PHILADELPHIA — While writing a sermon in September, Cheryl Pyrch, the pastor of Summit Presbyterian Church, needed an assist. On the topic of greatness and Jesus Christ, she wanted to open with recollections of greats in other spheres.

She didn’t have to look very far for a source.

Having encountered Wilt Chamberlain in passing almost 40 years ago, she decided he was the great she wanted to highlight. And details of his career — four Most Valuable Player Awards, seven N.B.A. scoring titles — were close at hand, literally and figuratively through Sports Reference, a monolith of sports data websites that just happens to rent space from the church.

“I didn’t know all this in 1980,” Pyrch told the congregation as she described Chamberlain’s awards during the Sunday service. “I got it yesterday from a Sports Reference website.”

The ubiquitous Sports Reference family of websites — Baseball-Reference.com, Basketball-Reference.com, Pro-Football-Reference.com, Hockey-Reference.com, and so on — are some of the most popular sports almanacs on the internet.