2003 American League Championship Series
Team (Wins) Managers Season New York Yankees (4) Joe Torre 101–61, .623, GA: 6 Boston Red Sox (3) Grady Little 95–67, .586, GB: 6
Dates	October 8–16
MVP	Mariano Rivera (New York)
Umpires	Tim McClelland Terry Craft Alfonso Márquez Derryl Cousins Joe West Ángel Hernández
Broadcast
Television	Fox (United States) MLB International (International)
TV announcers	Joe Buck,Tim McCarver,Bret Boone andChris Myers (Fox) Gary Thorne andRick Sutcliffe (MLB International)
Radio	ESPN
Radio announcers	Jon Miller andJoe Morgan
ALDS	New York Yankees overMinnesota Twins (3–1) Boston Red Sox overOakland Athletics (3–2)
← 2002 ALCS 2004 →

The2003American League Championship Series (ALCS) was a semifinal series inMajor League Baseball's2003 postseason played between the Wild CardBoston Red Sox and the top-seededNew York Yankees from October 8 to 16, 2003. It was the second postseason meeting of theYankees-Red Sox rivalry. The Yankees won the series four games to three to advance to theWorld Series, where they lost in six games to the National League championFlorida Marlins.

This was the last time the Yankees defeated the Red Sox in the postseason until2025.

This series delivered yet another blow to Red Sox fans' hopes of winning aWorld Series forthe first time since 1918. The series seemed evenly matched, with the lead being held first by the Red Sox, then by the Yankees.^[1] The Sox forced the series to a full seven games, with the seventh game setting another major league record for therivalry between the two teams: it marked the first time two major league teams played more than 25 games against each other over the course of a single season.^[2] The Red Sox also set an ALCS record with 12home runs in the series.

New York won the series, 4–3.

Tim Wakefield shut the Bronx Bombers down for six innings in Game 1, allowing only back-to-back one-out singles toJorge Posada andHideki Matsui in the second. Mike Mussina pitched three shutout innings before allowing a leadoff single to Manny Ramirez in the fourth, when the Red Sox began to flex their muscles. David Ortiz homered into the third deck in right field to put the Red Sox up 2–0. Next inning, Todd Walker drove Mussina's first pitch down the right-field line; the ball appeared to strike the foul pole, but was called foul by right field umpire Angel Hernandez. Home plate umpireTim McClelland immediately overruled him, and awarded Walker home plate. Ramirez followed with a home run later that inning to put the Red Sox ahead 4–0.^[3] In the top of the seventh,Jeff Nelson allowed a two-out single to Ramirez and hit Ortiz with a pitch before Kevin Millar's RBI single made it 5-0 Boston. In the bottom of the inning, Wakefield walked Jason Giambi and Bernie Williams before being relieved by Alan Embree, who allowed an RBI double to Posada and sacrifice fly to Matsui to make it 5-2 Boston. But the Yankees did not score again and the Red Sox took a 1–0 series lead, withScott Williamson earning the save.

After leaving the bases loaded in the first, the Red Sox took a 1–0 lead in the second offAndy Pettitte whenJason Varitek hit a leadoff double, moved to third onTrot Nixon's single, and scored onDamian Jackson's single. In the bottom of the inning,Derek Lowe issued a leadoff walk toJorge Posada and one out later,Nick Johnson's home run put the Yankees up 2-1. Next inning, Lowe allowed three consecutive one-out singles, the last of which, byBernie Williams, scoredDerek Jeter to make it 3-1 Yankees. In the fifth, Williams doubled with one out and scored on a single byHideki Matsui, who was tagged out at second to end the inning. Varitek's home run in the sixth off Pettitte made it 4-2 Yankees. In the seventh, Lowe allowed a two-out single toJason Giambi and walked Williams before being relieved byScott Sauerbeck, who allowed a two-run double to Posada to make it 6-2 Yankees. Their lead held, tying the series at 1-1 heading to Boston.

Game 3 was highly anticipated, a classic matchup between Sox acePedro Martínez and former Sox pitcherRoger Clemens, who, on the cusp of retirement, was thought to be pitching his last game at Fenway Park. Early on,Karim Garcia was hit in the back by a Martínez fastball. Words were exchanged and Martínez threateningly gestured towards Yankee catcherJorge Posada. When Garcia was forced out at second, he slid hard intoTodd Walker. The following inning,Manny Ramírez took exception to a high Clemens pitch and charged the mound. Both benches cleared, and the resulting brawl turned surreal when 72-year-old Yankee bench coachDon Zimmer charged Martínez. Martínez sidestepped Zimmer, placed his hands on Zimmer's head and propelled Zimmer to the ground. The Zimmer/Martinez altercation ended there as Yankee trainerGene Monahan and various Yankee players attended to him. After a 13-minute delay, during which Fenway Park stopped all beer sales for the remainder of the game, Clemens struck out Ramirez and proceeded to pitch effectively as the Yankees held a lead. The game did not end quietly: a Fenway groundskeeper got into a scuffle with Yankee reliever Jeff Nelson and Garcia in the middle of the 9th inning in the bullpen area. The employee had cheered a double play the Red Sox turned and Nelson was upset; the employee was taken to the hospital with cleat marks on his back and arm, while Garcia left with a cut hand.^[5]

