How to Explain Chess Ratings to Parents Honestly
A coach's translation kit for chess ratings: what Elo and Glicko actually measure, why one child has three different ratings, and how to show progress honestly.
By the ChessCore team · Published June 10, 2026 · 11 min read
Bottom line
To explain chess ratings to parents, say this: a rating is an estimate of playing strength relative to one specific pool of players, not a grade out of 100. It moves when results differ from what the system expected, it swings wildly for new players and settles with games played, and a Lichess, Chess.com, and FIDE number for the same child will always differ because the pools differ.
TL;DR
- A chess rating estimates strength relative to one pool of opponents, which is why the same child holds different numbers on Lichess, Chess.com, and FIDE.
- New players' ratings swing by large amounts at first because the system is still uncertain, then settle as the game count grows.
- The honest answer to a rating drop is a six-month chart and the actual games, not a defence of this month's number.
- An honest rating chart shows the full history with platform labels and game counts, never a cherry-picked window that starts at the lowest point.
Key facts
- The Elo system updates a rating after each game based on the gap between the expected result and the actual result. (elo-wikipedia)
- The Glicko system, used by Lichess, adds a rating deviation value that measures how uncertain the rating is, which is why new accounts move fast and old accounts move slowly. (glicko)
- FIDE publishes official ratings only from games played in FIDE-rated over-the-board events, on a list maintained at ratings.fide.com. (fide-ratings)
- Lichess exposes full rating history per account through its public API, so a coach can chart every student's real curve instead of retyping numbers. (lichess-api)
- In ChessCore, rating numbers shown to parents are synced from the platforms rather than typed by hand, so the chart a family sees matches the profile they can check themselves. (product behavior)
What does a chess rating actually measure?
A chess rating measures one thing: how a player's results compare with the results the system expected against rated opponents. It is a relative estimate of strength inside a specific pool of players, not a percentage score, not a grade, and not a measure of effort or talent. When a parent asks what the number means, that is the sentence to give them first.
The oldest and most familiar version is the Elo system, named after the physicist Arpad Elo and used by FIDE and many national federations [1]. Elo works like a prediction market with exactly two participants. Before a game, the rating gap implies an expected score: a player rated 200 points higher is expected to win clearly more often than not. After the game, the rating moves by a slice of the difference between expectation and reality. Beat someone much stronger and you gain a lot; beat someone much weaker and you gain almost nothing, because the system already expected it.
Most online platforms use a refinement of this idea. Lichess uses Glicko-2, a descendant of Mark Glickman's Glicko system, which adds a second number called rating deviation [2]. Rating deviation is the system's honesty about its own uncertainty. A brand-new account has a high deviation, so the system says, in effect, I have no idea yet, and moves the rating in big jumps. A player with hundreds of recent games has a low deviation, so each result nudges the number gently. Parents do not need the mathematics; they need the translation: the rating is a guess, and the system itself tracks how confident the guess is.
The one-line translation for parents
A rating is the system's best current guess of strength against one set of opponents. It is allowed to be wrong in the short term, and it gets more trustworthy the more games sit behind it.
Why does my child have three different ratings?
Because each rating lives in a different pool of players, under a different formula, with a different starting point. A Lichess rating, a Chess.com rating, and a FIDE rating for the same child routinely differ by hundreds of points, and none of them is lying. They are answering different questions: how strong is this child relative to Lichess users, relative to Chess.com users, and relative to FIDE-rated tournament players.
| Rating | System | Pool | Why the number runs high or low |
|---|---|---|---|
| Lichess | Glicko-2, starts new accounts at 1500 [2] | Lichess players in that time control | Generous starting point and a broad casual pool push numbers higher than FIDE |
| Chess.com | Glicko-based, per time control [5] | Chess.com players in that time control | Different default start and pool mix, so numbers usually sit between Lichess and FIDE |
| FIDE | Elo, official list at ratings.fide.com [1][3] | FIDE-rated over-the-board tournament players | The pool is selective and serious, so the same child's number is usually the lowest of the three |
The comparison parents instinctively reach for, my child is 1600 online but only 1100 FIDE, so which is real, has a clean answer: both are real, and neither converts to the other. The pools barely overlap. A casual blitz pool on a free website and a hall full of tournament regulars are different populations, and a rating only ever ranks you inside your own population. The practical advice for families is to pick one number per context and track it against itself over time: the Lichess rapid rating against last quarter's Lichess rapid rating, the FIDE rating against last season's FIDE rating, never one platform against another. Our comparison of Lichess and Chess.com for academy use covers how the platforms differ for coaching workflows beyond the rating question.
