Official NHA Assessment

Race 4: OPEN A TAB ACCOUNT GET 10% BONUS MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Breeze Over
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Zeus                 3    60.0    1    0.00     11.5  94    71           71    -23
2    Breeze Over          5    52.0    2    2.50     0.0   82    82           82    +0
3    Opera Glass          4    51.0    3    2.75     9.0   87    61           77    -10
4    Afraad               8    52.0    4    7.75     0.0   79    78           78    -1
5    Spin Doctor          3    56.0    5    8.75     11.5  89    63           79    -10
6    Indian War Dance     3    50.0    6    11.75    11.5  58    51           51    -7
7    Raratonga Rose       2    51.5    7    25.75    0.0   89    77           79    -10
8    Super Secret         2    47.5    8    99.99    0.0   50    69           69    +19
99   Out Of Your League   5    50.0    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zeus 94 117 71 +46 11.5 -
2 Breeze Over Line 82 99 82 +17 0.0
3 Opera Glass 87 81 77 +4 9.0 -
4 Afraad 79 79 78 +1 0.0 -
5 Spin Doctor 89 90 79 +11 11.5 -
6 Indian War Dance 58 58 51 +7 11.5 -
7 Raratonga Rose 89 80 79 +1 0.0 -
8 Super Secret 50 50 69 -19 0.0 -
99 Out Of Your League - 77 74 +3 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