2003 Boston Red Sox season Game log June

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| June 14 | Astros | 8–4 | Redding (4–5) | ||34,562||38–28 |
| June 15 | Astros | 3–2 14 | Bland (1–2) | ||34,085||39–28 |
| June 16 | @ White Sox | 4–2 | Rupe (1–1) | Gordon (1) |
| June 17 | @ White Sox | 7–4 | Colón (6–7) | Lyon (8) |
| June 18 | @ White Sox | 3–1 | Wakefield (5–3) | Koch (9) |
| June 19 | @ White Sox | 4–3 10 | Koch (2–3) | ||17,225||41–30 |
| June 20 | @ Phillies | Postponed | Postponed | Postponed |
| June 21 | @ Phillies | 6–5 13 | Seánez (0–1) | ||35,512||41–31 |
| June 22 | @ Phillies | 5–0 | Kim (2–6) | ||60,960||41–32 |
| June 23 | Tigers | 3–1 | Bonderman (2–11) | Timlin (2) |
| June 24 | Tigers | 10–1 | Cornejo (3–6) | ||33,848||43–32 |
| June 25 | Tigers | 11–2 | Maroth (2–12) | ||33,587||44–32 |