What is normal rating progress for a child?
Normal progress for a child is a noisy line that trends upward in steps, not a smooth slope. The early months look dramatic in both directions because the rating system is still uncertain about a new player, and because the player is genuinely changing week to week. After a few hundred games the line calms down, and from there progress arrives in plateaus punctuated by jumps, usually after a new idea finally clicks.
The early volatility deserves its own conversation with families, because it is the single biggest source of misread signals. A new Lichess account starts at 1500 with a high rating deviation, which means the first twenty games can move the number by a hundred points or more in either direction [2]. Parents who watch daily see a child gain 120 points in a fortnight and conclude the child is a prodigy, or lose 90 and conclude the coaching has failed. Neither is true. The system is calibrating, and the sensible coaching position is to treat any rating younger than a few dozen games as provisional and say so out loud before the family ever sees the chart.
On the shape of progress by age and hours, be careful to present what you have: coaching observation, not statistics. In our experience across academy batches, a primary-school child training twice a week with some home practice typically shows visible movement across a season, while a teenager starting fresh often climbs faster at first because they read and study independently, then meets the same plateaus everyone meets. A child who only plays in class and never plays at home progresses more slowly than the family expects, and that is a practice-volume conversation, not a talent verdict. We state these as patterns we observe, we never dress them up as percentages, and we tell parents the honest baseline: improvement correlates with games played and games reviewed far more than with any trait visible in the first month. For students stuck on a long flat stretch, our guide to the chess rating plateau covers what flat periods mean and what actually breaks them.
What should worry a coach is not a flat line but a flat line with falling activity. A plateau at thirty games a month is a player consolidating. A plateau at four games a month is a player quietly disengaging, and the rating chart will not show the difference unless game volume is plotted next to it. That is why our progress conversations always pair the rating line with the games-played count for the same period: the two lines together tell a story that neither tells alone.
Aarav R.
Batch B2 · Tue/Thu · joined Aug 2025
1395
Rapid · synced from Lichess
Won vs. 1410 · French Defense
Best gameMissed fork on move 23
Homework setHow do you talk about a rating drop?
You talk about a rating drop by zooming out before you explain anything. Open the six-month chart, not the one-month chart, and let the parent see that this month's dip is a wiggle on a line that is still higher than where it started. Most rating-drop conversations end right there, because the anxiety was about the last three weeks and the chart is about the year.
When the parent needs more than the chart, move from the number to the games. A rating is a lagging summary; the games are the evidence. Pull up two or three recent losses and show what actually happened: time trouble in winning positions, a new opening that is not comfortable yet, stronger pairings this month. Each of those is a concrete, fixable story, and concrete stories calm families in a way that rating theory never does. Our guide to reviewing a student game in fifteen minutes shows the fast version of this workflow.
A script that works
Here is the six-month line: still up 80 points from January. This month dipped because we switched her to a new defence and she is losing some games while she learns it. Here are two of those games. I would rather she learns this now at 1300 than at 1700. Ask me again in six weeks and we will look at the same chart together.
Two things make this conversation easy to have honestly. First, never have promised a number in the first place: commit to process, games played, openings learned, endgames mastered, and let the rating follow. Second, have the history ready before the question comes. A coach scrambling to reconstruct three months of results looks evasive even when nothing is wrong. The structure in our chess progress report template keeps the rating section honest by default, and the broader reports guide covers how the rating chart fits into a full progress report.
What should a rating chart show parents?
An honest rating chart shows the full available history, labels which platform and time control the line comes from, and plots game volume alongside the rating. The test is simple: if the family opened the child's Lichess or Chess.com profile themselves, would they see the same story the chart tells? If yes, the chart is honest. If the chart starts at the season's lowest point and stops at its peak, it is marketing.
