The 1978 Baltimore Orioles season was the 78th season in Baltimore Orioles franchise history, the 25th in Baltimore, and the 25th at Memorial Stadium. The Orioles finished fourth in the American League East with a record of 90 wins and 71 losses.
|-bgcolor=#bbb | â || April 6 || @ Brewers || colspan=7| Postponed (rain); Makeup: April 7 |-bgcolor=#fbb | 1 || April 7 || @ Brewers || 3âÂÂ11 || Augustine (1âÂÂ0) || Flanagan (0âÂÂ1) || || 47,824 || 0âÂÂ1 || L1 |-bgcolor=#fbb | 2 || April 8 || @ Brewers || 3âÂÂ16 || Haas (1âÂÂ0) || D. Martinez (0âÂÂ1) || || 6,470 || 0âÂÂ2 || L2 |-bgcolor=#fbb | 3 || April 9 || @ Brewers || 5âÂÂ13 || Sorensen (1âÂÂ0) || McGregor (0âÂÂ1) || || 18,514 || 0âÂÂ3 || L3 |-bgcolor=#fbb | 4 || April 10 || @ Royals || 2âÂÂ4 || Splittorff (1âÂÂ0) || Briles (0âÂÂ1) || Hrabosky (1) || 38,194 || 0âÂÂ4 || L4 |-bgcolor=#fbb | 5 || April 12 || @ Royals || 2âÂÂ5 || Leonard (1âÂÂ1) || Flanagan (0âÂÂ2) || Mingori (2) || 17,449 || 0âÂÂ5 || L5 |-bgcolor=#bfb | 6 || April 14 || Brewers || 6âÂÂ5 || D. Martinez (1âÂÂ1) || Sorensen (1âÂÂ1) || Stanhouse (1) || 36,086 || 1âÂÂ5 || W1 |-bgcolor=#bfb | 7 || April 15 || Brewers || 7âÂÂ0 || Palmer (1âÂÂ0) || Augustine (2âÂÂ1) || || 7,527 || 2âÂÂ5 || W2 |-bgcolor=#bfb | 8 || April 16 || Brewers || 7âÂÂ5 || Briles (1âÂÂ1) || Haas (2âÂÂ1) || Stanhouse (2) || â || 3âÂÂ5 || W3 |-bgcolor=#fbb | 9 || April 16 || Brewers || 2âÂÂ9 || Replogle (1âÂÂ0) || McGregor (0âÂÂ2) || RodrÃÂguez (1) || 14,995 || 3âÂÂ6 || L1 |-bgcolor=#bfb | 10 || April 17 || @ Yankees || 6âÂÂ1 || Flanagan (1âÂÂ2) || Hunter (0âÂÂ2) || || 15,674 || 4âÂÂ6 || W1 |-bgcolor=#fbb | 11 || April 18 || @ Yankees || 3âÂÂ4 || Lyle (1âÂÂ0) || T. Martinez (0âÂÂ1) || || 15,628 || 4âÂÂ7 || L1 |-bgcolor=#bfb | 12 || April 21 || Royals || 2âÂÂ1 || Palmer (2âÂÂ0) || Leonard (2âÂÂ2) || Stanhouse (3) || 6,203 || 5âÂÂ7 || W1 |-bgcolor=#fbb | 13 || April 22 || Royals || 3âÂÂ5 || Splittorff (4âÂÂ0) || Flanagan (1âÂÂ3) || Hrabosky (4) || 7,277 || 5âÂÂ8 || L1 |-bgcolor=#fbb | 14 || April 23 || Royals || 5âÂÂ6 || Gura (2âÂÂ0) || Stoddard (0âÂÂ1) || Pattin (1) || 13,833 || 5âÂÂ9 || L2 |-bgcolor=#fbb | 15 || April 24 || Yankees || 2âÂÂ8 || Guidry (2âÂÂ0) || McGregor (0âÂÂ3) || || 18,053 || 5âÂÂ10 || L3 |-bgcolor=#fbb | 16 || April 25 || Yankees || 3âÂÂ4 || Beattie (1âÂÂ0) || Palmer (2âÂÂ1) || Lyle (2) || 14,159 || 5âÂÂ11 || L4 |-bgcolor=#bfb | 17 || April 28 || @ White Sox || 6âÂÂ4 || D. Martinez (2âÂÂ1) || Torrealba (1âÂÂ2) || Stanhouse (4) || 25,395 || 6âÂÂ11 || W1 |-bgcolor=#bfb | 18 || April 29 || @ White Sox || 5âÂÂ2 || Palmer (3âÂÂ1) || Kravec (1âÂÂ3) || Stanhouse (5) || 22,240 || 7âÂÂ11 || W2 |-bgcolor=#bfb | 19 || April 30 || @ White Sox || 8âÂÂ7 || McGregor (1âÂÂ3) || Torrealba (1âÂÂ3) || || 17,786 || 8âÂÂ11 || W3
|-bgcolor=#fbb | 20 || May 1 || @ Red Sox || 6âÂÂ9 || Torrez (3âÂÂ1) || Briles (1âÂÂ2) || Stanley (1) || 18,710 || 8âÂÂ12 || L1 |-bgcolor=#bfb | 21 || May 2 || @ Red Sox || 3âÂÂ1 || D. Martinez (3âÂÂ1) || Ripley (0âÂÂ2) || || 19,930 || 9âÂÂ12 || W1 |-bgcolor=#fbb | 22 || May 3 || Rangers || 1âÂÂ2 || Alexander (2âÂÂ1) || Stanhouse (0âÂÂ1) || || 6,118 || 9âÂÂ13 || L1 |-bgcolor=#bbb | â || May 4 || Rangers || colspan=7| Postponed (rain); Makeup: July 15 |-bgcolor=#bfb | 23 || May 5 || Twins || 2âÂÂ1 || Flanagan (2âÂÂ3) || Zahn (2âÂÂ1) || || 3,897 || 10âÂÂ13 || W1 |-bgcolor=#fbb | 24 || May 6 || Twins || 7âÂÂ8 || Thayer (1âÂÂ1) || Stanhouse (0âÂÂ2) || T. Johnson (2) || 26,870 || 10âÂÂ14 || L1 |-bgcolor=#fbb | 25 || May 7 || Twins || 9âÂÂ15 || Scarce (1âÂÂ1) || Palmer (3âÂÂ2) || || 8,923 || 10âÂÂ15 || L2 |-bgcolor=#bbb | â || May 8 || White Sox || colspan=7| Postponed (rain); Makeup: September 1 |-bgcolor=#bbb | â || May 8 || White Sox || colspan=7| Postponed (rain); Makeup: September 2 |-bgcolor=#bfb | 26 || May 10 || Red Sox || 3âÂÂ2 || Flanagan (3âÂÂ3) || Burgmeier (1âÂÂ1) || || 10,023 || 11âÂÂ15 || W1 |-bgcolor=#fbb | 27 || May 11 || Red Sox || 4âÂÂ5 || Lee (5âÂÂ0) || D. Martinez (3âÂÂ2) || Drago (3) || 14,950 || 11âÂÂ16 || L1 |-bgcolor=#fbb | 28 || May 12 || @ Rangers || 3âÂÂ9 || Matlack (3âÂÂ4) || Palmer (3âÂÂ3) || || 30,803 || 11âÂÂ17 || L2 |-bgcolor=#bfb | 29 || May 13 || @ Rangers || 5âÂÂ1 || McGregor (2âÂÂ3) || Umbarger (1âÂÂ2) || || 32,700 || 12âÂÂ17 || W1 |-bgcolor=#bfb | 30 || May 14 || @ Rangers || 3âÂÂ2 || Flinn (1âÂÂ0) || D. Ellis (2âÂÂ2) || Stanhouse (6) || 16,440 || 13âÂÂ17 || W2 |-bgcolor=#fbb | 31 || May 15 || @ Twins || 6âÂÂ9 <small>(10)</small> || Marshall (1âÂÂ0) || Flinn (1âÂÂ1) || || 3,847 || 13âÂÂ18 || L1 |-bgcolor=#fbb | 32 || May 16 || @ Twins || 1âÂÂ8 || Goltz (1âÂÂ3) || Palmer (3âÂÂ4) || T. Johnson (3) || 4,893 || 13âÂÂ19 || L2 |-bgcolor=#bbb | â || May 17 || Blue Jays || colspan=7| Postponed (rain); Makeup: July 5 |-bgcolor=#bfb | 33 || May 18 || Blue Jays || 5âÂÂ3 || Flanagan (4âÂÂ3) || Clancy (2âÂÂ3) || || 4,255 || 14âÂÂ19 || W1 |-bgcolor=#fbb | 34 || May 19 || @ Indians || 5âÂÂ7 || Kern (4âÂÂ1) || Stanhouse (0âÂÂ3) || || 15,565 || 14âÂÂ20 || L1 |-bgcolor=#bfb | 35 || May 20 || @ Indians || 2âÂÂ1 || Palmer (4âÂÂ4) || Wise (2âÂÂ7) || Stanhouse (7) || 11,426 || 15âÂÂ20 || W1 |-bgcolor=#bfb | 36 || May 21 || @ Indians || 3âÂÂ0 || McGregor (3âÂÂ3) || Waits (3âÂÂ3) || || â || 16âÂÂ20 || W2 |-bgcolor=#fbb | 37 || May 21 || @ Indians || 2âÂÂ3 || Clyde (2âÂÂ0) || Briles (1âÂÂ3) || Kinney (5) || 23,206 || 16âÂÂ21 || L1 |-bgcolor=#bfb | 38 || May 23 || Tigers || 2âÂÂ0 || Flanagan (5âÂÂ3) || Billingham (4âÂÂ2) || || 4,536 || 17âÂÂ21 || W1 |-bgcolor=#fbb | 39 || May 24 || Tigers || 2âÂÂ3 || Hiller (4âÂÂ1) || D. Martinez (3âÂÂ3) || || â || 17âÂÂ22 || L1 |-bgcolor=#bfb | 40 || May 24 || Tigers || 1âÂÂ0 || Palmer (5âÂÂ4) || Sykes (3âÂÂ1) || || 8,196 || 18âÂÂ22 || W1 |-bgcolor=#bfb | 41 || May 25 || Tigers || 2âÂÂ1 || McGregor (4âÂÂ3) || Hiller (4âÂÂ2) || || 5,109 || 19âÂÂ22 || W2 |-bgcolor=#bfb | 42 || May 26 || Indians || 4âÂÂ3 || T. Martinez (1âÂÂ1) || Wise (2âÂÂ8) || || 29,215 || 20âÂÂ22 || W3 |-bgcolor=#fbb | 43 || May 27 || Indians || 2âÂÂ6 || Clyde (3âÂÂ0) || Flanagan (5âÂÂ4) || || 8,920 || 20âÂÂ23 || L1 |-bgcolor=#fbb | 44 || May 28 || Indians || 3âÂÂ4 <small>(10)</small> || Monge (2âÂÂ0) || Stanhouse (0âÂÂ4) || || â || 20âÂÂ24 || L2 |-bgcolor=#bfb | 45 || May 28 || Indians || 3âÂÂ0 || Palmer (6âÂÂ4) || Paxton (1âÂÂ3) || || 18,276 || 21âÂÂ24 || W1 |-bgcolor=#bfb | 46 || May 29 || @ Tigers || 6âÂÂ3 || McGregor (5âÂÂ3) || Sykes (3âÂÂ2) || || 20,534 || 22âÂÂ24 || W2 |-bgcolor=#fbb | 47 || May 30 || @ Tigers || 2âÂÂ5 || Baker (1âÂÂ0) || Briles (1âÂÂ4) || Hiller (5) || 10,530 || 22âÂÂ25 || L1 |-bgcolor=#bfb | 48 || May 31 || @ Yankees || 3âÂÂ2 || Flanagan (6âÂÂ4) || Figueroa (5âÂÂ3) || || 21,404 || 23âÂÂ25 || W1
