Why it is important to capture the results of each session

Players overestimate memory and underestimate records. Inconspicuous "little things" - a change of bet, a long L-series, a rare bonus - distort the memories of the session. The only way to separate risk from superstition is to log: capture the same set of metrics to compare sessions, slots and strategies on equal terms.

1) What does the fixation of each session give

Anti-illusion. Statistics removes "it seems to me." You can see where is the variance and where is the system shift.

Comparability. The same set of fields ⇒ honest slot/strategy comparisons.

Limit control. By drawdowns and ≥×10 intervals, you calibrate stop losses/teik profits.

Early signals. Sliding windows and log checklists catch degradation to a loss.

Replication. You can repeat a successful configuration (bet, duration, portfolio) and check out-of-sample.

2) Standardized set of fields (minimum)

"Context" block

Start date and time

RTP Slot/Provider/Version (if known)
Rate strategy (flat/progression/bank share)
Session plan (N spins or exit rules)
Base rate and range (if changed)

"Results" block

Spin actually (N_fact)

Bet Amount/Total Pay/Actual RTP Selection
HF (proportion of spins with win> 0)
The chance of a significant event (≥×10) in the sample
Pre- ≥×10 intervals: median, 75th percentile
Max drawdown (depth, duration)
Session total (% to bank/in rates)
Number of bonuses, bonus purchases (if any) and their net total
Game time (min)

Quality Control Unit

Are the limits met (yes/no; which worked)

Comments (communication failures, change of bid, missions/cashback)

3) "Session Passport" - template for insertion into the report

Slot/Provider:...

Strategy/Bet: .../...

Plan/fact of spins: .../...

Bottom line: ... rates (...%)

RTP samples: ...%; HF: …%

≥×10 intervals: median... spins; 75th percentile...

Max DD: … rates (duration... spin)

Bonuses (natural/purchase): .../...; net total... rates

Worked limits: stop loss/teik profit/time out -...

Notes:...

4) Basic formulas (at fixed rate b)

RTP sample,% = (payout Σ/rate Σ) × 100

HF = winning backs/N

≥×10 intervals: measure the distance (in the backs) between the backs with the win≥10b; take the median and 75th percentile
Max drawdown: maximum (historic bank peak − current bank)

💡 If the rate has changed, count in the rates: convert each win to a multiplier (X_i=win_i/b_i) and aggregate by X.

5) How to organize a journal (practice)

Tool: Excel/Google Sheets or any database. Use table + summary reports.

One line = one session, and store the "detailed log" of spins separately if necessary (for calculating intervals and series).

Named fields and data checks: drop-down lists for policies, slots, mark "RTP known."

Versioning: The "rule version" field (v1, v2...) so as not to mix different strategies.

Dashboards: moving metrics for the last 20-30 sessions: EV, Q50 total, Q90 DD, HF, median ≥×10 intervals.

6) With what metrics the magazine "revives" management

Limits. If drawdown depth Q90 = 250 bets, place stop loss ≤ 250-300.

Duration. If the median ≥×10 interval is 140 spins, schedule the session for 2-3 spins.

Portfolio. Compare slots by HF, drawdowns and intervals: "live" for short sessions vs "rare-large" for long ones.

Strategies. On the same slots, compare the versions of the rules for the median total and the DD Q90; avoid "one record day" conclusions.

7) Detailed spin log (when needed)

If you are testing the mechanics/strategy deeply - add the "Backs" sheet:

Spin no., bet (b_i), payout, flags: win> 0, win≥×10, bonus (yes/no), bonus purchase (yes/no)
Counter "without ≥×10" for interval calculation
Cohort (slot/strategy/version) for subsequent summary

This will allow you to build histograms of multipliers, distribution of intervals, length of L/W-series.

8) Frequent mistakes and how to avoid them

You change the rules on the fly. Fix the entire strategy for the session; otherwise the data is not comparable.

Mix RTP versions/slots in one comparison - segment.

See only the average. Add quantiles and drawdowns - the player lives not in anticipation, but in "bad days."

Short samples. Draw conclusions on batches (for example, 30 + sessions) and show sliding windows.

Ignore the external economy. Consider cashback/missions in separate fields (add to the total).

9) Mini Data Quality Checklist (QA)

Fields are filled without gaps (slot, strategy, bet, total, N_fact).

There are no "magic" discrepancies in the amounts: bet Σ = N_fact×b (or Σb_i).

The "bonus/purchase" and "limits" labels are marked.

A comment on abnormal factors (lag, restart of the game) has been made.

Once a week - reconciliation of the dashboard with the original lines (selectively).

10) How to turn a journal into solutions

1. Weekly report: for the last 20-30 sessions - EV, total Q50/Q90, DD Q90, HF, median ≥×10 intervals.

2. Gardrails: if you Q90 DD> of the base corridor by X% and EV below the base by Y percentage points, we reduce the rate/pause.

3. A/B comparisons: A/B strategies on one portfolio - compare medians, bootstrap CI differences.

4. Archiving/escalation: strategy without improvements according to the criteria of 4 weeks - to the archive; new version - only after a demo retest.

11) Ready "short" wording for session cards

The goal: to keep Q90 DD ≤ 250 bets, a chance of ≥0% ≥ 40% per 1000 spins.

Bottom line: − 4. 8% (RTP 95. 2%), HF 28%, median ≥×10 interval - 160; Max DD 230 bets.

Verdict: Hallway; Do not change limits.

Bottom line: − 9. 7%, HF 22%, median ≥×10 210; Max DD 320.

Verdict: exceeded Q90 DD; reduce the base rate by 20%, repeat the test.

Bottom line: by recording the results of each session in a single template, you turn random impressions into manageable metrics. The magazine gives comparability, early signals, fair limits and protection from cognitive traps. This means less impulsive errors, more control over the risk and quality of decisions over a long distance.