Official NHA Assessment

Race 3: PLAY SOCCER 6, 10 AND 13 MR 80 HANDICAP (Open)

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Line Horse
Chieftain
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 9
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    John Wick            2    60.5    1    0.00     5.5   81    98           81    +0
2    Chieftain            3    61.0    2    0.75     8.5   93    93           93    +0
3    Nkandla Gold         4    62.0    3    1.25     10.0  84    92           92    +8
4    Pacific              4    53.0    4    2.00     10.0  66    74           74    +8
5    Longsword            2    62.0    5    2.25     5.5   84    101          101   +17
6    Bregardt             4    54.0    6    5.00     10.0  68    76           76    +8
7    Axel Collins         5    52.5    7    7.75     0.0   65    93           93    +28
8    Secret Chord         4    58.5    8    10.50    10.0  77    85           85    +8
99   The Navy Lark        4    57.0    99   0.00     10.0  -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 John Wick 81 82 81 +1 5.5 -
2 Chieftain Line 93 106 93 +13 8.5
3 Nkandla Gold 84 63 92 -29 10.0 -
4 Pacific 66 50 74 -24 10.0 -
5 Longsword 84 72 101 -29 5.5 -
6 Bregardt 68 52 76 -24 10.0 -
7 Axel Collins 65 55 93 -38 0.0 -
8 Secret Chord 77 92 85 +7 10.0 -
99 The Navy Lark - 74 82 -8 10.0 -
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