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Head-and-shoulders portrait of a man in a white baseball uniform with blue and orange piping, a white cap with an orange brim, holding a bat and looking directly at the camera.
Cbl62 at the English language Wikipedia
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IV · THE GAME · MAJOR LEAGUE BASEBALL

Reggie Jackson

Outfielder · 9 June 1967 · Kansas City/Oakland Athletics · Baltimore Orioles · New York Yankees · California Angels · 18 May 1946, Abington, Pennsylvania

A career total of 563 home runs sounds like dominance, but the highest single-season mark was forty-seven. The rest is persistence and arithmetic.

At a glance

Career
2,820 games · 2,584 hits · 563 home runs · 1,702 runs batted in · .262 average
Debut
9 June 1967, aged 21, for the Kansas City Athletics
Last game
4 October 1987, for the Oakland Athletics
Seasons played
21 seasons across 21 years

Look closer

  1. The debut season was thirty-five games of adjustment

    In 1967 Jackson appeared in thirty-five games, made twenty-one hits in one hundred and eighteen at-bats, and struck out forty-six times — more than twice as often as he reached base on a walk. The batting average was .178, the on-base percentage .269. One home run, six runs batted in. It is the profile of a player learning the level, not dominating it.

  2. 1969 stands alone in the home-run column

    The forty-seven home runs Jackson hit in 1969 are the peak of the entire table. He reached forty-one once more, in 1980, and thirty-nine in 1982, but no other season cleared thirty-seven. The total of 563 was not built from a cluster of enormous years — it was built from twenty seasons in which the count ranged from one to forty-seven, with most of them landing in the twenties and thirties.

  3. The final five seasons show the decline in plain numbers

    From 1983 to 1987 the batting averages were .194, .223, .252, .241, and .220. The strikeout totals in those years — 140, 141, 138, 115, 97 — stayed high even as the at-bats fell. The on-base percentages dropped below .300 twice. These are not the figures of a player retiring at his peak; they are the figures of someone playing through the end of what the body could give.

The story

The debut game itself is not recorded here, so what remains is the debut season: thirty-five games for the Kansas City Athletics in 1967, twenty-one hits in one hundred and eighteen at-bats, and a batting average of .178. Jackson struck out forty-six times and walked ten. He hit one home run and drove in six runs. It was not a confident start.

The following year the club moved to Oakland and Jackson played a full season: one hundred and fifty-four games, twenty-nine home runs, a .250 average. The strikeouts were high — one hundred and seventy-one — but the power was visible. In 1969 the numbers jumped: forty-seven home runs, one hundred and eighteen runs batted in, a .275 average and an on-base percentage of .410. It was the highest home-run total of the career, and it arrived in the second full season.

After 1969 Jackson never hit forty-seven again. He cleared forty once, in 1980, and thirty-nine in 1982, but most seasons landed in the twenties and low thirties. The total of 563 was accumulated across twenty-one seasons, not concentrated in a handful of peak years. Jackson played in Oakland from 1968 through 1975, moved to Baltimore for 1976, then to New York from 1977 through 1981, and finished with California from 1982 through 1986 before returning to Oakland for 1987. The final season brought one hundred and fifteen games, a .220 average, and fifteen home runs.

The strikeout totals were high throughout. Jackson struck out more than one hundred times in nineteen of the twenty-one seasons, and the career total of 2,597 is nearly as large as the hit total of 2,584. The batting average was .262, the on-base percentage .356, the slugging percentage .490. These are the figures of a player who hit for power, drew walks, and struck out frequently — a profile that was less common in the 1960s than it became later.

The decline is visible in the final five seasons. From 1983 to 1987 the batting averages were .194, .223, .252, .241, and .220. The strikeouts remained high even as the at-bats fell, and the on-base percentages dropped below .300 twice. Jackson played through the decline rather than stopping at the peak, and the last line in the table — seventy-four hits, fifteen home runs, a .220 average — is the end of what twenty-one years of major-league play looks like when it is allowed to run its course.

Why it mattered then

Jackson's career spanned a period in which the designated hitter rule was adopted in 1973, allowing players who hit for power but did not field to extend their careers. Jackson played outfield for most of his time but benefited from the flexibility the rule created, particularly in his later years. The strikeout totals, which would have been seen as a liability in earlier decades, were increasingly accepted as the trade-off for power hitting — a shift in how offensive value was understood. The movement between clubs was also characteristic of the era. Jackson played for four teams across twenty-one seasons, a pattern that became more common as free agency reshaped the league's economics after 1976. The years in New York, from 1977 to 1981, coincided with a period of high visibility for the Yankees, and the nickname "Mr. October" — which is recorded in the verified facts but not explained by them — suggests that postseason performance was part of how Jackson was understood by contemporary audiences, though the regular-season figures are what the table records.

Why it matters now

The career total of 563 home runs and the season-by-season table together illustrate a model of accumulation that is less celebrated than the single dominant season but just as durable. Jackson's highest total was forty-seven, and the rest of the 563 arrived in smaller increments across two decades. This is a different shape of achievement from the concentrated peak, and it depends on health, opportunity, and the willingness to play through the decline. The strikeout total of 2,597 — nearly equal to the hit total — also marks a shift in how offensive production is measured. In Jackson's era, striking out frequently was still seen as a flaw; in the decades since, the trade-off between power and contact has been recalibrated, and the profile Jackson embodied has become more common. The figures record not just what one player did but how the game's understanding of value was changing as he did it.

The surprising detail

The two numbers that sit oddest together are 563 home runs and forty-seven — the most Jackson hit in any single season. That peak arrived in 1969, his second full year, and he never reached it again. The career total was not built from a cluster of fifty-homer seasons but from twenty-one years in which the count ranged from one to forty-seven, with most landing in the twenties and thirties. The achievement is durability as much as it is power.

What is disputed

The box score of the debut game on 9 June 1967 is not available here, so no details of that game — opponent, venue, score, or individual performance — are recorded in this lesson. The season totals and career figures come from the MLB Stats API, which compiles records retrospectively for earlier decades; the numbers are those the league publishes today.

Remember this

563 home runs, and never more than forty-seven in a season: the total is time as much as it is talent.

Test yourself

Jackson's strikeout total for his career is 2,597, and his hit total is 2,584. What does that near-equality tell you about the shape of his offensive game, and how would it have been received in earlier decades?

Go deeper

Image: Cbl62 at the English language Wikipedia. Licence: CC BY 3.0. Source.

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