(2) || 47,315 || 50–41 |- style="background:#bbcaff;" | – || July 17 ||colspan="7" |1979 Major League Baseball All-Star Game at the Kingdome in Seattle |- style="background:#fbb" | 93 || July 19 || @ Giants || 0–1 || John Curtis (6–5) || Dickie Noles (2–2) || None || 20,732 || 50–42 |- style="background:#bfb" | 94 || July 20 || @ Giants || 6–4 || Randy Lerch (6–8) || Tom Griffin (4–5) || Ron Reed (3) || 21,110 || 51–42 |- style="background:#fbb" | 95 || July 21 || @ Giants || 1–4 || Bob Knepper (7–4) || Steve Carlton (11–9) || None || 25,386 || 51–43 |- style="background:#bfb" | 96 || July 22 || @ Padres || 5–2 || Nino Espinosa (10–7) || John D'Acquisto (6–7) || Tug McGraw (13) || 23,308 || 52–43 |- style="background:#fbb" | 97 || July 23 || @ Padres || 5–6 || Rollie Fingers (8–7) || Ron Reed (6–5) || None || 16,785 || 52–44 |- style="background:#fbb" | 98 || July 24 || @ Dodgers || 3–15 || Burt Hooton (9–7) || Randy Lerch (6–9) || None || 39,336 || 52–45 |- style="background:#fbb" | 99 || July 25 || @ Dodgers || 8–16 || Rick Sutcliffe (9–8) || Dick Ruthven (7–5) || None || 34,370 || 52–46 |- style="background:#fbb" | 100 || July 27 || Cardinals || 0–5 || Bob Forsch (4–9) || Nino Espinosa (10–8) || None || 40,792 || 52–47 |- style="background:#fbb" | 101 || July 28 || Cardinals || 4–5 || Mark Littell (7–3) || Ron Reed (6–6) || None || 40,063 || 52–48 |- style="background:#fbb" | 102 || July 29 || Cardinals || 5–6 || Pete Vuckovich (10–7) || Randy Lerch (6–10) || None || 38,069 || 52–49 |- style="background:#bfb" | 103 || July 30 || Cubs || 5–4 (10) || Ron Reed (7–6) || Bruce Sutter (4–3) || None || 37,151 || 53–49 |- style="background:#bfb" | 104 || July 31 || Cubs || 4–1 || Nino Espinosa (11–8) || Mike Krukow (8–6) || None || 37,412 || 54–49 |- |- style="background:#bfb" | 105 || August 1 || @ Mets || 9–6 || Dickie Noles (3–2) || Dock Ellis (2–9) || Rawly Eastwick (3) || 12,295 || 55–49 |- style="background:#bfb" | 106 || August 2 (1) || @ Mets || 7–4 || Ron Reed (8–6) || Andy Hassler (4–5) || None || see 2nd game || 56–49 |- style="background:#fbb" | 107 || August