Tennis desk

The return-of-serve pattern at the WTA Finals — and why it travels into the semis

Three matches into the WTA Finals round-robin, one return-of-serve pattern has held up against every server in the field. It is not the most photogenic part of the game, but it is the part that decides who controls the second point of the rally.

By the tennis deskFiled 02:14 IST6 min read

What the return-of-serve pattern is

The pattern is simple. The returner stands two feet further back than the baseline on the deuce side and splits the return position on the ad side. The body shape is a closed stance, weight on the back foot, racket head up and held high. The first step is a small jab toward the ball, not a full transfer. The second step is the strike.

The pattern produces a return that sits between the opponent's feet and the service line, not deep to the baseline. The returner is not trying to win the point on the return. The returner is trying to take the server's first groundstroke away.

Why it works against a heavy first serve

Against a heavy first serve, deep returns are a mistake. A heavy first serve kicks up to shoulder height. A deep return from the baseline hits the back fence or sails long. The returner has to come in to find a shorter return, which is exactly what the pattern asks for.

The jab step closes the distance to the ball. The closed stance absorbs the pace. The return sits short. The server is now hitting a forehand from inside the baseline, on the back foot, with the returner already moving forward.

Why it works against a slice serve

Against a slice serve, the pattern is even more effective. A slice serve pulls the returner wide on the deuce side and skids low. A deep return from the baseline has to clear the net by six inches and land in the back third. The margin for error is small.

Coming in two feet, the returner can take the ball at thigh height and play a flatter return down the middle. The slice serve is designed to pull the returner wide. The pattern answers by attacking the middle of the court, which is where the server is not.

What the data shows across the group stage

Three matches into the round-robin, the returner using the pattern has won 58 per cent of first-serve return points. The field average is 36 per cent. The pattern is not generating aces against — the aces against are flat — but it is winning the next point.

The pattern also forces the server into a specific shot shape. The server has to hit a high forehand from inside the baseline. If the server hits a slice, the returner has time to set. If the server hits a topspin forehand, the returner has time to move forward. The server is choosing between two losses.

What to watch into the semis

The semis are the test. The field narrows from eight to four. The servers in the semis are the four who held their service games at the highest rate in the round-robin. They will be the four best servers on tour this week.

If the pattern holds up against four servers who are playing their best, it is the most important tactical development of the week. If it breaks down, the field reverts to the deeper return position and the server's first serve becomes the dominant variable again. The tennis desk will be watching.

Baseline backhand return position
The return position that has held up across three matches.
Server pre-serve routine
The server’s first groundstroke is the shot the pattern is targeting.
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This story sits on a combination of accredited correspondent reporting, official league data and the desk’s own statistical model. Where a claim depends on attribution, the source is named in the article. Where a claim depends on the model, the methodology is published in full.

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The model used in the story is the desk’s standard v3, rebuilt earlier this year. The methodology is published in full on the predictions desk. Readers can verify the inputs against the official sources named in the model documentation.

The desk’s editorial standards apply to every article, including this one. The standards are published on the editorial-standards page.

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