Official NHA Assessment

Race 6: www.newturf.co.za MR 96 HANDICAP (Open)

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Line Horse
Ralph The Rascal
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
7 / 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    Silver Falcon        6    56.0    1    0.00     0.0   90    85           90    +0
2    Desolate Road        6    51.0    2    0.30     0.0   86    80           80    -6
3    Ralph The Rascal     8    53.0    3    1.80     0.0   82    82           82    +0
4    Sikhulu              3    55.0    4    1.95     0.5   88    85           85    -3
5    Artic Tune           4    53.0    5    2.25     0.5   82    81           81    -1
6    Tread Swiftly        4    58.0    6    2.55     0.5   100   90           90    -10
7    Spirit Of My Fate    5    52.5    7    3.85     0.0   81    79           79    -2
8    Top Wesselton        3    52.0    8    4.55     0.5   81    76           76    -5
9    Purple Nkanyezi      5    58.0    9    9.45     0.0   92    89           89    -3
10   Dockofthebay         3    55.5    10   26.05    0.5   89    83           83    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silver Falcon 90 106 90 +16 0.0 -
2 Desolate Road 86 82 80 +2 0.0 -
3 Ralph The Rascal Line 82 73 82 -9 0.0
4 Sikhulu 88 94 85 +9 0.5 -
5 Artic Tune 82 81 81 ✓ Match 0.5 -
6 Tread Swiftly 100 90 90 ✓ Match 0.5 -
7 Spirit Of My Fate 81 70 79 -9 0.0 -
8 Top Wesselton 81 68 76 -8 0.5 -
9 Purple Nkanyezi 92 80 89 -9 0.0 -
10 Dockofthebay 89 71 83 -12 0.5 -
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