|| 42–33 |- style="background:#fbb" | 76 || June 30 || Astros || 0–7 || Mike LaCoss (3–0) || Charles Hudson (7–6) || Dave Smith (3) || 23,483 || 42–34 |- |- style="background:#fbb" | 77 || July 1 || Astros || 1–13 || Joe Niekro (8–7) || Kevin Gross (4–3) || None || 24,737 || 42–35 |- style="background:#bfb" | 78 || July 2 || Reds || 4–0 || Shane Rawley (3–3) || Tom Hume (3–8) || None || 21,381 || 43–35 |- style="background:#fbb" | 79 || July 3 || Reds || 5–6 || Charlie Puleo (1–1) || Jerry Koosman (8–7) || None || 63,816 || 43–36 |- style="background:#fbb" | 80 || July 4 || Reds || 4–5 (10) || Ted Power (5–4) || Al Holland (4–5) || None || 20,785 || 43–37 |- style="background:#bfb" | 81 || July 5 || Braves || 1–0 (7) || Charles Hudson (8–6) || Rick Mahler (6–4) || None || 21,393 || 44–37 |- style="background:#fbb" | 82 || July 6 || Braves || 0–5 || Pascual Pérez (9–3) || Kevin Gross (4–4) || None || 22,393 || 44–38 |- style="background:#fbb" | 83 || July 7 || Braves || 2–5 || Rick Camp (4–1) || Shane Rawley (3–4) || Donnie Moore (9) || 27,141 || 44–39 |- style="background:#bfb" | 84 || July 8 || Braves || 7–0 || Jerry Koosman (9–7) || Craig McMurtry (7–9) || None || 38,070 || 45–39 |- style="background:#bbcaff;" | – || July 10 ||colspan="7" |1984 Major League Baseball All-Star Game at Candlestick Park in San Francisco |- style="background:#bfb" | 85 || July 12 || @ Astros || 5–3 || Steve Carlton (7–4) || Joe Niekro (9–8) || Al Holland (18) || 17,036 || 46–39 |- style="background:#bfb" | 86 || July 13 || @ Astros || 7–3 || Shane Rawley (4–4) || Nolan Ryan (7–5) || Larry Andersen (3) || 23,758 || 47–39 |- style="background:#bfb" | 87 || July 14 || @ Astros || 4–3 || Jerry Koosman (10–7) || Vern Ruhle (1–7) || Al Holland (19) || 29,211 || 48–39 |- style="background:#fbb" | 88 || July 15 || @ Astros || 2–3 (16) || Frank DiPino (3–5) || Don Carman (0–1) || None || 15,276 || 48–40 |- style="background:#bfb" | 89 || July 16 || @ Reds || 7–2 || Kevin Gross (5–4) || Tom Hume (3–9) || None || 15,460 || 49–40 |- style="background:#bfb" | 90 || July 17 || @