Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 23 AUGUST MR 76 HANDICAP (Open)

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Line Horse
Silly Fella
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
9 / 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    Castle Corner        4    58.0    1    0.00     7.0   72    70           72    +0
2    Bloomington          3    58.5    2    1.10     9.0   74    71           71    -3
3    Coming In Hot        3    58.0    3    2.50     9.0   73    68           68    -5
4    Silly Fella          4    53.0    4    3.00     7.0   62    62           62    +0
5    Waqaas (AUS)         6    61.0    5    3.05     0.0   78    92           92    +14
6    Johnny Dogs          2    53.0    6    3.50     0.0   80    75           75    -5
7    Timbavati River      3    58.5    7    5.25     9.0   74    67           67    -7
8    Ashanti Sword        2    52.0    8    5.30     0.0   78    72           72    -6
9    In Cahoots           6    58.5    9    5.75     0.0   73    85           85    +12
10   Golden Tune          5    57.0    10   9.00     0.0   73    82           82    +9
11   Full House           3    56.5    11   15.00    9.0   78    63           68    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Castle Corner 72 72 72 ✓ Match 7.0 -
2 Bloomington 74 69 71 -2 9.0 -
3 Coming In Hot 73 76 68 +8 9.0 -
4 Silly Fella Line 62 51 62 -11 7.0
5 Waqaas (AUS) 78 56 92 -36 0.0 -
6 Johnny Dogs 80 67 75 -8 0.0 -
7 Timbavati River 74 79 67 +12 9.0 -
8 Ashanti Sword 78 52 72 -20 0.0 -
9 In Cahoots 73 54 85 -31 0.0 -
10 Golden Tune 73 68 82 -14 0.0 -
11 Full House 78 75 68 +7 9.0 -
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