High-leverage innings on consecutive days can begin with eight outs at Wrigley Field. On October 30, 2016, Aroldis Chapman stood on the mound with the Chicago Cubs facing elimination. The crowd roared behind him, and Cleveland’s hitters waited for another fastball that might touch 102 mph. Chicago needed Game 5 of the World Series. Chapman needed to survive longer than his usual assignment.
He threw 42 pitches across 2 2/3 innings, securing the eight-out save that sent the series back to Cleveland. Fans celebrated a season rescued. Manager Joe Maddon had found his answer for the night.
Two days later, the Cubs needed Chapman again. Then came Game 7.
By the end of the deciding game, Chapman had thrown 97 pitches across three appearances in four days. His fastball still carried extraordinary velocity, but its usual margin for error had narrowed.
The moment exposed a problem every postseason contender eventually confronts. How much can a manager demand from a pitcher’s arm before yesterday’s hero becomes tomorrow’s vulnerability?
Aroldis Chapman and the Price of Keeping a Season Alive
Chapman’s Game 5 performance became an essential part of Chicago’s championship story. He entered with the tying run at second base in the seventh inning and protected a one-run lead. His fastball overwhelmed Cleveland hitters, and four strikeouts helped preserve a 3-2 victory.
Chapman threw 42 pitches, including fastballs that reached 102 mph. For a closer accustomed to shorter assignments, the outing demanded unusual endurance.
The Cubs had little choice in Game 5. Lose, and their season ended.
Game 6 presented a different calculation.
Chicago led Cleveland 7-2 when Maddon summoned Chapman in the seventh inning. The closer recorded four outs and threw another 20 pitches, even as the Cubs expanded their advantage. They eventually won 9-3.
That decision would follow Maddon into Game 7.
On November 2, Chapman entered the eighth inning with Chicago leading 6-3. Brandon Guyer doubled home a run before Davis drove a 98.2-mph fastball over the left-field wall. Progressive Field erupted. A three-run advantage had disappeared.
Chapman’s reduced velocity and several hanging sliders became impossible to ignore during the final innings. One fastball to Carlos Santana registered 96.5 mph, well below his customary triple-digit heat.
The contrast was striking. Chapman still possessed a fastball most pitchers could only dream of throwing, but his familiar weapon no longer offered quite the same protection.
What the radar gun could not explain
After Chicago won the championship, Chapman publicly questioned his Game 6 workload. He believed the additional outing had affected him during the deciding game.
His assessment deserves attention, though it does not establish that fatigue caused Davis’s home run. A pitcher can miss his location for several reasons, and Davis still had to square up a 98-mph fastball.
The larger lesson concerns postseason pitching fatigue and the difference between throwing hard and throwing effectively.
A closer might retain most of his velocity while struggling to repeat his release point. His slider could back up over the plate instead of breaking away from a hitter. A fastball intended for the outside corner might drift toward the barrel.
In October, those misses can become season-changing swings.
Chapman survived his workload and earned a championship ring. One year later, another National League contender would push its trusted reliever even further.
Brandon Morrow and the Danger of Always Saying Yes
The 2017 Dodgers relied on Brandon Morrow as one of their most trusted late-inning options. His fastball regularly reached the upper 90s, and his command helped turn him into a critical piece of Los Angeles’s postseason bullpen. Then the World Series arrived, and the demands on his arm grew with every game.
Morrow appeared in all seven games against the Houston Astros, tying the record Darold Knowles established with Oakland in 1973. He also pitched in 14 of the Dodgers’ 15 postseason games. The workload alone was extraordinary, but its concentration made the situation even more dangerous.
Morrow threw 13 pitches in Game 3 on October 27. The next evening, he delivered four outs on 14 more pitches. When Game 5 arrived on October 29, he was preparing to pitch for the third consecutive night, something he had never done during his major league career.
Dodgers manager Dave Roberts understood the danger. Before Game 5, he acknowledged that Morrow carried more fatigue than other relievers and expressed a preference to avoid using him. The problem was that Houston kept forcing Los Angeles into uncomfortable pitching decisions, and Roberts needed dependable outs from a bullpen already working overtime.
