Why Kate Middleton Is Going Home with 'Bragging Rights' Over Prince William After Sports Day (Exclusive)

The Prince and Princess of Wales played goalball, wearing black-out googles for the visually impaired game

Kate Middleton and Prince William showed off their competitive sides once again — and this time, Kate came out on top!

The Prince and Princess of Wales, both 41, took part in a mental fitness workshop organized by the charity SportsAid on Thursday, where they tried their hand at sports such as netball and goalball.

Goalball is a Paralympic sport for the visually impaired where all the players wear eyeshades or blindfolds. Tactile lines are used for players to feel where they are and the ball has an internal bell allowing the players to hear where it is.

Both Prince William and Princess Kate sported googles to participate in a penalty shout-out.

Tim Lawler, the chief executive of SportsAid, tells PEOPLE exclusively, "The prince shot and the goalie saved it, but the princess took a shot and she scored, so bragging rights to the princess!"

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Lawler adds, "That was a sport they knew very little about and they are pretty informed, so that was a wonderful insight for them. Taking sight away, that creates challenges and pressures — how do you deal with that? How do you lean on your other senses? What imagery can you use in order to achieve your objective?"

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The couple also played netball, practicing their focus with various external pressures such as performing with crowd noise. And again, Kate's team walked away with the victory.

Champion netball player Ama Agbeze, who was on Kate’s team at the event, tells PEOPLE, "We won both times! I think they are really competitive so they both want to be the best and win, a little healthy competition is a good thing."

Lawler agrees that Kate and William are "naturally competitive."

"They certainly didn’t want to leave without trying everything, particularly in the practical element," he continues. "It was lots of fun! They seem to have really enjoyed it, and it stimulated a few thoughts. They certainly seemed to enjoy it, and we thought they were terrific guests."

The day of sports isn't the first time that Prince William and Princess Kate have shown off their competitive sides. The couple never shies away from a face-off, whether they're making cocktails, sailing in a charity race or playing ping-pong.

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The couple recently joked about their competitive nature during an appearance on The Good, The Bad & The Rugby podcast (which is co-hosted by Mike Tindall, who is married to William's cousin Zara).

"I'm not going to say you're uber competitive," Mike said about Kate before pausing to give a nod indicating that she really was.

Princess Kate replied coyly, "I'm not competitive at all."

"I've seen her play beer pong!" Mike said.

When it comes to table tennis, Kate said on the podcast that she and her husband have never "actually managed to finish a game."

"It becomes a mental challenge between the two of us," she said.

William added that it comes down to “who can out-mental each other.”

Kate has been a patron of SportsAid since 2013, and Lawler praised the couple for being willing to step out of their comfort zones during the event.

"It was really good fun, and I often find with these things — unendingly to the prince and princess' credit — that they’re willing to try some things that are maybe at the edge of what one would consider normal for an engagement or a public event such as this," he says.

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