The same setup against almost anything Black does. Reliable, low maintenance, and the reason many players never have to study an opening at all.
From 578 games by 207 Chess.com players of every level, September 2026.
HOW IT SCORES AT YOUR LEVEL
White's score with the London System, by rating
Under 100053.1% ±9.2
In line with White's average at this level (51.8%). 114 games by 53 players · 2.6% draws
1000–139951.6% ±10.3
In line with White's average at this level (52.4%). 91 games by 35 players · 6.6% draws
1400–179948.0% ±13.7
In line with White's average at this level (51.4%). 51 games by 20 players · 5.9% draws
1800+2 players · not enough games to judge yet
The marker on each bar is White's average score across all openings at that rating and time control. We only call an opening above or below that average when the gap is far beyond the margin (±) — about 1.7 times it — because we compare dozens of openings at once, and chance alone would make a few of them look special.
WHERE THE POINTS GO
The typical mistake
If you play it
A system opening saves you preparation, not thinking. Playing the same setup on autopilot is exactly how it goes wrong: against some replies the standard piece placement is simply the wrong one. Learn the two or three positions where you have to deviate.
If you face it
You are up against a setup the other player has built hundreds of times, so they will always know the position better than you do. The answer is not a clever refutation — it is having one reliable structure against it, so that you are not the one thinking from scratch.
WHAT PEOPLE ACTUALLY PLAY
Most played lines
London System99.8% of the sample's games in this opening
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How these numbers are made
Every week we draw about 1,008 Chess.com players at random from the public player lists of twelve countries, never one already drawn in the previous weeks, and read their rated games from the last complete month. These numbers add up the latest 2 weekly samples: 2,016 players, 1,382 of whom played in September 2026. A game counts once even if both players are in the sample, and no single player can add more than 10 games to the same opening and time control, so one enthusiast cannot tilt the numbers. Rating bands use the average rating of the two players in that time control, because ratings are not comparable between blitz and rapid. Bands with fewer than 40 games or 10 players are shown but not judged. The score counts a draw as half a point. The ± is a 95% margin, but a gap is only judged beyond 3.3 standard errors: with many openings compared at once, a looser line would flag openings by pure chance. Players on this site are never part of the sample.