Official NHA Assessment

Race 5: 4RACING.TV PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Phedra
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
5 / 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    Stolen Kiss          3    55.0    1    0.00     5.0   80    87           86    +6
2    Phedra               3    61.0    2    0.50     5.0   99    99           99    +0
3    Miss Nibbles         3    59.5    3    1.00     5.0   95    96           96    +1
4    Red Berry            4    58.0    4    2.25     6.0   87    91           91    +4
5    Franca               3    62.0    5    2.30     5.0   103   101          101   -2
6    Civil Rights         3    58.0    6    2.80     5.0   88    93           93    +5
7    Sound Check          3    58.0    7    4.30     5.0   87    93           93    +6
8    Rapid Fire           4    56.5    8    6.55     6.0   85    88           88    +3
9    Sweet The Sound      3    53.5    9    7.80     5.0   75    84           84    +9
10   Gillian Anne         4    59.5    10   8.30     6.0   92    94           94    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stolen Kiss 80 79 86 -7 5.0 -
2 Phedra Line 99 103 99 +4 5.0
3 Miss Nibbles 95 95 96 -1 5.0 -
4 Red Berry 87 95 91 +4 6.0 -
5 Franca 103 90 101 -11 5.0 -
6 Civil Rights 88 88 93 -5 5.0 -
7 Sound Check 87 79 93 -14 5.0 -
8 Rapid Fire 85 72 88 -16 6.0 -
9 Sweet The Sound 75 60 84 -24 5.0 -
10 Gillian Anne 92 90 94 -4 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