KANSAS CITY, Mo. — When Villanova and Duke were upset on Sunday, the widespread assumption was that there would be a fall in ticket prices on the resale market for the NCAA Tournament East Regional at Madison Square Garden.

Not so much, as it turns out, at least for Friday night’s semifinals. Asking prices have hung tough, presumably due at least in part to strong interest among Wisconsin fans.

According to TicketIQ.com, which tracks a number of secondary market sites, the least expensive ticket for Friday night’s doubleheader as of Friday morning was $266 – its highest level of the week.

The overall average asking price was $696, but the average price of sales actually completed was only $373, indicating there could be further price drops as the games approach this afternoon.

With the matchup for Sunday’s regional final not yet set, prices have fallen significantly, with the lowest on the market as of Friday morning at $89, down 45 percent since early last week.

In 2014, the last time a regional was held at the Garden, the least expensive Sweet 16 ticket was $253. There was heavy demand for tickets that year because of Connecticut’s participation.

Meanwhile, in Kansas City, after nearby Kansas routed Purdue on Thursday night, the least expensive ticket for Saturday night’s regional final against Oregon skyrocketed from $140 to $244 as of Friday morning.

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The average asking price rose from $481 to $652. Even more impressive, the average completed sales price for Saturday’s night’s game has reached $456 per ticket.