Do You Improve Faster in Rapid or Blitz? A Lichess Cohort Study

· Chess Research

By Chess Coach April 15, 2026

The debate is as old as online chess itself: should improving players stick to Rapid time controls to build deep calculation skills, or play Blitz to maximize pattern recognition through sheer volume? While grandmasters universally recommend longer time controls for beginners, the allure of quick games is undeniable.

To settle this debate with data, we conducted a comprehensive cohort study analyzing nearly one million games from over 1,100 active Lichess players. We tracked their rating trajectories, move quality, and plateau frequencies across different rating bands.

Note: While our raw data comes from Lichess, all ratings in this article have been calibrated to approximate Chess.com ratings (typically 200-300 points lower in the beginner-to-intermediate range) to make the advice more actionable for the broader chess community.

The Verdict: Rapid Players Improve Faster, But Blitz Players Plateau Less

The data reveals a nuanced reality that challenges conventional wisdom. While Rapid players do reach rating milestones faster and gain more points per game played, Blitz players actually experience fewer rating plateaus.

Key Findings Summary

Analyze your games Play a Puzzle

Let us break down the findings by rating band to provide a roadmap for your chess improvement journey.

The Beginner Phase: 500 to 835 (Chess.com)

The Data: Rapid is King

In the beginner phase, the data heavily favors Rapid chess. Players who specialize in Rapid reach the 735 Chess.com milestone (roughly 1000 Lichess) in a median of just 3 months, compared to 4 months for Blitz specialists.

Progression Speed

The reason becomes clear when we look at move quality. In the 500-835 range, the average Centipawn Loss (CPL)—a measure of how much worse a move is compared to the engine's top choice—is significantly lower for Rapid players (150.5 CPL) than Blitz players (157.3 CPL).

Beginners in Blitz simply do not have the time to process basic board vision, leading to one-move blunders that end games prematurely. Rapid provides the necessary buffer to scan for hanging pieces and basic tactics.

CPL Comparison

Board Example: The Hasty Center Break

Consider this typical Italian Game position. White has a solid setup but needs to complete development.

Italian Game Blunder

In Blitz, beginners frequently rush the center break with d4 (red arrow), blundering a pawn and the center after exd4. In Rapid, the extra time allows players to find the solid d3 (green arrow), preparing to castle and slowly build the position.

Actionable Advice for 500-835

Play 80% Rapid, 20% Blitz. Your primary goal is to eliminate one-move blunders. Play 15|10 or 10|5 Rapid to give yourself time to ask, "What is my opponent threatening?" before every move. Use Blitz only as a fun break, not as a primary training tool.

The Intermediate Climb: 835 to 1320 (Chess.com)

The Data: The Convergence

As players cross the 835 threshold (roughly 1100 Lichess), an interesting shift occurs. The progression speed between Rapid and Blitz players begins to converge. Reaching the 1320 milestone (1500 Lichess) takes both groups a median of 7 months from the previous band.

However, this is also where rating plateaus become most frequent. Our data shows that Rapid players in this band are more likely to hit a plateau (14.1% to 15.0%) compared to Blitz players (11.4% to 12.5%).

Plateau Analysis

Why do Rapid players get stuck more often? The answer lies in pattern exposure. Intermediate chess requires recognizing tactical motifs (pins, skewers, discovered attacks) instantly. A Blitz player playing 100 games a month sees vastly more tactical patterns than a Rapid player playing 30 games, building a stronger intuitive "tactical radar."

Board Example: The Tempting Sacrifice

In complex middlegames, intuition built through volume can save precious clock time.

Calculation Example

Here, the tempting sacrifice Bxf7+ (red arrow) looks aggressive but ultimately fails to a precise defense. Blitz players, having seen similar failed attacks repeatedly, might intuitively reject it and play the solid h3 (green arrow). Rapid players might burn 5 minutes calculating the sacrifice, only to realize it does not work, leaving them in time trouble later.

