With 130 days to go until the 130th Boston Marathon, the professional fields are already shaping up, with star power at the top.

The Boston Athletic Association announced Thursday that all four champions from 2025 will return to defend their titles, as well as the inclusion of the men’s and women’s American record-holders in the pro fields.

It’s believed to be a first for the Boston Marathon to have all four defending champions, plus both American record-holders on the start list.

“With 130 years of history, it’s rare that you have something that is unprecedented,” BAA president and CEO Jack Fleming told the Globe. “Athletes have choices, some of them want to run different courses. So when they do elect to return to Boston, we feel that additional emotional connection with them, as we

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