Official NHA Assessment

Race 6: PORT ELIZABETH GOLD CUP (Open (Non-Black Type))

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Line Horse
Bournemouth
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
6 / 11
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    Home Reef            3    50.0    1    0.00     3.5   75    77           77    +2
2    Bournemouth          5    62.0    2    1.50     0.0   113   113          113   +0
3    Alado's Pride        7    50.0    3    9.00     0.0   74    84           84    +10
4    George Handel        4    50.0    4    9.50     1.5   71    81           81    +10
5    Juan Carlos          7    55.0    5    9.60     0.0   89    94           94    +5
6    Zatara Magic         5    62.0    6    11.10    0.0   108   108          108   +0
7    Only A Poet          3    50.0    7    12.35    3.5   63    77           77    +14
8    Heemstede            3    54.5    8    20.85    3.5   87    86           86    -1
9    Repetition           3    50.0    9    21.60    3.5   73    77           77    +4
10   Heart Stealer        5    54.0    10   39.85    0.0   81    92           92    +11
11   Chere For Me         5    50.0    11   99.99    0.0   74    84           84    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Home Reef 75 87 77 +10 3.5 -
2 Bournemouth Line 113 110 113 -3 0.0
3 Alado's Pride 74 73 84 -11 0.0 -
4 George Handel 71 85 81 +4 1.5 -
5 Juan Carlos 89 93 94 -1 0.0 -
6 Zatara Magic 108 114 108 +6 0.0 -
7 Only A Poet 63 59 77 -18 3.5 -
8 Heemstede 87 89 86 +3 3.5 -
9 Repetition 73 74 77 -3 3.5 -
10 Heart Stealer 81 80 92 -12 0.0 -
11 Chere For Me 74 70 84 -14 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