Actionable Advice for 835-1320

Play 60% Rapid, 40% Blitz. This is the ideal time to mix time controls. Use Rapid to practice deep calculation and endgame technique. Use Blitz (specifically 5|3 or 3|2, avoid 1-minute Bullet) to drill openings and build rapid pattern recognition. If you hit a plateau in Rapid, a two-week "Blitz diet" can often break the rut by exposing you to new ideas quickly.

The Advanced Hurdle: 1320 to 1810 (Chess.com)

The Data: Quality Over Quantity

As players push toward the advanced ranks, the pendulum swings back toward Rapid. Reaching the 1810 milestone (2000 Lichess) takes Rapid players a median of 9 months, while Blitz players lag behind at 10 months.

At this level, the CPL gap widens significantly. In the 1575-1810 band, Rapid players average a CPL of 121.4, while Blitz players sit at 138.0. The games are no longer decided by simple tactics, but by positional understanding, maneuvering, and precise endgame technique—skills that are nearly impossible to cultivate purely through Blitz.

Practice Volume

Furthermore, our practice volume analysis shows that playing 5-14 Rapid games a month yields an average rating gain of 14.4 points, compared to just 6.1 points for the same volume of Blitz games. At higher levels, deep focus on fewer games yields better results than mindless grinding.

Board Example: Endgame Precision

Endgames require exact calculation where intuition often fails.

Endgame Example

In this pawn endgame, White must activate the king. The intuitive Blitz move Kg4 (red arrow) is passive and allows Black counterplay. The precise Rapid move Ke3 (green arrow) centralizes the king and prepares to infiltrate, a concept that requires calculation to verify.

Actionable Advice for 1320-1810

Play 70% Rapid, 30% Blitz. Your improvement now depends on positional understanding and endgame technique. You must play games long enough to reach complex endgames with time on the clock. After every Rapid game, spend at least 10 minutes analyzing it without an engine first, then check your conclusions.

Conclusion: The Optimal Diet

The data clearly shows that specializing exclusively in one time control is suboptimal.

  1. Rapid builds the ceiling: It teaches you how to play good chess, lowering your Centipawn Loss and pushing your peak rating higher.
  2. Blitz builds the floor: It exposes you to a massive volume of patterns, reducing your plateau rate and making your basic tactical vision automatic.

If you want to improve as efficiently as possible, let Rapid be your main course and Blitz be your dessert.

Data and Methodology

This study analyzed 954,617 games from a cohort of 1,120 active Lichess players. Players were categorized as "Specialists" if over 50% of their games were in a single time control. Rating trajectories were tracked longitudinally over multiple years.

All Lichess ratings were mapped to approximate Chess.com equivalents using standard community conversion metrics to ensure the advice is applicable to the largest player base.

Underlying Data Files:

Chess Coach April 15, 2026

Frequently Asked Questions

Do you improve faster in rapid or blitz chess?

According to this Lichess cohort study, rapid players improve faster overall and reach rating milestones sooner. Blitz players, however, tend to plateau less often.

What did the Lichess cohort study analyze?

The study analyzed nearly one million games from over 1,100 active Lichess players. It tracked rating trajectories, move quality, and plateau frequency across rating bands.

Why might rapid help players improve faster?

Rapid gives players more time to calculate, think through plans, and review positions more carefully. The article finds that this leads to faster rating gains and quicker milestone progress.

Why do blitz players plateau less often?

The article suggests blitz may build pattern recognition through higher game volume. That can help players keep progressing in smaller steps, even if overall improvement is slower than in rapid.

Are the ratings in the study the same as Chess.com ratings?

No. The article says the Lichess ratings were calibrated to approximate Chess.com ratings, which are typically 200–300 points lower in the beginner-to-intermediate range.

What is the main verdict of the study?

The main verdict is nuanced: rapid players improve faster, but blitz players experience fewer plateaus. The best choice depends on whether you want faster rating gains or steadier long-term progression.

Should beginners play rapid or blitz to get better at chess?

The article notes that grandmasters generally recommend longer time controls for beginners. Based on the study, rapid is the better choice if the goal is faster improvement.