Kate Middleton runs in sneakers, shows off her punch at fitness event: Watch!

Kate Middleton is working on her fitness! The 38-year-old Duchess of Cambridge had some fun on Wednesday at the London Stadium, where she attended a SportsAid event as the organization's royal patron. 

The mother of three celebrated parents and guardians' roles in their child's sports lives and got in on the fun herself. 

Working with sprinters, Kate got up on the starting blocks and showed off her racing skills in a fitted green top, wide-legged green pants and white sneakers. 

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Kate Middleton at SportsAid
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Kate Middleton at SportsAid
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge is seen during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge, leaves after attending a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, attends a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, (C) attends a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge watches a Judo display during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge, (C) prepares to race against sprinter Emmanuel Oyinbo-Coker (L) and heptathlete Jessica Ennis-Hill (R) on the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge leaves following a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge (L), jokes with British athlete Jessica Ennis-Hill (R) during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge (C), is shown Taekwondo moves by Britain's Lutalo Muhammad (L) during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge (C), is shown Taekwondo moves by Britain's Lutalo Muhammad (L) during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, gets instruction on how to use the starting blocks on a running track during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
Britain's Catherine, Duchess of Cambridge, tries out the running track with starting blocks during a SportsAid event at the London Stadium in east London on February 26, 2020. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge (R) with heptathlete Jessica Ennis-Hill (L) during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge (L) with heptathlete Jessica Ennis-Hill (R) during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge meets athletes during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge (C) poses for a photograph with young athletes and staff during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge (L) with heptathlete Jessica Ennis-Hill (C) during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 26: Catherine, Duchess of Cambridge is shown a pole vaulting pole during a SportsAid Stars event at the London Stadium in Stratford on February 26, 2020 in London, England. (Photo by Yui Mok - WPA Pool/Getty Images)
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She also threw a few punches during a demonstration with an instructor. 

Later in the event, Kate spoke to the crowd, congratulating them for the parts they've played in their children's success. 

"For all of you here, you go, and have gone, above and beyond the call of duty; you’ve committed your time and devotion to nurturing your children’s exceptional talents," she said. "And as a parent, I have a huge admiration for you and I know just how complex and time-consuming your role is."

Kate's been keeping very busy lately. On Tuesday night, she and her husband, Prince William, attended a charity performance of Dear Evan Hansen in London's West End. The couple are also set to take a three-day tour of Ireland in early March, coinciding with Prince Harry and Meghan Markle's return to the U.K. 

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Kate and William at Dear Evan Hansen
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Kate and William at Dear Evan Hansen
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge, accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge, accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge, accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge, accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge, accompanied by Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 25: The Duke and Duchess Of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Ian Vogler - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Ian Vogler - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Ian Vogler - WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - FEBRUARY 25: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at the Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Ian Vogler - WPA Pool/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge leaves after a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - FEBRUARY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - FEBRUARY 25: Catherine, Duchess of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre on February 25, 2020 in London, England. (Photo by Samir Hussein/WireImage)
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