Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 7 DECEMBER MR 86 HANDICAP (Open)

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Line Horse
Turbo Power
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Secret Chord         4    55.0    1    0.00     7.0   76    74           76    +0
2    Sea Shanty           4    53.0    2    1.75     7.0   72    70           70    -2
3    Turbo Power          3    58.5    3    3.05     6.0   83    83           83    +0
4    Coppola              4    56.5    4    3.45     7.0   79    77           77    -2
5    Pennsylvania         3    58.0    5    5.55     6.0   90    82           82    -8
6    Sea Wolf             3    57.0    6    6.05     6.0   88    80           80    -8
7    What A Tiger         5    60.5    7    8.30     0.0   87    99           99    +12
8    Bay Empire           2    56.5    8    17.55    4.0   87    83           83    -4
99   The Navy Lark        4    56.5    99   0.00     7.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Secret Chord 76 92 76 +16 7.0 -
2 Sea Shanty 72 71 70 +1 7.0 -
3 Turbo Power Line 83 83 83 ✓ Match 6.0
4 Coppola 79 83 77 +6 7.0 -
5 Pennsylvania 90 94 82 +12 6.0 -
6 Sea Wolf 88 87 80 +7 6.0 -
7 What A Tiger 87 71 99 -28 0.0 -
8 Bay Empire 87 62 83 -21 4.0 -
99 The Navy Lark - 74 77 -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