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 | Record |
| --- | --- | --- | --- | --- |
| September 1 | @ Rangers | 9–3 | Darwin (8–7) | 26–52 |
| September 2 | @ Rangers | 4–1 | Leal (4–10) | 26–53 |
| September 3 | @ White Sox | 4–3 | Berenguer (2–7) | 26–54 |
| September 4 | @ White Sox | 6–2 | Lamp (5–3) | 27–54 |
| September 5 | @ White Sox | 3–1 | Baumgarten (5–8) | 28–54 |
| September 6 | @ White Sox | 3–2 | Burns (8–3) | 29–54 |
| September 7 | @ Twins | 4–0 | Berenguer (2–8) | 29–55 |
| September 8 | @ Twins | 1–0 | Stieb (8–10) | 29–56 |
| September 9 | @ Twins | 3–1 | Clancy (5–9) | 29–57 |
| September 10 | Mariners | 2–0 | Clay (0–6) | 30–57 |
| September 11 | Mariners | 8–1 | Berenguer (2–9) | 30–58 |
| September 12 | Mariners | 3–0 | Beattie (2–2) | 31–58 |
| September 14 | Twins | 6–3 | Clancy (5–10) | 31–59 |
| September 15 | Twins | 4–2 | Arroyo (6–8) | 32–59 |
| September 16 | Twins | 5–2 | Berenguer (2–10) | 32–60 |
| September 18 | Angels | 5–1 | Witt (5–9) | 33–60 |
| September 19 | Angels | 6–4 | Frost (1–7) | 34–60 |
| September 20 | Angels | 6–3 | Zahn (9–11) | 35–60 |
| September 21 | Athletics | Postponed (rain) Rescheduled for September 22 | Postponed (rain) Rescheduled for September 22 | Postponed (rain) Rescheduled for September 22 |
| September 22 | Athletics | 3–2 (13) | Leal (7–11) | 35–61 |
| September 22 | Athletics | 4–2 | Berenguer (2–11) | 35–62 |
| September 23 | Athletics | 6–0 | Clancy (6–11) | 35–63 |
| September 25 | @ Angels | 11–5 | Leal (7–12) | 35–64 |
| September 26 | @ Angels | 6–3 | Berenguer (2–12) | 35–65 |
| September 27 | @ Angels | 4–3 | Moreno (1–2) | 36–65 |
| September 29 | @ Athletics | 5–1 | Clancy (6–12) | 36–66 |
| September 30 | @ Athletics | 3–0 | Leal (7–13) | 36–67 |
Question:
Who lost when the mariners played on September 12?
Answer:
Beattie (2–2)