Alex Duff -- professional tennis photographer and longtime tennis player, tennis fan and Roger Federer fan -- joins host Carl Bialik to talk about what makes some Federer fans so annoying. 

Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Freelance Frankfurt-based sportswriter René Denfeld joins host Carl Bialik to talk Alex Zverev and the wide-open races for world No. 1 in the ATP and WTA. Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Denfeld on Twitter: https://twitter.com/Renestance

Katrina Williams, university student in Melbourne, tells host Carl Bialik why she loves Novak Djokovic the player and Novak Djokovic the person. Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Williams on Twitter: https://twitter.com/returnwinner
The Secret to Victory on Serena Williams: http://thesecrettovictory.com

Stephanie Kovalchik, data scientist at Tennis Australia's Game Insight Group, on comparing the Roger Federer of 2017 with the Federer of 2015, and comparing Serena Williams with the men's field. Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Kovalchik on Federer: http://on-the-t.com/2017/07/28/federer-2017/
Kovalchik on Williams: http://on-the-t.com/2017/06/27/serena-defense/
Kovalchik on Twitter: https://twitter.com/StatsOnTheT

Chris Almeida on the Big Four, The Ringer's tennis beat, and his
tennis-writing inspirations

Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Links:
Chris's articles for The Ringer: https://theringer.com/@chris.almeida
Chris's favorite David Foster Wallace writing on tennis:
https://www.scribd.com/doc/134106158/How-Tracy-Austin-Broke-My-Heart-David-Foster-Wallace

Newyorker.com contributing writer Louisa Thomas joins host Carl Bialik to talk about our Wimbledon champions, the reign of King Roger and the burden of experience. Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Tennis writer Tom Perrotta, Thirty Love's first repeat guest, join host Carl Bialik from London on Middle Sunday of Wimbledon to talk about the immensely entertaining women's draw, the Big Four's chances and biggest threat, and what makes Wimbledon special. Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Wall Street Journal columnist Jason Gay joins host Carl Bialik to talk Wimbledon, the year of the geezers, Jason's first trip to the French Open and his own tennis game. Produced by Jorge Estrada, with music by Lee Rosevere.

U.K.-based freelance tennis writer Tumaini Carayol joins Thirty Love host Carl Bialik from the WTA event in Mallorca to talk about the return to the WTA of Victoria Azarenka and Petra Kvitova, why Novak Djokovic might need a break from tennis, and his own unlikely career path. Produced and edited by Jorge Estrada, with music by Lee Rosevere.