Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Quick Run
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Quick Run            4    57.5    1    0.00     2.5   58    58           58    +0
2    Great Times          3    60.0    2    0.30     2.0   55    64           64    +9
3    The Gliding Fish     6    60.0    3    4.30     0.0   -     68           68    +68
4    Smelting             7    57.5    4    4.70     0.0   53    63           63    +10
5    Kwela                4    60.0    5    6.45     2.5   35    63           63    +28
6    Tara Iti             4    60.0    6    8.70     2.5   43    63           63    +20
99   Forever Free         4    60.0    99   0.00     2.5   -     63           63    +0
99   Spanish Spirit       3    57.5    99   0.00     2.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quick Run Line 58 61 58 +3 2.5
2 Great Times 55 54 64 -10 2.0 -
3 The Gliding Fish - 68 68 ✓ Match 0.0 -
4 Smelting 53 52 63 -11 0.0 -
5 Kwela 35 43 63 -20 2.5 -
6 Tara Iti 43 52 63 -11 2.5 -
99 Forever Free - 56 63 -7 2.5 -
99 Spanish Spirit - - 59 -59 2.0 -
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