TRADRILL / GUIDE / PRACTICE ROUTINE
How to Keep a Trading Journal (for Practice)
Written by DUOCODE TECHNOLOGYPublished and reviewed 8 min read
A trading journal is a record of what you decided and why, written so a reviewer could understand it without the chart. For practice its job is not to celebrate winning trades — it is to make your process visible: what the rule required, what you actually did, and where the two diverged. Keep it during simulated sessions so the habit is built before capital is at risk.[1]
The most common mistake is journaling only outcomes. A profit can come from a broken rule and a loss from a disciplined one, so a log that records only profit and loss teaches the wrong lesson. Record the decision and its adherence first; note the simulated result second. FINRA notes that frequent trading raises costs and day trading can be extremely risky — a journal that tracks restraint and rule-following is more useful than one that tracks a score.[3] [2]
Short answer
- Log the decision and whether you followed the rule — before the simulated result.
- Keep entries short and structured so you can review them quickly and consistently.
- A journal can show whether you followed a process; it cannot prove future or real-money results.
What a practice journal is for
The purpose of a practice journal is a reliable feedback loop. Trading gives noisy feedback — a good decision can lose and a bad one can win — so you cannot judge a process from a single result. A journal lets you separate the decision from the outcome and look at behaviour across many entries, where patterns you can actually fix become visible.
Because it is a review tool, an entry only helps if it is concrete enough to review later. Write what a second person would need to understand the trade: the setup you were waiting for, the trigger, the exit plan and the reason for any deviation. Vague notes like 'felt right' cannot be reviewed and quietly turn the journal into hindsight commentary.
What to log in each entry
Keep the fields few and fixed so entries are fast and comparable. The point is consistency, not length: a short entry you actually write every session beats a detailed one you abandon after a week.
- The written setup and its invalidation point, decided before entry.
- What you actually did: entry, size, exit, or stand-aside.
- Rule adherence: followed, partly followed, or broken — and why.
- The reason for the decision, in one sentence, in your own words.
- The simulated result, logged last and kept separate from the adherence score.
- One observable correction to carry into the next session.
A simple review cadence
A journal only works if it is reviewed. Build two short review loops — one immediately after each session, one across a batch of sessions — so single results do not drive changes but real patterns do.
1. Log immediately after the session
Write the entry while the decisions are fresh, before you know how you feel about the result. Save a chart or order record so the entry rests on evidence, not memory.
2. Score adherence, not profit
Mark each decision followed, partly followed or broken. A winning but broken trade is a red flag, not a success; a disciplined loss is a good rep.
3. Review a batch weekly
Once you have several sessions, read them together and look for the repeated behaviour — not the one big win or loss. Patterns across entries are what you can actually act on.
4. Change one thing
Pick a single observable correction for the next batch, such as waiting for a bar to close or cutting the attempt limit. Do not rewrite the whole plan after one entry.
Score the process, not the P&L
The discipline that makes a journal valuable is refusing to let the result grade the decision. Judge whether the decision matched your written rule under the information you had at the time; log the simulated profit or loss separately as data, not as the verdict.
| Entry field | What it records | What it must not become |
|---|---|---|
| Adherence | Did the decision match the written rule? | A rating of whether the trade made money. |
| Reason | Why you acted, in your own words, at the time. | A justification written after seeing the result. |
| Result | The simulated P&L, logged as one data point. | The score that decides if the decision was good. |
What a journal cannot prove
A journal documents your process; it does not establish future profitability or reproduce live conditions. A clean record of disciplined simulated sessions is evidence that you followed a routine in that environment — not a performance claim. Real fills, costs, liquidity and your response with capital at risk can all differ.[4]
The CFTC's guidance on hypothetical or simulated performance stresses its inherent limitations. Tradrill offers no performance promises or trading signals; keep the journal's claim narrow — it can tell you whether you followed a process, not what a real-money outcome will be.[4]
Trading journal entry checklist
Fill this in every practice session.
- Setup and invalidation written before entry.
- What you actually did recorded plainly.
- Adherence marked followed / partly / broken, with the reason.
- Simulated result logged last, kept separate from adherence.
- One observable correction chosen for next session.
Frequently asked questions
- What should I write in a trading journal?
- Record the written setup and invalidation, what you actually did, whether you followed the rule and why, and — logged separately and last — the simulated result. Add one correction for next time. Keep the fields fixed so entries are fast and comparable across sessions.
- Should I journal profit and loss?
- Log it, but as one data point, not the verdict. A profit can come from a broken rule and a loss from a disciplined one, so score rule-following first and keep the result separate. Judging decisions by outcome teaches the wrong lesson.
- How often should I review the journal?
- Twice: a short review immediately after each session while it is fresh, and a batch review across several sessions to spot repeated behaviour. Change one observable thing per batch rather than reacting to a single entry.
Sources & further reading
Regulatory material is cited for trading risk, cost and simulated-performance limits. Accessed 20 July 2026.
Record the decision, review the pattern
Journal every practice session: the rule, what you did, whether they matched, and one correction — with the result kept separate. Tradrill is built for this loop, letting you rehearse on virtual funds and review your rule-following over time. It provides no trading signals and does not trade for you.
For trading-practice education only. Tradrill provides no trading signals, automated trading or investment advice. Simulated results have limitations and do not represent or promise future or live performance.