Sports nomenclature

Novak Djokovic lost in the finals of the U.S. Open today, ending his attempt to complete the first Grand Slam by a male player since Rod Laver in 1969 and by any player since Steffi Graf in 1988.

Much of the writing about this will describe Djokovic as missing the "Calendar-Year Grand Slam," a qualifier distinguishing what became known as a "Serena Slam" in which a player holds the four titles at the same time measured from some arbitrary point in time. For example, a player wins Wimbledon and the U.S. Open in Year One and the Australian and French Opens in Year Two; measured during the month between French and Wimbledon in Year Two, that player has won a "Slam" over the last 12 months.

This is stupid. Had Djokovic won, he would have captured a Grand Slam, unmodified and unqualified. The Serena Slam is not a thing and we should not mention it. A Serena Slam is equivalent to saying a baseball player who hit 37 home runs in the last 81 games of Year One and 37 home runs in the first 81 games of Year Two holds the record by hitting 74 homers in 162 games (the length of a season). Or a hockey player who scored 46 goals in the final 41 games of Year One and 47 goals in the first 41 games of Year Two holds the record by scoring 93 goals in in 82 games (the length of a season). Season records are measured in a season, not the number of games that comprise a season, measured from arbitrary points over multiple seasons.

Tennis has a season that follows a calendar year and contains four Grand Slam tournaments in order. It begins in January leading to the first Slam tournament in Australia in late January and ends in November with round-robin tournaments featuring the eight best men (played in Italy) and women (played in China), two months after the fourth and final Slam event in New York. If winning the four tournaments is a thing, it must be within that "season," meaning a calendar year. Anything else looks like an attempt to create a special achievement when the real achievement proved too rare.