Official NHA Assessment

Race 6: RACE COAST INCENTIVES POWERED BY Hollywoodbets CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Hunga Tonga
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Reet Petite          3    55.0    1    0.00     7.0   86    69           69    -17
2    Hunga Tonga          3    59.0    2    2.25     7.0   80    80           80    +0
3    Hampstead Heath      4    58.5    3    2.65     4.0   79    84           84    +5
4    Kleinzee             3    59.0    4    3.65     7.0   80    78           78    -2
5    Supreme Fate         3    58.0    5    3.70     7.0   78    76           76    -2
6    Educator             2    58.5    6    5.70     0.0   93    90           90    -3
7    Viva La Vida         2    58.0    7    6.95     0.0   92    89           89    -3
8    Spirit Of Levana     3    63.5    8    7.70     7.0   89    86           86    -3
99   Strawberry Thief     3    63.5    99   0.00     7.0   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Reet Petite 86 114 69 +45 7.0 -
2 Hunga Tonga Line 80 78 80 -2 7.0
3 Hampstead Heath 79 75 84 -9 4.0 -
4 Kleinzee 80 77 78 -1 7.0 -
5 Supreme Fate 78 78 76 +2 7.0 -
6 Educator 93 96 90 +6 0.0 -
7 Viva La Vida 92 92 89 +3 0.0 -
8 Spirit Of Levana 89 73 86 -13 7.0 -
99 Strawberry Thief - 89 86 +3 7.0 -
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