At the World Under-18 Championship in Grand Forks, North Dakota, Woll had a 1.34 GAA and .947 save percentage in three games, and Oettinger had a 1.50 GAA and .934 save percentage in four games. They combined to allow a tournament-low 10 goals in seven games with a 1.57 GAA and .939 save percentage.
"The one difference between playing college hockey and playing internationally is it's a bigger stage," Woll said. "I represent Boston College but now I'll represent the United States, so there's that added pressure but I think the reward is a lot bigger."
Parsons, a second-round pick (No. 54) by the Flames in the 2016 NHL Draft, helped lead London to the Memorial Cup championship last season with a 2.15 GAA and .925 save percentage in 18 playoff games. He is 11-2-2 with a 2.46 GAA and .916 save percentage in 16 games this season.
"We're all competing for that No. 1 spot, and as a goalie that's what you want," Parsons said. "Whoever gets it, the other two will support that player. We're competing but also on the same team and the one goal in mind is to get that gold medal in the end."
Mayotte, who is making his debut on the U.S. national junior team coaching staff, broke down for NHL.com the positive attributes of each goaltender.
On Parsons: "He's not afraid to make the split save and reach for a few more pucks; he's able to make that second save but at the same time his rebound control is phenomenal. He's almost like Velcro; the puck hits him and it doesn't come back out or he puts it to the corner. If he doesn't control it, he has the athletic ability to recover."
On Woll: "He's more technical than [Parsons] but also has that athletic quickness and skating. He's very clean and very efficient, he gets to his spot and fills the net. He makes the save and moves on to the next one. He's a very efficient goalie."
On Oettinger: "The biggest of all three goalies (6-foot-4, 202 pounds). He's very good at keeping everything in front of him. You're not going to see him reach for many pucks, and he works inside his box and is good at it. With that size, he can really skate and can anticipate plays so he's usually always in the right position."