NFL - Wong Teasers

Wong Teasers are teasers when a bettor passes through the "key numbers" of 3 and 7 in the NFL. Normal 6-point teasers would require favorites of -7.5 to -8.5 and underdogs of +1.5 to +2.5. Below is the cover percentage of a single leg of a Wong Teaser covering. (At -110, 72.34% of legs have to cover to have +EV.)

	6-pt	6.5-pt	7-pt
1990-1999[1]	76.00%	77.00%	76.00%
2000-2008[1]	70.60%	72.44%	73.28%
2000-2010[2]	72.54%	—	—

Sources:
[1] Wong, Stanford (2011). Sharps Sports Betting. Las Vegas, NV: Pi Yee Press. pp. 258-262. ISBN: 0-935926-24-0.
[2] "NFL Teasers: Wong Teasers." WizardOfOdds.com. October 12, 2013. Retrieved October 13, 2013