BOSTON -- With a wink and a nod, Curt Schilling made a unique promise to his wife on Sunday in advance of her running in Monday's 109th Boston Marathon.

The Sox ace promised Shonda that he wouldn't throw his first career no-hitter.

"I'm not allowed to. Actually, according to her, we're just supposed to win," the right-hander said. "She's never missed a home start ever in my career, so there's some heart strings tugging for her. But this is a huge day for her, because she's doing so much good, creating awareness for the SHADE Foundation, for skin cancer awareness and the local ALS chapter. There's just so much good that's going to come out of this."

"For me, it was a way to raise money without Curt having to do it," added Shonda Schilling.

Shonda Schilling relayed the very unofficial deal with her husband prior to Sunday's game.

"I told him, 'Don't even come to the finish line if you do that,'" she said.

Shonda Schilling will be joined by two other Red Sox wives, Dawn Timlin and Stacy Lucchino, in the grueling 26.2-mile world renowned road race.

Timlin will be running for the Angel Fund, which supports ALS research. Mike Timlin's mother died of the disease and Dawn Timlin, who ran in 2004, promised to get involved in the race ever since.

"I have a goal to race well below four hours, but we'll see how it goes," she said.

"The training that goes into doing something like this is phenomenal. That's what makes me proud of her," said the Red Sox right-handed reliever. "I hate running. I can't imagine running 26 miles. It's a grueling process and it takes a lot of mental stability, and that's what I'm proud about."

Lucchino, an avid bicycle rider who raise money via the annual Pan-Mass. Challenge, is raising money for the Dana Farber Institute for cancer research. Sox president Larry Lucchino was treated for and cured of cancer at Dana Farber.

"I have some issues with my knees, so I'll have to listen closely to them and not my head as I'm going through the race," she said. "I'll go as long as I can, but I'm not sure I'll be able to finish."

The irony for Shonda Schilling will come with the weather forecast, which calls for a bright sunny day with temperatures in the 70s.

"It's going to be a really sunny day, so we have some special clothes," said Schilling, who added that she will wear a hat and sunglasses but will be careful to not get the sunblock in her hair as she runs. Schilling is a survivor of melanoma and founded the SHADE Foundation to promote sun safety and skin cancer prevention and research. Her husband has full confidence that the day will turn out well.

"She's done it once, so I know she'll be able to do it," he said. "It's a big day for her. Hopefully, with a win tucked under my belt, it'll be awesome."