South Park - Season 23, Episode 7: Board Girls

https://www.youtube.com/watch?v=URz-RYEOaig

Vice-principal Strong Woman and "Heather Swanson" compete in a STRONGWOMAN Competition that includes a boxing match. Heavy bag work and two matches.

Food Wars! The Fourth Plate - Episode 5: You're Through

https://www.crunchyroll.com/food-wars-shokugeki-no-soma/episode-5-youre-through-789633


Another fantasy sequence. This time featuring Megumi Tadokoro fighting Momo Akanegakubo.

Food Wars! The Fourth Plate - Episode 4: Aim for Victory!

https://www.crunchyroll.com/food-wars-shokugeki-no-soma/episode-4-aim-for-victory-789632


Megumi Tadokoro wears apple-shaped boxing gloves in a fantasy sequence.

FF (2013) - Vol. 2 #12

Dragon Man has Miss Thing and She-Hulk test out new modifications he made to the Thing exo-suit in a boxing match. Both get one punch in.

FF (2013) - Vol. 2 #1

The Thing accompanies She-Hulk at the gym.

DC Super Hero Girls - Season 1, Episode 24: #SoulSisters Part 1

Diana Prince tries to do some sparring with Tatsu Yamashiro, but Tatsu's mind is elsewhere.

Time Bokan 24 - Episode 8: Seton Animal Chronicles Was Actually Donut Chronicles!

https://www.crunchyroll.com/time-bokan-24/episode-8-seton-animal-chronicles-was-actually-donut-chronicles-720941

Calen shows off her policewoman outfit with some boxing moves.

Godannar - Episode 2: Burning Virgin Road

Anna Aoi works a bag while training to become a mecha pilot. Quick scene.

Boneyard #7 (2002)

Abbey the vampire fights Ralph the werewolf in a charity boxing match. Some good back and forth action.

Dumbbell Nan Kilo Moteru? - Episode 12: How Heavy Are the Barbells You Lift?

Hibiki shows off her punching strength in a bikini contest.

OK K.O.! Let's Be Heroes - Season 3, Episode 18: Let's Fight to the End

The final cameo of Punching Judy in a plaza wide tournament.