KWFN (97.3 FM) – branded as 97.3 The Fan – is a commercial sports radio station licensed to serve San Diego, California.

In addition to a standard analog transmission, KWFN and the booster relay network broadcast over two HD Radio digital subchannels,[2] and is available online via Audacy.

[4] The company filed an application in 1989 to construct a single full-on repeater to help improve KSON-FM's coverage in the rapidly growing suburbs of Northern San Diego County.

In 2003, Jefferson-Pilot instead acquired another station at 92.1 FM, licensed to Escondido, and converted it into a simulcast for KSON-FM to cover Northern San Diego County.

The station added more George Strait music to its playlist, and held on-air giveaways of memorabilia and tickets to the San Diego show.

[12][13][14][11] On March 1, 2018, at 2 p.m., KEGY began stunting with rock music and no imaging, although notably playing "Welcome to the Machine" by Pink Floyd at the top of each hour.

[15][16] A morning show, Kevin Klein Live (moving from sister station KITS/San Francisco) was scheduled to premiere on March 29, 2018, coinciding with Major League Baseball's Opening Day.

[19] Padres chairman Ron Fowler criticized KEGY's new format as being "almost shock jock radio" and contradictory to his opinion that baseball is "family entertainment."

I've failed at making a good first impression, but I hope that you will give me another chance to provide entertainment and good-natured laughs when I go on the air on Thursday morning.

Entercom San Diego market manager Bob Bolinger said the company had used the Kevin Klein controversy as an opportunity to reevaluate KEGY's programming, and explained that "the station was always going to be largely about sports and we determined the right thing to do was to go 100% all-in."

As part of the relaunch, Dan Sileo was moved to mornings, The Men's Room was dropped, and the station also acquired The Jim Rome Show previously heard on XEPRS.

In the first three months of the all-sports format, KWFN was among the lowest-rated stations in the market, with Sileo's morning show unable to tabulate a Nielsen Audio rating due to its small number of listeners.

[30] On April 17, 2019, Sileo left KWFN's morning show but remained with Entercom, hosting a weekend program on co-owned WEEI-FM in Boston.

The San Diego Union-Tribune speculated that Sileo's departure was tied to listener backlash surrounding plans to have Padres staff members appear on his show for interviews on Friday mornings.

In 2019, Entercom received construction permits for five fill-in boosters to improve KWFN's coverage, to be located near La Jolla, Ramona, San Marcos, Escondido, and Encinitas.