The 1978 Kansas City Royals season was their tenth in Major League Baseball. The Royals won their third consecutive American League West title with a record of 92âÂÂ70. For the third postseason in a row, Kansas City lost to the New York Yankees, falling 3âÂÂ1 in the ALCS.
|-style="background:#fcc;" | 1 || || 7:30p.m. CDT || Yankees || L 1âÂÂ7 || Beattie (1âÂÂ0) || Leonard (0âÂÂ1) || Clay (1) || 2:57 || 41,143 || NYY 1âÂÂ0 || L1 |-style="background:#cfc;" | 2 || || 2:30p.m. CDT || Yankees || W 10âÂÂ4 || Gura (1âÂÂ0) || Figueroa (0âÂÂ1) || â || 2:42 || 41,158 || Tied 1âÂÂ1 || W1 |-style="background:#fcc;" | 3 || || 2:30p.m. CDT || @ Yankees || L 5âÂÂ6 || Gossage (1âÂÂ0) || Bird (0âÂÂ1) || â || 2:13 || 55,445 || NYY 2âÂÂ1 || L1 |-style="background:#fcc;" | 4 || || 7:30p.m. CDT || @ Yankees || L 1âÂÂ2 || Guidry (1âÂÂ0) || Leonard (0âÂÂ2) || Gossage (1) || 2:20 || 56,356 || NYY 3âÂÂ1 || L2 |-
|- style="text-align:center;" | Legend: = Win = Loss <br>Bold = Royals team member
Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in
Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts
October 3: Royals Stadium
October 4: Royals Stadium
October 6: Yankee Stadium
October 7: Yankee Stadium
<small>LEAGUE CHAMPIONS: Omaha</small>