How a fortnight of foot traffic changes the court beneath the players

Where the wear actually happens

Players do not move uniformly around a court, so wear concentrates in the areas where they stand and turn most frequently. The regions behind each baseline and around the service positions receive far more traffic than the rest of the surface. Those areas lose their grass first, exposing the compacted soil beneath and creating a surface with different properties from the grass surrounding it.

The change is gradual within a single match and pronounced across a tournament, since the same courts host repeated matches. This produces a court that is genuinely inconsistent by the later rounds, which is a feature of the surface rather than a maintenance failure.

Why bare ground behaves differently

Grass provides a cushioning layer that absorbs some of the ball's energy and offers a particular amount of friction on contact. Bare, compacted soil offers more friction and less cushioning, so a ball landing on it tends to grip more and bounce slightly higher. The difference is not large in absolute terms and it is very significant to a player timing a shot at high speed.

The result is a court where the ball behaves one way near the baseline and another way in the areas that remain grassed. Players adjust by favouring shots that land in the more predictable areas, which changes the geometry of how points are constructed.

How the footing changes

Fresh grass is slippery, particularly in the first days when it retains moisture and has not yet been compacted by play. As the grass wears away, the exposed soil provides considerably more grip, which changes how players can push off and change direction. That improvement in footing is welcome and it arrives unevenly, so a player may find secure footing in one area and not in another.

Injuries on the surface cluster in the early rounds for this reason, when the courts are at their most slippery and least worn. Players unfamiliar with the surface are most exposed here, since the necessary adjustments to footwork are not intuitive.

What maintenance can and cannot do

Groundstaff cut, roll and water the courts between days, which controls the height of the remaining grass and the moisture in the soil. None of that regrows worn areas within a fortnight, because grass simply does not establish itself quickly enough under continuous play. Courts used less frequently retain more grass, which is why the show courts and the outside courts can play noticeably differently.

Scheduling therefore distributes wear as evenly as circumstances permit, which is a constraint on which matches can be placed where. The whole system is an attempt to manage a decline that cannot be prevented within the duration of the competition.

Why the change favours certain players

A worn court with more grip and a slightly higher bounce moves the surface a little closer to the conditions found elsewhere on the calendar. That reduces the advantage held by players whose game depends on the low, fast bounce of fresh grass in the opening days. Players who construct points from the baseline find the later rounds more accommodating than the earlier ones.

This is one reason results at the surface's specialist events have gradually come to resemble results elsewhere, alongside changes in equipment and preparation. The court a finalist plays on is meaningfully different from the one an early-round competitor faced, which is unusual in any sport.