Official NHA Assessment

Race 6: BETWAY INSUREBET FRIENDLY CITY STAKES (Open (Non-Black Type))

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Line Horse
Grazinginthegrass
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
6 / 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    Grazinginthegrass    4    60.0    1    0.00     6.0   111   111          111   +0
2    Hoedspruit           4    60.0    2    0.75     6.0   112   115          115   +3
3    Quasimodo            2    55.5    3    1.75     0.0   94    117          117   +23
4    Perfection           3    58.5    4    3.00     9.5   103   103          103   +0
5    Peace In Our World   6    55.5    5    3.25     0.0   91    116          116   +25
6    Bush Tracker         6    60.0    6    4.00     0.0   108   124          124   +16
7    Warrior              4    60.0    7    4.50     6.0   115   111          111   -4
8    Mount Anderson       8    60.0    8    6.00     0.0   107   123          123   +16
9    Blonde Act           3    57.0    9    6.25     9.5   96    98           98    +2
10   Find Me Unafraid     4    57.0    10   9.50     6.0   97    105          105   +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grazinginthegrass Line 111 111 111 ✓ Match 6.0
2 Hoedspruit 112 109 115 -6 6.0 -
3 Quasimodo 94 89 117 -28 0.0 -
4 Perfection 103 103 103 ✓ Match 9.5 -
5 Peace In Our World 91 89 116 -27 0.0 -
6 Bush Tracker 108 100 124 -24 0.0 -
7 Warrior 115 113 111 +2 6.0 -
8 Mount Anderson 107 102 123 -21 0.0 -
9 Blonde Act 96 96 98 -2 9.5 -
10 Find Me Unafraid 97 85 105 -20 6.0 -
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