Six pitches that changed the conversation
Game 5 became a wild, exhausting contest at Minute Maid Park. Clayton Kershaw couldn’t escape the fifth inning, and the Dodgers repeatedly turned to their bullpen as both offenses traded blows. By the seventh, Los Angeles led 8-7, and Roberts called for Morrow despite his plans to rest him.
The decision unraveled almost immediately. George Springer homered on Morrow’s first pitch, Alex Bregman followed with a single, and Jose Altuve doubled. Carlos Correa then launched another home run, sending the crowd into a frenzy. Morrow departed after six pitches, four runs and no outs recorded, leaving the Dodgers to absorb another brutal momentum swing. Houston eventually won 13-12 in 10 innings.
The outing did not prove that three consecutive appearances had damaged Morrow’s shoulder. Six pitches represent a tiny sample, and even fully rested relievers experience catastrophic innings. Still, the sequence exposed the danger of treating availability as evidence of readiness.
A fierce competitor will demand the baseball, especially when a World Series game hangs in the balance. That willingness can become a problem when the manager needs to make a different decision.
Morrow’s experience also revealed how postseason urgency changes normal standards. During the regular season, teams can spread workloads across a lengthy schedule. In October, a single defeat can eliminate the entire roster. Managers must spend their best pitchers to survive tonight, without knowing what they will need tomorrow.
That gamble becomes especially dangerous when the arm has not finished recovering from yesterday.
What Actually Happens Inside a Fatigued Pitcher’s Shoulder
The physical toll of high-leverage innings extends well beyond ordinary muscle soreness.
Every pitch demands rapid shoulder rotation, forceful trunk movement and precise coordination from the legs through the throwing hand. After release, the shoulder’s muscles must help decelerate the arm.
Repeat that movement dozens of times, and the body begins responding.
A 2022 study in the American Journal of Sports Medicine, led by Nicholas S. Mirabito of Temple University, captured how stubborn that recovery process can be. The research team, which included scientists from Thomas Jefferson University, tracked 10 collegiate club pitchers after a simulated game.
Their findings revealed a troubling gap between finishing an outing and regaining normal shoulder function.
Shoulder internal-rotation range of motion did not return to baseline until four days after pitching. External-rotation strength recovered on the third day. Researchers also found changes in the infraspinatus, a muscle that helps stabilize the shoulder.
The study involved collegiate club pitchers rather than major league closers. Its small sample could not establish an exact recovery schedule for professionals.
Still, the results exposed a problem every bullpen coach recognizes. A pitcher might feel ready to compete long before his shoulder returns to its normal condition.
When fatigue steals inches instead of miles per hour
A bullpen coach can watch a radar gun and see 98 mph. That number alone cannot reveal everything happening inside the delivery.
Modern teams have much better tools. Statcast pitching data tracks velocity, spin rate, movement and release characteristics. Those measurements help coaches identify mechanical changes that might otherwise escape the eye.
A fatigued pitcher could maintain his fastball speed while releasing the ball slightly earlier. His slider might lose a couple of inches of horizontal movement. An inconsistent arm slot could turn a carefully planned chase pitch into a hittable strike.
Those changes do not automatically signal fatigue. Pitch design, grip adjustments and ordinary game-to-game variation can produce similar readings.
The real concern emerges when performance changes accompany an unusually heavy workload and incomplete recovery.
Consider a closer trying to bury a slider below the strike zone. If fatigue interferes with his ability to finish the pitch, the baseball may stay at thigh height. The catcher reaches down, but the hitter gets a mistake over the plate.
A mechanical error measured in inches can travel 400 feet.
The invisible workload before the first pitch
Official pitch counts also overlook an important part of relief work.
A starter generally follows a scheduled warm-up routine. Relievers operate with far less certainty. One pitcher might loosen in the fifth inning, sit down, warm up again in the seventh and finally enter during the eighth.
Another could prepare several times without appearing at all.
Those bullpen throws still require physical effort, even though they never enter the official game log. Repeated warm-ups complicate the task of evaluating high-leverage innings on short rest.
The mental demands add another burden, although they differ from measurable muscular fatigue. With the tying run at third, a pitcher must still execute his delivery while processing scouting information, pitch selection and the possibility of one devastating mistake.
Adrenaline can help him compete through discomfort. It cannot guarantee complete physical recovery.
