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Never Stop Questioning: What Tennis Innovation Can Learn from Einstein What Tennis Can (and Cannot) Learn from Albert Einstein Ace, Marvel, Spy: A Novel of Alice Marble The Final Tiebreaker The Geau Axiom Duffel Bag Tennis Beyond the Headlines: April 21, 2025 A Tennis Resurrection Story for Easter

About the Wheelchair

Wheelchair players compete under the ITF Rules of Tennis. The modifications for wheelchair tennis are relatively minor. This establishes tennis as one of the premiere sports for adaptive competition. Head to head competition is possible between adaptive and non-adaptive competitors.

Rolling Along with Wheelchair Tennis

When this sequential march through the ITF Rules of Tennis was first initiated, I anticipated that discussion of wheelchair tennis might be omitted altogether. However, after the backlash against the USTA for attempting to eliminate the wheelchair tennis from the US Open in 2020, it became a topic that was impossible to ignore.

Tie-Break Games and Bag Tags

As I continue my walk down memory lane of this site’s posts in 2020, I am confronted by the Fiend at Court bag tags. These tags were printed with the relevant rules for how to start a new set following the conclusion of a tie-break game. I designed and ordered the bag tags in anticipation that I would use them as a business card for anyone who showed an interest in this site. I would have anticipated that all of the bag tags would be gone by now.

USTA Friend at Court 2021?

Since it is 2021, I started looking around for the updated USTA Friend at Court for the current year. As (eventually) confirmed by whoever is behind the USTA Officiating email address, it is not out yet. Long time readers of may recall that the 2020 rules discussion started out using the 2019 version of the USTA Friend at Court. There apparently is a little lag at the first of each year.

Tennis Net Tension, Pickleball, and Wrenches

In the earliest days of this site, I posed the rhetorical question, “How do I not routinely carry a socket wrench in my bag to adjust net tension?” That quote came from “I just can’t handle the tension!” which was published on January 9, 2020 and discussed the rules around the proper tension for the net. At the time, I lamented that I had never seen a USTA umpire check the tension of the net prior to the match.

Player Analysis Technology: Policy, Regulation and Smartwatches

The International Tennis Federation (ITF) asserts the authority over whether Player Analysis Technology is legal for use during sanctioned play. Section 31 of the ITF Rules of Tennis published in the USTA Friend at Court essentially boils down to specification of the policy and procedures. The definition of Player Analysis Technology is actually in an appendix to the rules, and was the subject of last week’s post.

Player Analysis Technology

The very last section in the ITF Rules of Tennis published in the USTA Friend at Court is “Player Analysis Technology.” Essentially that section of the rules indicates that player analysis technology that is approved must comply with the specifications in Appendix III. Flipping back and forth between the main body of the rules and the appendices is the rhythm of life when consuming the ITF Rules of Tennis.