Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Quick Run
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
2 / 10
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    Special Variety      3    60.0    1    0.00     4.5   -     64           6     +6
2    Grecia               3    60.0    2    0.50     4.5   -     64           64    +64
3    Quick Run            4    60.0    3    0.75     5.0   63    63           63    +0
4    Mercurial Jet        3    60.0    4    2.00     4.5   -     64           64    +64
5    Stormy Lass          3    60.0    5    2.25     4.5   62    64           64    +2
6    Lady Osier           3    60.0    6    3.00     4.5   68    64           64    -4
7    Love Bite            3    60.0    7    5.50     4.5   64    64           64    +0
8    Rockingthetimeaway   3    57.5    8    8.75     4.5   55    59           59    +4
99   Confetti Shower      3    60.0    99   0.00     4.5   -     64           64    +0
99   Western View         3    60.0    99   0.00     4.5   -     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 Special Variety - 74 6 +68 4.5 -
2 Grecia - 53 64 -11 4.5 -
3 Quick Run Line 63 61 63 -2 5.0
4 Mercurial Jet - 59 64 -5 4.5 -
5 Stormy Lass 62 61 64 -3 4.5 -
6 Lady Osier 68 66 64 +2 4.5 -
7 Love Bite 64 65 64 +1 4.5 -
8 Rockingthetimeaway 55 62 59 +3 4.5 -
99 Confetti Shower - 63 64 -1 4.5 -
99 Western View - 67 64 +3 4.5 -
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