This distinction matters most when the postseason schedule offers almost no room to recover.
Nathan Eovaldi and the 18-Inning World Series Marathon of 2018
On October 26, 2018, the Boston Red Sox and Los Angeles Dodgers played an 18-inning World Series game that stretched deep into the California night.
By the time Max Muncy launched a walk-off home run in the eighteenth inning, the contest had lasted seven hours and 20 minutes. Los Angeles won 3-2, but the box score revealed a remarkable act of pitching endurance.
Nathan Eovaldi threw 97 pitches across six-plus innings of relief, allowing three hits and one earned run while striking out five. His outing set a World Series record for pitches thrown by a reliever.
The performance carried an added complication. Eovaldi had already appeared in Games 1 and 2, throwing 16 pitches in the opener and another 13 the following night.
He entered Game 3 having worked twice in the previous three days. The Red Sox originally planned to start him in Game 4.
Instead, manager Alex Cora watched his intended starter become the last line of defense in an exhausting extra-inning battle.
Six innings of relief that consumed tomorrow’s starter
Eovaldi entered in the bottom of the twelfth inning with the game tied 1-1. His fastball still reached triple digits, and his cutter gave Los Angeles hitters little room to breathe.
Boston briefly seized a 2-1 lead in the thirteenth. An Ian Kinsler throwing error helped the Dodgers tie the game, forcing Eovaldi to keep pitching.
The innings accumulated. So did the pitches.
Eovaldi retired the Dodgers through the seventeenth, leaving Boston one swing away from taking a commanding 3-0 series lead. By then, he had already thrown more pitches than most relievers would use across several appearances.
Muncy finally ended the game in the eighteenth, connecting on a cutter that traveled into the left-center-field seats.
The loss went beside Eovaldi’s name. His teammates understood what the pitching line could not capture.
Starter Rick Porcello became emotional afterward, praising the determination Eovaldi had shown through an extraordinary workload. The Boston clubhouse treated him like a hero despite the defeat.
His performance also created an immediate problem for Cora.
The Red Sox had another World Series game to play the following evening. Their scheduled Game 4 starter had just delivered an outing resembling a full start, after already pitching twice earlier in the series.
Eovaldi needed rest. Boston needed somebody else.
How One Exhausting Game Rewrote Boston’s Pitching Plans
Cora turned to Eduardo Rodriguez for Game 4 on October 27. The left-hander had worked exclusively out of the bullpen during the postseason and had not started a game since September.
Rodriguez had also pitched in Game 3, retiring one batter on six pitches. That made him the first pitcher since Firpo Marberry in 1924 to start a World Series game on zero days of rest.
The comparison with Eovaldi was revealing.
Rodriguez had thrown only six pitches the previous night. Eovaldi had thrown 97. Both technically entered Game 4 with no full day of recovery, but their bodies had faced radically different demands.
Cora could adjust Rodriguez’s role because his previous workload remained manageable. Eovaldi’s marathon removed him from consideration entirely.
Rodriguez delivered 5 2/3 innings and 93 pitches in Game 4. Los Angeles scored four runs against him, including three on Yasiel Puig’s sixth-inning home run, but Boston rallied for a 9-6 victory.
The Red Sox eventually won the World Series in five games.
Their championship did not erase the strain of Game 3. It demonstrated how quickly one extraordinary appearance can force a manager to rebuild the following night’s plan.
Eovaldi had provided six-plus innings when his teammates desperately needed him. The price was his availability for the next game.
High-leverage innings on consecutive days can create exactly that predicament. Teams celebrate the pitcher who empties the tank, then scramble to replace what he gave them.
For a different perspective on the gamble, baseball history offers one of its most remarkable examples from 2001.
Randy Johnson and the Exception That Cannot Become the Rule
Randy Johnson had already done more than enough when Arizona faced the New York Yankees in Game 7 of the 2001 World Series.
The previous evening, Johnson started Game 6 and threw 104 pitches across seven innings, holding New York to two runs. Arizona won 15-2, forcing a deciding game at Bank One Ballpark.
Manager Bob Brenly removed Johnson after seven innings partly because he hoped his ace might remain available for relief the following night.
That possibility seemed extraordinary.
