |
| April 4 | @ Orioles | 7 - 4 | Washburn (0-1) | 14429.0 | 2-2 |
| April 5 | @ Orioles | 6 - 4 | Batista (0-1) | 24824.0 | 2-3 |
| April 6 | @ Orioles | 3 - 2 | Lowe (0-1) | 19215.0 | 2-4 |
| April 7 | @ Orioles | 5 - 4 | O'Flaherty (0-1) | 10774.0 | 2-5 |
| April 8 | @ Rays | 6 - 5 | Glover (0-1) | 36048.0 | 3-5 |
| April 9 | @ Rays | 7 - 1 | Sonnanstine | 12106.0 | 4-5 |
| April 10 | @ Rays | 7 - 0 | Batista (0-2) | 11898.0 | 4-6 |
| April 11 | Angels | 8 - 5 | Weaver (1-2) | 28915.0 | 5-6 |
| April 12 | Angels | 8 - 3 | Garland (1-2) | 34963.0 | 6-6 |
| April 13 | Angels | 10 - 5 | Baek (0-1) | 30664.0 | 6-7 |
| April 14 | Royals | 5 - 1 | Washburn (1-2) | 16751.0 | 6-8 |
| April 15 | Royals | 11 - 6 | Bale (0-3) | 17137.0 | 7-8 |
| April 16 | @ Athletics | 4 - 2 | Blanton (1-3) | 21126.0 | 8-8 |
| April 17 | @ Athletics | 8 - 1 | DiNardo (1-1) | 10164.0 | 9-8 |
| April 18 | @ Angels | 5 - 4 | Dickey (0-1) | 43939.0 | 9-9 |
| April 19 | @ Angels | 4 - 1 | Washburn (1-2) | 43959.0 | 9-10 |
| April 20 | @ Angels | 4 - 2 | Moseley (1-2) | 43631.0 | 10-10 |
| April 22 | Orioles | 4 - 2 | Guthrie (0-2) | 17780.0 | 11-10 |
| April 23 | Orioles | 3 - 2 | Rowland-Smith (0-1) | 16823.0 | 11-11 |
| April 24 | Orioles | 8 - 7 | Green (1-1) | 16727.0 | 11-12 |
| April 25 | Athletics | 4 - 3 | Batista (2-3) | 40845.0 | 11-13 |
| April 26 | Athletics | 5 - 3 | Duchscherer (1-1) | 37563.0 | 12-13 |
| April 27 | Athletics | 4 - 2 | Hernández (2-1) | 32612.0 | 12-14 |
| April 29 | @ Indians | 7 - 2 | Betancourt (1-1) | 13827.0 | 13-14 |
| April 30 | @ Indians | 8 - 3 | Washburn (1-4) | 15279.0 | 13-15 |
Question:
What day is their record 13-15?
Answer:
April 30