|-bgcolor=#bfb | 49 || June 1 || @ Yankees || 1âÂÂ0 || Palmer (7âÂÂ4) || Beattie (2âÂÂ1) || || 19,943 || 24âÂÂ25 || W2 |-bgcolor=#bfb | 50 || June 2 || @ Mariners || 10âÂÂ9 || D. Martinez (4âÂÂ3) || Colborn (1âÂÂ3) || Stanhouse (8) || 4,936 || 25âÂÂ25 || W3 |-bgcolor=#bfb | 51 || June 3 || @ Mariners || 2âÂÂ1 || McGregor (6âÂÂ3) || Mitchell (2âÂÂ5) || T. Martinez (1) || 15,002 || 26âÂÂ25 || W4 |-bgcolor=#bfb | 52 || June 4 || @ Mariners || 4âÂÂ1 || Flanagan (7âÂÂ4) || Pole (4âÂÂ6) || || 6,429 || 27âÂÂ25 || W5 |-bgcolor=#bfb | 53 || June 5 || @ Angels || 6âÂÂ2 <small>(10)</small> || Stanhouse (1âÂÂ4) || LaRoche (3âÂÂ2) || || 13,231 || 28âÂÂ25 || W6 |-bgcolor=#bfb | 54 || June 6 || @ Angels || 8âÂÂ6 || D. Martinez (5âÂÂ3) || Ryan (3âÂÂ6) || Stanhouse (9) || 15,864 || 29âÂÂ25 || W7 |-bgcolor=#bfb | 55 || June 9 || @ Athletics || 5âÂÂ3 || Flanagan (8âÂÂ4) || Broberg (6âÂÂ5) || || 3,323 || 30âÂÂ25 || W8 |-bgcolor=#bfb | 56 || June 10 || @ Athletics || 1âÂÂ0 || Palmer (8âÂÂ4) || Renko (1âÂÂ2) || || 11,422 || 31âÂÂ25 || W9 |-bgcolor=#bfb | 57 || June 11 || @ Athletics || 3âÂÂ0 || McGregor (7âÂÂ3) || Morgan (0âÂÂ1) || || 17,157 || 32âÂÂ25 || W10 |-bgcolor=#bfb | 58 || June 12 || Mariners || 5âÂÂ4 || T. Martinez (2âÂÂ1) || Colborn (1âÂÂ5) || Stanhouse (10) || 13,212 || 33âÂÂ25 || W11 |-bgcolor=#bfb | 59 || June 13 || Mariners || 3âÂÂ2 <small>(11)</small> || Flanagan (9âÂÂ4) || Romo (3âÂÂ2) || || 7,729 || 34âÂÂ25 || W12 |-bgcolor=#bfb | 60 || June 14 || Angels || 5âÂÂ2 || Palmer (9âÂÂ4) || Brett (2âÂÂ4) || || 21,815 || 35âÂÂ25 || W13 |-bgcolor=#fbb | 61 || June 15 || Angels || 1âÂÂ5 || Tanana (10âÂÂ3) || McGregor (7âÂÂ4) || || 15,004 || 35âÂÂ26 || L1
|-bgcolor=#bbb | â || July 2 || Red Sox || colspan=7| Postponed (rain); Makeup: September 6
|-bgcolor=#bfb | 161 || October 1 || @ Tigers || 4âÂÂ2 || D. Martinez (16âÂÂ11) || Rozema (9âÂÂ12) || || 13,948 || 90âÂÂ71 || W1
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
<small>LEAGUE CHAMPIONS: Miami</small>