The National
Basketball Association’s seemingly endless playoff schedule starts today (April
15), made longer by the new play-in sked that began last Tuesday (4/11), but
one of the game’s dominant themes already is reverberating through the
land. It’s the “We Wuz Robbed” cry from
fans who think their teams have been or will be victimized by referee
unfairness.
It’s a
claim that follows all sports, probably out of the ingrown touch of paranoia we
all harbor, but none more so among our American Big Three than basketball. My
hometown Phoenix Suns have been especially irate of late, citing a 21-25
per-game free-throw-attempt deficit during the regular season as prima facie
proof of evil doings. If it’s occurred to them and their fans that, maybe,
the Suns just foul more than foes, they’ve kept it to themselves.
The hoops sport is singled out because its
refs have more to do with the outcome of its games than most others. The
on-court banging around that characterizes the NBA—and is celebrated by the
league’s boosters-- is so pervasive that fouls might be called on just about
every play. As it is, NBA refs call 48
personal fouls in an average game. That compares with the average of 12 penalty
mark-offs a game in the National Football League, a total that in itself stirs
anger.
The
notion that game officials or the league itself favors some teams at the
expense of others also is strongest in the NBA. The model favored team is, of course, the New
York Knicks, probably because of general hinterland bias against the
metropolis, but also because of the 1985 draft-lottery drawing that gave the
Knicks the right to acquire giant center Patrick Ewing, that year’s prize.
Anti-Knick vibes have waned in recent decades, probably because the perceived favoritism
hasn’t brought the poor guys a title since 1973. Now, I guess, the LA Lakers,
from the West Coast metropolis, are said to be the pets.
Anyone
who’s been close to sports knows that the whole idea of organized official bias
is ludicrous. I’ve known refs or umps professionally or personally (my nephew
David Trachtenberg calls high-school basketball and volleyball games in the
Denver area), and can say unreservedly that no other group matches them for pure-hearted
devotion to their sports. Big-league game officials today make good money—NBA
refs top out at $550,000 a year and MLB umps at $450,000—but just about all of
them started out officiating kids’ games at $50 a pop, and that rate or close
to it still prevails in the playgrounds. Without such heroes organized sports
in this country wouldn’t exist.
This is
not to say that there is no such thing as official bias. It exists, but perhaps
not in ways, or for reasons, some might expect. For these I refer to the book
“Scorecasting,” by Tobias J. Moskowitz, a professor of finance at Yale U., and
L. Jon Wertheimer, an editor at Sports Illustrated magazine. It took a
statistical look at some of sports’ popular verities and debunked more than a
few of them.
Published in 2011, the book is a
dozen years old and some things have changed in that span, but because it draws
on mountains of data that aren’t easily moved, its main conclusions remain
valid. One, for example, showed that the NFL practice of “icing” placekickers
by calling last-second timeouts doesn’t work— success rates with and without
them were almost identical. Another showed that NFL teams that “went for it” on
fourth down anywhere near the 50-year-line did better than ones that made the
conventional choice of punting. A third questioned the widespread practice of
removing from NBA games players with five (of the permitted six) fouls with
considerable game-time left. Those guys foul out so infrequently (about 20% of
the time) that it’s better to keep their production by letting them play.
The book’s most interesting
conclusions have to do with home-field advantage; that’s one of the enduring
truths of all team sports, with home edges of 55% to 60% across leagues since
time immemorial. I’ll spare you from reading, and myself from presenting, most
of the stats, but using clever measures it eliminated as causes such factors as
home-field familiarity, home comforts and visitors’ travel weariness. What it
found, regardless of nation, sport or decade, was official bias in favor of home
teams.
The difference was strongest in low-score
soccer, where European-league home teams win or tie about 60% of the time. Data
dating from the 1800s showed that soccer refs consistently give home teams
edges in extra time, red cards and penalty kicks, things that often are
decisive in one-goal outcomes. In baseball, millions of MLB data bits collected
electronically for more than 20 years show that ball-strike calls favor home
teams. In basketball the homers get the breaks on not only personal-foul calls
but also on ones involving ball-possession changes. The differences are small, usually
amounting to just a few percentages, but you can drown in a lake that averages
a foot deep.
The authors assert, convincingly,
that the reasons behind the discrepancies have nothing to do with conscious
bias. One is the all-sports dictum—real although unspoken—that the players
should decide the games; for that reason, they say, umps are especially hesitant
to make “ball four” or “strike three” calls on close pitches, and penalty
frequency in all sports declines late in close-fought contests and in playoffs.
Another is the tendency toward conformity found in all human groups, mirroring
people’s psychological desire to be agreeable to those around them. Thus, the home-field
edge grows with crowd size and the nearness of the crowds to the playing
fields.
For more (and there’s a lot more) you
gotta see the book. It’s not light reading, but it’s worth the effort for serious
fans. It’s available on Amazon for $17, plus delivery. And no, I’m not up for a slice.
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