Official NHA Assessment

Race 4: GLOBAL TEAM HORSE RACING QUALIFIED MAIDEN PLATE (Maidens with 3 runs or more & Nett Rating of 68 or less)

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Line Horse
Unique Power
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    Unique Power         3    60.0    1    0.00     8.0   65    65           65    +0
2    His Master's Voice   2    57.0    2    0.05     0.0   55    75           75    +20
3    Ice And Fire         3    60.0    3    3.55     8.0   52    66           66    +14
4    Top Sail             2    57.0    4    3.80     0.0   73    76           76    +3
5    Geronimo             4    60.0    5    4.30     5.0   64    71           71    +7
6    Not Your Call        3    60.0    6    4.50     8.0   52    65           65    +13
7    Sir Theodore         3    60.0    7    6.90     8.0   56    65           65    +9
8    Royal Venus          2    51.5    8    10.40    0.0   57    64           64    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Unique Power Line 65 63 65 -2 8.0
2 His Master's Voice 55 69 75 -6 0.0 -
3 Ice And Fire 52 60 66 -6 8.0 -
4 Top Sail 73 85 76 +9 0.0 -
5 Geronimo 64 50 71 -21 5.0 -
6 Not Your Call 52 52 65 -13 8.0 -
7 Sir Theodore 56 53 65 -12 8.0 -
8 Royal Venus 57 50 64 -14 0.0 -
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