- Full history, or at minimum the last six months, never a window chosen after looking at the data
- Platform and time control on the label, because a Lichess rapid line is not a FIDE line
- Games played per month next to the rating, so a quiet month explains a flat line
- Provisional periods marked or mentioned, since early numbers carry high uncertainty [2]
- The same chart every report, so families learn to read it instead of relearning a new format
The cheapest way to keep charts honest is to remove the human from the charting. Numbers retyped into a slide deck drift toward flattery, not because coaches lie but because everyone prefers the better-looking window. A chart drawn directly from synced platform data has no window to choose: Lichess publishes each account's full rating history through its public API [4], Chess.com profiles show per-format histories publicly [5], and a FIDE rating is checkable by anyone on the federation's own list [3]. When the source is the platform, the chart and the profile cannot disagree.
March progress report · Aarav R.
1 of 14 drafts for Batch B2
Aarav attended 11 of 12 classes this month and played 18 rated games, moving from 1348 to 1395.
His endgame conversion improved clearly. Next month the focus is back-rank defense, based on the mistakes tagged in his last three games.
Highlighted numbers come from your attendance and rating records. The AI cannot change them.
Goes to the Sharma family after approval
When should a child get a FIDE rating?
A child should pursue a FIDE rating when they are playing over-the-board tournaments regularly and holding their own against rated opponents, not as a milestone to rush. A FIDE rating only comes from games against rated players in FIDE-rated events [3], so the practical question for a family is whether the child is ready to play several such events a year and absorb the early losses that getting on the list usually involves.
Set the expectation that the first published FIDE number will likely sit far below the child's online ratings, for the pool reasons covered above, and that this is normal rather than a setback. The early FIDE number is a starting line, not a verdict. For families in India, the path runs through state association events and national federation registration before FIDE rating becomes possible; our guide to getting a FIDE rating in India walks through that sequence step by step. For most academy students, the right order is: stable online rating first, local unrated and rated events second, FIDE list third.
What to tell an eager family
An online rating tells us she is improving. A FIDE rating tells the world she competes. We go for the second when tournament play is already a habit, because the list rewards players who keep showing up, not players who appear once.
Frequently asked questions
What does my child's chess rating mean?
It is the rating system's current estimate of your child's playing strength relative to other players in the same pool, on the same platform and time control. It rises when results beat the system's expectations and falls when they trail them. It is not a grade or a talent score, and a single month's movement means very little compared with the six-month trend.
Is a Lichess rating the same as a FIDE rating?
No. Lichess uses the Glicko-2 system and starts new accounts at 1500 inside a large casual online pool, while FIDE uses Elo across a selective pool of over-the-board tournament players. The same child commonly holds a Lichess number hundreds of points above their FIDE number. Neither converts to the other; compare each rating only with its own history.
How do I show rating progress to parents without misleading them?
Show the full history or at least six months, label the platform and time control, plot games played alongside the rating, and never pick the chart window after looking at the data. Pair the chart with two or three actual games when explaining a dip. If the family could open the child's public profile and see the same story, the chart is honest.
Why did my child's rating swing so much in the first few weeks?
New accounts carry high uncertainty, which Glicko-style systems track explicitly as rating deviation, so early results move the number in large jumps while the system calibrates. Swings of a hundred points or more in the first weeks are normal and carry little signal. Treat any rating younger than a few dozen games as provisional and judge progress only after it settles.
Should I be worried if my child's rating has been flat for months?
Not by itself. Plateaus are a normal shape of chess improvement, and players often consolidate skill for months before a visible jump. The signal worth checking is activity: a flat rating with healthy game volume is consolidation, while a flat rating with collapsing game volume suggests disengagement. Ask about games played per month before drawing any conclusion from the line.
Sources
- [1]Elo rating system · accessed 2026-06-10
- [2]The Glicko system, Mark Glickman · accessed 2026-06-10
- [3]FIDE Ratings and Statistics · accessed 2026-06-10
- [4]Lichess.org API documentation · accessed 2026-06-10
- [5]Chess.com · accessed 2026-06-10
Written by the ChessCore team
Drafted with AI, fact-checked and approved by a human before publishing, the same guardrail our product applies to every report it sends. Last updated June 10, 2026. Read our editorial standards.
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