A long delay for review after Ohio State scored an extra-attacker goal to tie their game vs St Thomas. While the replays shown on the BTN stream concentrated on the action in front of the net as the puck was going in, it seemed obvious that the challenge had to do with the play being offsides, because it was the linesmen who were "taking the lead" at the review screen.
So I downloaded the game, and went through what the challenge was, frame-by-frame (as best as a BTN stream from Columbus allows, anyway),
The puck gets knocked out of the OSU offensive zone at about 50 seconds to play, and OSU skates for a few seconds for everyone to get out of the zone. Then at 44 seconds, the puck gets passed by Peschel past Zanon, who is a yard or so outside the blue line, and the puck goes into the forward zone where a Tommie skater knocks it right back at Zanon. All within a second or so, the puck hits Zanon and bounces back towards the Tommie and the forward zone. By the time the puck hits Zanon, Joy Dunne has gotten her skates onto the width of the blue line.
So for it to NOT be offside, Zanon has to have also gained the blue line such that when the puck bounced off her, she was 'holding the zone' And while it is all very close (and may depend on which edge of the width of the "blue line" is "the line" at that instant). I gotta say it looks to me that Zanon had not gained the line, and the play was offside.
The Tommies challenged, even though they had used their timeout beforehand - so they must have been pretty confident of the challenge - putting them down a skater in the overtime, and Ohio State scored fairly quickly.
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Boy, doesn't Brausen have them playing some good hockey!