Seeding in tennis is a placement rule rather than a reward. It fixes where the strongest entrants sit in the bracket so that they cannot meet until a defined round.
How seeds are positioned
The top two seeds are placed at opposite ends of the draw, so they can only meet in the final. The next two are distributed into the remaining quarters.
Subsequent pairs are allocated to halves and quarters by drawing between the available positions, which keeps the arrangement partly random within a fixed structure.
Unseeded players are then drawn into the remaining slots without restriction, which is why an unseeded section can end up markedly stronger than a seeded one.
What the structure is protecting
Without seeding, the two best players could meet in the first round, and the final could feature neither. The closing rounds carry the tournament's commercial value.
Broadcasters, sponsors and ticket buyers commit in advance on the expectation that the later stages will feature recognisable names playing meaningful matches.
Seeding raises the probability of that outcome without guaranteeing it. It shapes the distribution of results rather than determining them.
Why seeding is not always ranking
Most events seed strictly by ranking, but some adjust for surface, using a formula that weights recent results on the relevant surface more heavily.
The justification is that a general ranking averages performance across surfaces that reward different games, so it can misdescribe a player's strength on grass or clay.
Adjustment is contested, since it introduces a judgement into what would otherwise be a mechanical rule, and players disadvantaged by it say so publicly.
Protected rankings and the returning player
A player absent through long injury may receive a protected ranking for entry purposes, based on the position held before the absence.
Entry and seeding are treated separately. A protected ranking usually secures a place in the draw without securing a seeded position within it.
That separation is deliberate. Entry restores an opportunity, while seeding confers an advantage over players who competed throughout the period.
Where the system produces distortion
The number of seeds relative to draw size determines how much protection exists. Fewer seeds mean stronger players meet earlier and the draw becomes less predictable.
Rankings also lag. A player improving rapidly can be unseeded while ranked well below their current level, which produces the difficult first-round draw others complain about.
Seeding therefore describes the recent past applied to a future event, and the gap between the two is where most of the tournament's disruption originates.
