Avery (4–2) || Mark Leiter (15) || 28,079 || 39–36 |- style="background:#fbb" | 76 || June 25 || Red Sox || 5–7 || Bret Saberhagen (9–5) || Matt Beech (3–5) || Ron Mahay (1) || 28,263 || 39–37 |- style="background:#bfb" | 77 || June 26 || Devil Rays || 7–0 || Tyler Green (6–4) || Jason Johnson (2–5) || None || 17,559 || 40–37 |- style="background:#fbb" | 78 || June 27 || Devil Rays || 1–5 || Rolando Arrojo (10–4) || Curt Schilling (7–8) || None || 44,262 || 40–38 |- style="background:#fbb" | 79 || June 28 || Devil Rays || 4–5 || Albie Lopez (4–2) || Wayne Gomes (6–3) || Roberto Hernández (17) || 25,157 || 40–39 |- style="background:#fbb" | 80 || June 30 || @ Yankees || 2–9 || David Cone (11–2) || Carlton Loewer (2–1) || None || 29,087 || 40–40 |- |- style="background:#fbb" | 81 || July 1 || @ Yankees || 2–5 || David Wells (11–2) || Matt Beech (3–6) || Mariano Rivera (20) || 28,919 || 40–41 |- style="background:#fbb" | 82 || July 2 || @ Yankees || 8–9 (11) || Mike Buddie (3–0) || Jerry Spradlin (3–4) || None || 31,259 || 40–42 |- style="background:#bfb" | 83 || July 3 || Brewers || 2–0 || Curt Schilling (8–8) || Scott Karl (6–4) || Mark Leiter (16) || 55,393 || 41–42 |- style="background:#bfb" | 84 || July 4 || Brewers || 6–5 || Wayne Gomes (7–3) || Bob Wickman (3–5) || None || 35,596 || 42–42 |- style="background:#bfb" | 85 || July 5 || Brewers || 4–3 || Carlton Loewer (3–1) || Cal Eldred (4–6) || Mark Leiter (17) || 20,116 || 43–42 |- style="background:#bbcaff;" | – || July 7 ||colspan="7" |1998 Major League Baseball All-Star Game at Coors Field in Denver |- style="background:#bfb" | 86 || July 10 || @ Pirates || 7–6 || Curt Schilling (9–8) || Francisco Córdova (6–8) || None || 18,665 || 44–42 |- style="background:#bfb" | 87 || July 11 || @ Pirates || 1–0 || Mark Portugal (4–2) || Rich Loiselle (1–7) || Mark Leiter (18) || 30,084 || 45–42 |- style="background:#bfb" | 88 || July 12 || @ Pirates || 10–4 || Carlton Loewer (4–1) || Esteban Loaiza (6–5) || None || 34,144 || 46–42 |- style="background:#fbb" | 89 || July 13 || @ Brewers || 2–4 || Steve Woodard (6–5) || Tyler Green (6–5) || Bob