CHARLEMONT — Berkshire East Mountain Resort held its annual Cardboard Classic sled race on Sunday, inviting participants to celebrate the end of winter with a race down the mountain.

“It’s always really fun and it’s a beautiful day,” said Nathan Marr, Berkshire East’s marketing director. “Typically this is one of the last events we do in the winter.”

Marr said the Cardboard Classic has been held annually for more than 20 years. It represents the penultimate event of ski season this year, with the March 29 Berkshire Highlands Pentathlon — involving running, biking, paddling and skiing — the only event left.

There were 44 sleds entered in this year’s Cardboard Classic, Marr said. Between riders and friends and family members who came to watch, Sunday’s event attracted approximately 250 people.

Sleds came in all shapes and sizes. Designs included cars, tractors, dragons, a ski patrol snowmobile and a barn, with the sled’s riders dressed as farm animals. The only rules for the sleds were that they must be made of cardboard and tape, have “Berkshire East” and “2025” clearly written on them, and riders must wear helmets.

“We had three boxes and we were trying to figure out what to do with them, and when we put them together it looked like a train,” said Juniper Tortino of Charlemont, who built “The Party Express” sled with her sister Lulu Tortino and friend Reese Schaefer.

“We originally wanted to make a unicorn with the party hats, but we ended up with a party train,” added Reese, who lives in Hawley.

Awards were given out for the fastest sled, slowest sled, best design, best costume and best Berkshire East-themed sled.

Third place for best design went to William LaClair of Charlemont for his sled, “Optimus Prime.” LaClair said he “loves Transformers” and has hundreds of Transformer toy cars, so when it was time to build a sled for the race, it was easy to pick a theme.

Receiving first place for best design was Thatcher Sirota of Northampton, for his sled “TNT.” Thatcher’s father, Nate Sirota, said it took the two of them about four hours and four rolls of duct tape to create their dynamite sled.

Reach Madison Schofield at 413-930-4579 or mschofield@recorder.com.