Largest jack o'lantern by circumference
Travis Gienger, Mike Rudolph
614.7 centimetre(s)
United States (Anoka)

The largest jack o'lantern had a pre-carved stem-to-blossom circumference of 242 inches (614.7 centimetres), as confirmed by the Great Pumpkin Commonwealth at the 49th Safeway World Championship Pumpkin Weigh-Off held in Half Moon Bay, California, USA, on 10 October 2022. Grown by Travis Gienger (USA), the gigantic gourd, nicknamed "Maverick", was transported back to his hometown of Anoka, Minnesota (the self-described "Halloween Capital of the World"), where he enlisted friend and experienced pumpkin carver Mike Rudolph (USA) to transform it into an eagle-shaped jack o'lantern on 28 October 2022 for the town's All Hallows Eve celebrations.

The pumpkin's total OTT (over the top) measurement was 509 in (1,292.9 cm); the OTT combines the circumference with an end-to-end length and a side-to-side width.

"Maverick" had a pre-carved weight of 2,560 lb (1,161.2 kg); this, in fact, makes it the heaviest recorded pumpkin ever grown in North America. It was grown from an 1885.5 Werner mother seed.

Gienger and Rudolph bettered their own record having carved a jack o'lantern from a 233-in-round (591.8-cm), 2,350-lb (1,065.9-kg) pumpkin grown by Gienger in 2020. That one was tiger themed, as a nod to the Netflix series Tiger King.

The heaviest pumpkin overall to have been assessed in competition weighed 1,226 kg (2,702 lb 13.9 oz) was grown by Stefano Cutrupi (Italy) from Radda in Chianti, Tuscany, Italy, as ratified at the Campionato della Zuccone festival held in Peccioli, Italy, on 26 September 2021.