Johnson had just completed a demanding start in the biggest series of his career. Yet when Game 7 arrived, he appeared in the dugout wearing his spikes, ready to pitch again.
Arizona trailed 2-1 in the eighth inning after Alfonso Soriano homered against Curt Schilling. The Yankees were closing in on their fourth consecutive championship.
Brenly needed outs. Johnson answered.
Four outs on almost no recovery
Johnson entered with a runner on first and two outs in the eighth. He retired Chuck Knoblauch, then returned for the ninth and set down the Yankees in order.
Four outs, no baserunners and a championship still within reach.
Arizona rallied against Mariano Rivera in the bottom of the ninth. Tony Womack tied the game with a double, and Luis Gonzalez delivered the winning single.
Johnson earned the victory in relief after winning Game 6 as a starter. He shared World Series MVP honors with Schilling.
The performance remains one of baseball’s greatest demonstrations of pitching endurance.
But Johnson’s extraordinary recovery does not establish a safe workload for every pitcher. His mechanics, conditioning and personal response to fatigue were his own.
Some pitchers can maintain effectiveness after heavy workloads. Others lose command, movement or strength long before their velocity disappears.
Johnson succeeded in a situation where many managers would never risk using a pitcher.
Morrow’s collapse in 2017 and Eovaldi’s marathon in 2018 illustrate different outcomes. Those performances reinforce why bullpen management requires individual judgment rather than one universal pitch-count rule.
The Next October Will Demand the Same Impossible Choice
Another postseason will bring another exhausted bullpen. Somewhere, a manager will study a lineup card while the crowd grows louder and a trusted closer starts stretching beyond the outfield fence.
The decision will look simple from the stands. Bring in the best arm. Get the out. Worry about tomorrow later.
Inside the dugout, the calculation runs deeper.
A closer whose slider has lost two inches of bite might offer less value than a rested middle reliever with sharp command. A pitcher who has warmed up three times could carry a greater workload than his official pitch count suggests. Even a fastball that maintains its velocity can become dangerous when the release point drifts.
The manager must weigh those details against the hitter, the score and the possibility that tomorrow never arrives.
High-leverage innings on consecutive days demand a kind of judgment that no single statistic can provide. Spin rates, pitch movement and recovery assessments improve the information available, but none can eliminate uncertainty.
The history offers different warnings.
Chapman delivered the outs that kept the Cubs alive, then struggled as Cleveland nearly stole their championship. Morrow answered the Dodgers’ calls until his three-night stretch ended in a six-pitch disaster. Eovaldi emptied his arm in an 18-inning marathon, while Johnson returned the day after throwing 104 pitches to help Arizona win a title.
None of those performances establishes a universal limit. Together, they show why postseason pitching fatigue cannot be reduced to toughness or a pitch-count threshold.
Baseball will always celebrate the reliever who refuses to surrender the ball. That instinct helps create October’s greatest moments.
But the sport also needs managers willing to protect an arm when ambition outruns recovery.
The next time a bullpen phone rings with the season hanging in the balance, the most consequential decision may not be whom to summon.
It may be knowing when not to call.
READ MORE: Running on Empty: How October Baseball Pushes Relievers Past Their Limits
FAQs
Q1. Can MLB relief pitchers pitch on consecutive days?
Yes. Relievers can pitch on back-to-back days, but managers weigh recent workloads, recovery and fatigue before deciding whether to use them again.
Q2. How long does a pitcher’s shoulder take to recover?
Recovery varies. A 2022 study of college pitchers found that some shoulder measurements took three to four days to return to normal.
Q3. How many pitches did Aroldis Chapman throw in the 2016 World Series final three games?Chapman threw 97 pitches across Games 5, 6 and 7, helping Chicago win its first World Series championship in 108 years.
Q4. Why did Nathan Eovaldi throw 97 pitches in relief during the 2018 World Series?
Boston needed Eovaldi during an 18-inning marathon against Los Angeles. He delivered six-plus relief innings before Max Muncy’s walk-off homer ended Game 3.
Q5. Did Randy Johnson pitch in consecutive World Series games in 2001?
Yes. Johnson threw 104 pitches in Game 6, then returned the next night to record four outs and help Arizona win Game 7.