In the bottom of the first, Clemens allowed a leadoff single toJohnny Damon and subsequent double toTodd Walker. AfterNomar Garciaparra struck out, Ramirez's double put the Red Sox up 2-0. The Yankees cut it to 2–1 in the second off Martinez when Posada hit a leadoff double and scored on Garcia's single two outs later. Jeter's home run next inning tied the game. In the fourth, Posada drew a leadoff walk, moved to third on Nick Johnson's single, and scored on Matsui's ground-rule double. After Garcia was hit by a pitch to load the bases,Alfonso Soriano hit into a double play that scored Johnson and put the Yankees up 4-2. In the bottom of the seventh, relieverFélix Heredia issued a leadoff walk to Ortiz.Jose Contreras relieved Heredia and allowed a single toKevin Millar that moved Ortiz to third. Ortiz scored when Trot Nixon hit into a double play to make it 4-3 Yankees. Their lead held, though, putting them up 2–1 in the series.

Rain postponed Game 4 from Sunday, October 12, to Monday, October 13. The Red Sox went up 1–0 onTodd Walker's second home run of the series in the fourth off Mike Mussina. In the top of the fifth, Tim Wakefield allowed back-to-back one-hit singles before Jeter's double tied the game and put runners on second and third. Bernie Williams walked with two outs to load the bases, but Posada lined out to left to end the inning. In the bottom half, Nixon's home run put the Red Sox up 2-1. They loaded the bases in the seventh off Mussina on a double and two walks with one out when Varitek hit into a force out at second, narrowly beating Soriano's throw to first to avoid a double play and allow Millar to score to make it 3-1. Ruben Sierra's one-out home run in the ninth off Scott Williamson made it 3-2, but Williamson struck outDavid Dellucci and Soriano to end the game, pick up his second save of the series, and tie the series at 2-2.

The Yankees loaded the bases in the second off Derek Lowe on two walks and a hit when Garcia's single scored two, then Soriano's single scored another. Ramirez's leadoff home run in the fourth off David Wells made it 3-1. They made it 4–1 in the eighth when Bernie Williams reached on a force out at second, moved to third on Posada's single and scored on Matsui's groundout off Alan Embree. In the bottom of the inning, Todd Walker hit a leadoff triple off Mariano Rivera and scored on Garciaparra's groundout to make it 4-2 Yankees. Rivera, though, shut out the Red Sox for the rest of the game, leaving the Yankees one win away from the World Series.

Jason Giambi's two-out home run in the first offJohn Burkett put the Yankees up 1-0, but Varitek's leadoff home run in the third off Andy Pettitte tied the score. The Red Sox loaded the bases with one out on two walks and a single before Ortiz's single scored two and Millar's single scored another to put them up 4-1. In the bottom of the fourth, Posada and Matsui hit back-to-back one-out singles before Nick Johnson's double andAaron Boone's groundout scored a run each. Garciaparra's error allowed Garcia to reach base before Soriano's two-run double put the Yankees on top, 5-4, and ended Burkett's night. Posada's home run next inning offBronson Arroyo made it 6-4 Yankees. In the top of the seventh, Garciaparra hit a leadoff triple off Jose Contreras and scored on Matsui's errant throw to third. Ramirez then doubled, moved to third on a wild pitch, and scored on Ortiz's single to tie the game. After allowing a one-out single toBill Mueller, Contreras was relieved by Félix Heredia, who struck out Trot Nixon, but threw a wild pitch that put runners on second and third. After intentionally walking Varitek to load the bases, Heredia walked Damon to force in a run and put the Red Sox up 7-6. They added insurance in the ninth when Mueller doubled with one out off Jeff Nelson.Gabe White relieved Nelson and allowed a home run to Nixon to make it 9-6. Scott Williamson retired the Yankees in order in the bottom half for his third save of the series, forcing a Game 7.

In the Martinez–Clemens rematch of Game 3, Clemens allowed a one-out single to Millar before Nixon's home run put Boston up 2-0. After Mueller struck out, Varitek doubled and scored on third basemanEnrique Wilson's throwing error to first on Damon's ground ball. Millar's leadoff home run in the fourth made it 4-0 Boston. Nixon then walked and moved to third on Mueller's single to knock Clemens out of the game. In the first relief appearance of his career,Mike Mussina cleaned up Clemens's mess by striking out Varitek and inducing a Johnny Damon double play. His three innings of scoreless relief, and home runs in the fifth and seventh innings by Giambi kept the Yankees in the game.

