|- style="background:#bfb" | 152 || September 20 || @ Expos || 6–4 || Woodie Fryman (12–14) || Mike Wegener (5–13) || None || 12,624 || 61–91 |- style="background:#fbb" | 153 || September 21 || @ Expos || 6–7 || Dan McGinn (7–10) || Lowell Palmer (2–7) || None || 15,822 || 61–92 |- style="background:#bfb" | 154 || September 23 || @ Pirates || 4–3 || Grant Jackson (14–16) || Bob Veale (13–13) || Jerry Johnson (1) || 2,364 || 62–92 |- style="background:#bbb" | – || September 24 || @ Pirates || colspan=6 | Postponed (rain); Makeup: September 25 as a traditional double-header |- style="background:#fbb" | 155 || September 25 (1) || @ Pirates || 3–5 || Luke Walker (4–6) || Rick Wise (14–13) || None || see 2nd game || 62–93 |- style="background:#fbb" | 156 || September 25 (2) || @ Pirates || 7–9 || Bob Moose (13–3) || Jeff James (2–2) || Joe Gibbon (11) || 2,379 || 62–94 |- style="background:#fbb" | 157 || September 26 || Mets || 0–5 || Jerry Koosman (17–9) || Woodie Fryman (12–15) || None || 6,288 || 62–95 |- style="background:#fbb" | 158 || September 27 || Mets || 0–1 || Tom Seaver (25–7) || Grant Jackson (14–17) || None || 4,297 || 62–96 |- style="background:#fbb" | 159 || September 28 || Mets || 0–2 || Gary Gentry (13–12) || Jerry Johnson (6–13) || Ron Taylor (13) || 6,875 || 62–97 |- style="background:#bfb" | 160 || September 30 || @ Cardinals || 4–3 || Rick Wise (15–13) || Santiago Guzmán (0–1) || None || 9,891 || 63–97 |- |- style="background:#fbb" | 161 || October 1 || @ Cardinals || 5–6 || Joe Hoerner (2–3) || Lowell Palmer (2–8) || None || 7,810 || 63–98 |- style="background:#fbb" | 162 || October 2 || @ Cardinals || 2–3 (12) || Bob Gibson (20–13) || Grant Jackson' (14–18) || None || 11,680 || 63–99 |- Roster Player stats Batting Starters by position Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in Other batters Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in Pitching Starting pitchers Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA =