Most traders who practice with chart replay are doing it wrong. Not because they're studying the wrong patterns or using bad simulators, but because they're watching instead of logging. They'll spend two hours stepping through historical price action, feel like they learned something, and then sit down at live markets the next day and make the exact same mistakes they made last month.
The problem is retention. Watching price move and reacting with a gut feel is useful up to a point, but that point comes faster than most people think. After about 15-20 "trades" in a session without logging anything, you're doing pattern recognition training with zero feedback loop. You can't improve systematically without data, and you can't have data without records.
Here's how to actually log simulated trades so the practice compounds.
Why the logging step gets skipped
It slows things down. Stopping to write notes every time you enter a trade, document your reasoning, and record the outcome takes time. The simulator is right there. You could already be 10 candles further along. The temptation to just "keep watching" is real.
The other issue is that most people don't know exactly what to log. So they either log nothing, or they log vague things like "bought here, went up, won" which is useless for later analysis. There's no wrong answer in the moment, so nothing feels obviously worth recording.
The fix for both problems is having a template ready before you start the session. Pre-built columns in a spreadsheet, a note file with a consistent structure, or even a physical notebook with a specific format. The decision about what to log is made once, in advance. During the session, you're just filling fields.
What to log on every simulated trade
These are the fields that actually matter for later analysis. Not every simulator gives you all of this automatically, so some of it requires you to note it manually.
Before entry
Date and time of the simulated bar. Not the real-world date you're practicing, but the historical date showing on the chart. This matters because it lets you go back and find the exact bar later.
Asset and timeframe. Simple but easy to forget when you practice the same asset across 30 sessions.
Setup type. What pattern or condition triggered this trade? "Breakout above 30-minute opening range." "Pullback to VWAP on bullish day." "Break of structure at daily support." Be specific. "Looked good" is not a setup type.
Trend context. What's the higher timeframe doing? Uptrend, downtrend, ranging. One word is fine here.
Entry price. The exact price you decided to enter.
Stop price. Where you would have your stop loss. Pre-defining this before the trade gives your log meaning. Logging a trade without a stop is logging a gamble.
Target price. Where you're aiming to exit at profit. This lets you calculate the risk-reward ratio.
Risk amount. In dollar terms or R (one unit of risk). If you're risking $100 on this trade, write $100. If you're risking 1R, write 1R.
Why you took it. One or two sentences. Not a paragraph. "Price broke above 15-min high with volume after holding VWAP for 30 minutes" is enough. "I thought price would go up" is not.
During the trade
Any notable reactions. Did price spike to your stop and reverse? Did it stall at a resistance level you didn't mark? Did volume drop off unexpectedly? Write a quick note the moment you notice it. These observations in the middle of a live trade situation (even a simulated one) are different from what you notice in hindsight.
After exit
Exit price. Where did you actually get out (or where would you have, if the simulator doesn't execute automatically).
Exit reason. Stop hit. Target hit. Trailing stop moved to breakeven and triggered. Time-based exit. Market structure changed. This tells you a lot about your execution habits over time.
Result in R. If you risked 1R and made 2R, write +2R. If your stop hit, write -1R. Keep this consistent and you can calculate your expectancy later.
Trade grade. A simple A/B/C/F rating based on whether you followed your rules, not whether the trade won. A winning trade you should not have taken is still a bad trade. A losing trade where you followed your plan perfectly is still a good trade. This distinction matters.
Simple spreadsheet structure
For most traders starting out, a Google Sheet or Excel file works fine. Here's a column structure that covers everything without being excessive:
| Date (chart) | Asset | TF | Setup | HTF Trend | Entry | Stop | Target | R:R | Exit | Exit Reason | Result (R) | Grade | Notes |
|---|
That's 14 columns. Each row is one trade. After 50 rows you have your first meaningful dataset.
If you want something simpler for the actual session and can fill in the rest later, the minimum viable log during replay is: Setup type, Entry, Stop, Entry note, Exit, Result. Six fields. 30 seconds per trade.
Common logging mistakes
Logging only trades that worked. This one is almost unconscious. You take a bad trade, it fails quickly, and you catch yourself moving on without writing it down. Bad trades have more information in them than good ones. Force yourself to log every trade, especially the ones you'd rather forget.
Writing the result before the exit. Some traders look at how far price moved after entry before filling in their log. This introduces hindsight bias into their setup ratings. Fill in the entry fields before advancing the replay. Then advance and fill in the exit fields.
Rating the trade on outcome instead of process. Giving yourself an A because the trade won, even if you broke your rules to take it, trains the wrong habits. Rate on execution quality. Over a large sample, good execution on good setups produces profit. That's the relationship worth reinforcing.
Logging in a format you won't read later. If your notes are in five different places, a spreadsheet and two notebooks and a notes app, you won't review them consistently. Pick one format and stick with it for at least a month before deciding whether to change.
What to do with the data
Logging without reviewing is barely better than not logging at all. Every week or two, go back through your replay trade log and ask a few specific questions.
Win rate by setup type. Which setups are working and which ones keep failing? If your "VWAP bounce" setups win 60% of the time but your "opening range breakout" setups win 35%, that tells you something. Maybe you're misidentifying opening range breakouts. Maybe you're taking them in the wrong market conditions.
Average R per setup type. Win rate alone is misleading. A 35% win rate is profitable at 2.5:1 R:R. A 60% win rate is losing money at 0.5:1 R:R. Calculate average R by setup type to find where your actual edge is.
Grade distribution. If 70% of your trades are getting a C or below because you're not following your entry rules, that's the thing to fix before everything else. Setup selection doesn't matter if execution is consistently sloppy.
Exit quality. Are you hitting your targets or cutting winners short? Are your stops getting hit and then price reversing without you? Exit analysis often shows problems you'd never find by looking at entries alone.
The review doesn't need to be long. 20-30 minutes once a week, looking at the last 25-30 trades, is enough to see patterns. After two or three months of consistent logging and reviewing, you'll have a clear picture of what your actual edge is, if one exists, and what habits are costing you money.
Moving from replay logs to live trade logs
The setup you build for replay practice should carry directly into live trading. Same columns, same format, same review schedule. The only difference is real money.
This continuity matters. If you use one system for practice and then start from scratch with live trades, you lose the ability to compare. The whole point of extended simulator practice is building habits that transfer. The trade journal is one of those habits.
One thing does change when you go live: the emotional weight of logging a loss. Writing down "-1R" on a $200 losing trade feels different from logging it on a simulator. That's normal. The logging discipline you built in practice will help you do it anyway, methodically and without drama, which is exactly the response you want.
Start logging in your next session
Open ChartMini TradeGame and before you start your next replay session, open a blank spreadsheet and set up the column headers above. Even if you only log 5 trades in the session, you'll finish it with more useful information than you'd get from watching 50 candles without a record. The logging habit starts in the first session, not after you feel "ready."
Common questions
Do I need special software to log simulated trades? No. A Google Sheet works perfectly. Some traders use Notion databases or physical notebooks. The tool doesn't matter. Consistency does. Whatever format you'll actually use every session is the right format.
How many trades should I log before looking for patterns? At least 30-50 trades per setup type before drawing conclusions. With fewer than 30 trades, variance is too high. You might see a 60% win rate on 10 trades that drops to 40% over 50 trades. Give the data time to stabilize.
Should I include time spent in the trade? It's optional but useful, particularly if you're swing trading on daily charts. Knowing that your average winning trade runs 4 days and your average losing trade loses on day 1 tells you something about trade management. For scalping and fast day trading, time is less useful.
What do I do if my log shows no edge after 100 trades? That's valuable information. It means one of three things: the setup you've been practicing doesn't work, you're not identifying the setup correctly, or your execution is poor enough to eliminate the edge. Look at the A-grade trades only. If those also show no edge, the setup is the problem. If those perform well but low-grade trades drag the average down, execution is the problem.