The two, who have reportedly been dating for over a year, were seen getting cozy at a hockey game as they watched the New York Rangers take down the Washington Capitols in game 7.
A source described their relationship since Elin's divorce from Tiger in 2010. "He's never been so happy. He and Elin have strong feelings for each other… He's a classic all-American guy. He's handsome, a total gentleman and low-key. He's never been in the press. Elin's a very lucky girl; he's a great guy but very private."
UPDATE: In a contradictory report, People.com says Elin and Jamie are no longer dating, having ended their relationship in January. A friend of the Swedish model told People, "She says Jamie's a great guy – and they're still friends – but I think it was just too early [after the divorce] for her to get serious with anyone."
The friend also said Elin wasn't even at the hockey game on Saturday.
Nordegren and Dingman meet at a Red Cross Ball in Florida last year. Dingman was previously linked to actress Bridget Moynahan and Princess Madeleine of Sweden.
Former Swedish model and Tiger Woods ex-wife, Elin Nordegren, and her wealthy investor boyfriend, Jamie Dingman, were spotted ramping up their romance Saturday night, reports the NY Post.