But in the eighth inning, with the Red Sox leading 5–2 after Ortiz homered in the top half offDavid Wells, things unraveled for Boston. Sox managerGrady Little kept a tiring Martínez in for the eighth, a controversial move still discussed years later.^[1] Little had two relievers who had shown effectiveness in the games leading up to the seventh game—Scott Williamson andMike Timlin (who had not allowed a single hit in the playoffs),^[1] but both had experienced stretches of ineffectiveness during the season, while Martínez had Hall of Fame credentials.^[10] Critics of the move note that Martínez had experienced diminished effectiveness in the late innings of games in which he had thrown more than 100 pitches.^[10] After Martínez recorded the first out of the inning, he gave up a double to Jeter and an RBI single toBernie Williams, prompting Little to go to the mound.^[1] To the surprise of many, Little left Martínez in the game, leaving leftyAlan Embree in the bullpen with the left-handed Matsui coming to the plate.^[1] Martínez gave up a ground rule double to Matsui and a two-run bloop double to Posada to tie the game, sending it to extra innings.Mariano Rivera came in for the ninth and pitched three shutout innings.^[10]

Tim Wakefield pitched a scoreless tenth for Boston and in the bottom of the 11th facedAaron Boone, who had entered earlier as a pinch-runner. On Wakefield's first pitch of the inning, Boone launched awalk-off home run into the left field seats, sending the Yankees to the World Series.Fox Sports displayed a collection of images thereafter: tears welling up in the eyes of Aaron's brother,Seattle Mariners infielderBret Boone (the guest announcer), ALCS MVP Rivera running to the mound and collapsing on it in joy, Boone jumping on home plate, and Rivera being carried off on his teammates' shoulders.^[11]

Boone became just the second player in MLB history to end a Game 7 of a postseason series with a walk-off home run; the only other player isBill Mazeroski, who did so in the1960 World Series for thePittsburgh Pirates (ironically against the Yankees).

John Sterling: Well, we’re tied at five as we go to the bottom of the eleventh; here's Aaron Boone to lead off.

Charley Steiner: His first at bat of the game; there's a fly ball deep to left, it's on its way! There it goes, and the Yankees are going to the World Series! Aaron Boone has hit a home run! The Yankees go to the World Series for the thirty-ninth time in their remarkable history! Aaron Boone down the left field line; they are waiting for him at home plate, and now he dives into the scrum! The Yankees win it, six to five!
Sterling: Ballgame over! American League Championship Series over! Yankees win…

Together: Theeeeee Yankees win!

• The radio call of Boone's home run over the Yankees Radio Network

2003 ALCS(4–3):New York Yankees overBoston Red Sox

Note: GP=Games Played; AB=At Bats; R=Runs; H=Hits; 2B=Doubles; 3B=Triples; HR=Home Runs; RBI=Runs Batted In; BB=Walks; AVG=Batting Average; OBP=On Base Percentage; SLG=Slugging Percentage

Note: G=Games Played; GS=Games Started; IP=Innings Pitched; H=Hits; BB=Walks; R=Runs; ER=Earned Runs; SO=Strikeouts; W=Wins; L=Losses; SV=Saves; ERA=Earned Run Average

Note: GP=Games Played; AB=At Bats; R=Runs; H=Hits; 2B=Doubles; 3B=Triples; HR=Home Runs; RBI=Runs Batted In; BB=Walks; AVG=Batting Average; OBP=On Base Percentage; SLG=Slugging Percentage

Note: G=Games Played; GS=Games Started; IP=Innings Pitched; H=Hits; BB=Walks; R=Runs; ER=Earned Runs; SO=Strikeouts; W=Wins; L=Losses; SV=Saves; ERA=Earned Run Average

The series is widely considered one of the most devastating losses inBoston sports history.^[10][57] The loss was crushing for Red Sox fans, many of whom blamed Little for leaving Martínez in the game since Martínez had experienced difficulty beyond 100 pitches.^[1] In his bookNow I Can Die in Peace,Bill Simmons writes that the Boston owners andTheo Epstein had ordered Little to remove Martínez from the game when he finished the seventh inning and/or topped the three-digit pitch count. Martínez was sure he would not be called on for the eighth inning, but agreed to pitch when Little asked. After the game, Little reportedly prophetically told Martínez, "Petey, I might not be here anymore." Little defended his move by saying he felt that even a tired Martínez was the best option. Little's defenders also noted that the Red Sox offense collapsed in the game, as the club scored only two runs in the last nine innings, and also noted Damon's poor defensive play in center field during the crucial inning.^[1] Others have noted that by staying with a physically fragile pitcher in an ultimate game with two runners on base, a three-run lead, a rested pitcher who had performed well in the postseason ready in the bullpen and the other team's MVP on deck, Little did exactly what Hall of Fame manager Walter Alston did with Sandy Koufax in Game 7 of the1965 World Series, which Alston's Dodgers won. Little's contract was not renewed after the season and he was replaced byTerry Francona.^[58] Little went on to manage theLos Angeles Dodgers before being replaced byJoe Torre after the 2007 season.^[59]

Boone's pennant-clinching home run often draws comparisons to another famous Yankee home run against the Red Sox in the postseason: the oneBucky Dent hit in a one-game playoff between the two teams that decided theAmerican League East division title in 1978. But theYankees won theWorld Series that year, against theDodgers. As with Dent, Boone has had the expletive "Fucking" assigned as a middle name by Red Sox fans in the following years. As a player for the Yankees, this would be Boone's final big moment for the team as he tore his ACL playing pick-up basketball before the start of next season and was replaced byAlex Rodriguez.

Until the final game of the pennant race, some baseball fans had been hoping for a rematch of the1918 World Series^[10] between the Red Sox and theChicago Cubs, one of only two major league teams to have played for a longer period of time since winning the World Series (the other was theChicago White Sox, who won the Series in2005).^[10] The Cubs reached the2003 National League Championship Series against theFlorida Marlins. As with the Red Sox, they had a three-run lead and were only five outs away from reaching the World Series, although this was in Game 6, when the Marlins scored eight runs in thatinning and won the game 8–3.^[60][61][62] The Marlins won Game 7, 9–6, to advance to the World Series,^[63] where they defeated the Yankees, four games to two.^[64] The Cubs did not reach the World Series until2016, winning in seven games over theCleveland Indians.

Believing his defense was the weak point of the team, general managerTheo Epstein traded shortstopNomar Garciaparra at the 2004 trade deadline in a four team trade that saw the Red Sox receive shortstopOrlando Cabrera from theMontreal Expos and first basemanDoug Mientkiewicz from theMinnesota Twins. It was a controversial trade at the time, but necessary as the Red Sox had enough offense to cover for Garciaparra's departure and needed better defense at shortstop, which Cabrera provided. Garciaparra finished his Red Sox career with a .323 average, 178 home runs, and 690 RBI over parts of nine seasons.

The following year, Boston and New York met again in theALCS, with Boston becoming the first team in major league history—as well as just the third team in American professional sports history—to come back to win a playoff series after being down three games to none;^[65] they then swept theSt. Louis Cardinals in the World Series to win their first championship since 1918 and thus end theCurse of the Bambino.^[66]

In the 2005–06 offseason, the rivalry between Boston and New York revived the Yankees' loss to the Marlins in the 2003 World Series when they tradedJosh Beckett, the pitcher who pitched a complete-game shutout against the Yankees in the deciding game of the Series, to the Red Sox.^[64][67]

The Yankees eventually hired postseason hero Boone as their manager in 2018.^[68] The two teams have met in the postseason three during his tenure (2018, 2021, 2025). In2018, the Red Sox beat the Yankees en route to becoming the first team to win two World Series exactly one century apart, a feat that Boone kept them from doing in 2003, as the Red Sox won theinaugural World Series. The Red Sox won the2021 match-up between the two rivals, while Boone and the Yankees avenged both of their losses to Boston in the2025 American League Wild Card Series.

Produced byHockey Hall of Fame playerMark Messier in 2024,Amazon Prime spotlighted the 2003 ALCS in their series documentary 'Game 7'.^[69]

• Trot Nixon—.333 average, three home runs, five RBI
• David Ortiz,Manny Ramírez,Jason Varitek,Todd Walker—two home runs each.
• Tim Wakefield—Won Game 1 and Game 4 for the Red Sox, and very likely would have been the ALCS MVP had Boston held on to win the series.
• Jorge Posada—.296 average, four doubles
• Mariano Rivera—eight innings, 1.12 ERA, two saves (Series MVP)
• Mike Timlin andAlan Embree (combined)—ten innings, four hits, no earned runs
• Mike Mussina and Rivera—six innings, six strikeouts, four hits, and zero earned runs combined in relief during Game 7.
• Jason Giambi—Before the eighth inning rally in Game 7, Giambi had provided the Yankees' only offense with two solo home runs off Pedro Martínez.
• Aaron Boone—Hit an 11th inning walk-off home run in Game 7.

• Shaughnessy, Dan (2005).Reversing the Curse. Boston: Houghton Mifflin Company.ISBN 0-618-51748-0.

• 2003 ALCS at Baseball-Reference

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