Official NHA Assessment

Race 1: GOLD CIRCLE RACING YOUTUBE CHANNEL QUALIFIED MAIDEN PLATE (Maidens with 3 runs or more & gross rating of 70 or less)

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Line Horse
Without Doubt
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
4 / 7
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Without Doubt        3    60.0    1    0.00     10.5  61    61           61    +0
2    Firu Star            3    60.0    2    0.20     10.5  61    61           61    +0
3    Shesakinda Magic     3    57.5    3    3.20     10.5  57    56           56    -1
4    Grand Finale         2    58.0    4    11.00    7.0   60    64           64    +4
5    One Man's Army       3    58.5    5    13.50    10.5  36    58           58    +22
6    Rare Flag            3    60.0    6    14.20    10.5  53    61           61    +8
99   Brainwave            2    58.0    99   0.00     7.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Without Doubt Line 61 63 61 +2 10.5
2 Firu Star 61 53 61 -8 10.5 -
3 Shesakinda Magic 57 58 56 +2 10.5 -
4 Grand Finale 60 62 64 -2 7.0 -
5 One Man's Army 36 32 58 -26 10.5 -
6 Rare Flag 53 54 61 -7 10.5 -
99 Brainwave - 58 64 -6 7.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points