Official NHA Assessment

Race 5: WWW.SOCCER6.CO.ZA PINNACLE STAKES (Open to all horses)

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Line Horse
Grazinginthegrass
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
7 / 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    62.0    1    0.00     1.5   111   111          111   +0
2    Runaway Song         6    61.0    2    0.10     0.0   105   112          112   +7
3    Brenden James        6    58.0    3    1.85     0.0   93    111          111   +18
4    Global Ally          6    59.5    4    2.60     0.0   100   113          113   +13
5    Official Secret      6    56.0    5    3.60     0.0   97    105          105   +8
6    Jaeger Moon          7    58.0    6    4.85     0.0   94    106          106   +12
7    Downing Seven        5    53.5    7    6.10     0.0   77    97           97    +20
8    Castletown           3    58.0    8    6.35     3.5   93    99           99    +6
9    Indy View            2    52.0    9    6.40     0.0   77    94           94    +17
99   Say Yes              2    50.5    99   0.00     0.0   -     91           91    +0
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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 1.5
2 Runaway Song 105 98 112 -14 0.0 -
3 Brenden James 93 98 111 -13 0.0 -
4 Global Ally 100 97 113 -16 0.0 -
5 Official Secret 97 103 105 -2 0.0 -
6 Jaeger Moon 94 97 106 -9 0.0 -
7 Downing Seven 77 69 97 -28 0.0 -
8 Castletown 93 90 99 -9 3.5 -
9 Indy View 77 76 94 -18 0.0 -
99 Say Yes - 90 91 -1 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