Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING THURSDAY 4 JUNE MR 80 HANDICAP (Open)

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Line Horse
Umzingeli Wenyathi
Reference for assessment
Exact Matches
4 / 11
Calculated = Official
Close Matches
8 / 11
Within 2 points
Significant Diffs
0 / 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    Umzingeli Wenyathi   2    63.5    1    0.00     1.5   90    90           90    +0
2    Twentytwentyvision   2    59.5    2    0.20     1.5   79    82           82    +3
3    Lonely As A Cloud    3    55.5    3    0.50     2.5   71    72           72    +1
4    Slender Silhouette   2    57.0    4    2.00     1.5   77    77           77    +0
5    Rock Of Bismantova   3    61.5    5    5.20     2.5   83    84           84    +1
6    Hemisphere           3    61.5    6    5.45     2.5   83    84           84    +1
7    His Lordship         3    62.0    7    5.65     2.5   84    85           85    +1
8    Bumps Last Grind     2    57.5    8    5.75     1.5   75    78           78    +3
9    Fifty Ways           2    57.5    9    8.35     1.5   78    78           78    +0
10   Saketini             2    59.5    10   13.35    1.5   82    82           82    +0
99   Cold Shine           2    57.0    99   0.00     1.5   -     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 Umzingeli Wenyathi Line 90 90 90 ✓ Match 1.5
2 Twentytwentyvision 79 79 82 -3 1.5 -
3 Lonely As A Cloud 71 71 72 -1 2.5 -
4 Slender Silhouette 77 77 77 ✓ Match 1.5 -
5 Rock Of Bismantova 83 83 84 -1 2.5 -
6 Hemisphere 83 83 84 -1 2.5 -
7 His Lordship 84 84 85 -1 2.5 -
8 Bumps Last Grind 75 75 78 -3 1.5 -
9 Fifty Ways 78 78 78 ✓ Match 1.5 -
10 Saketini 82 82 82 ✓ Match 1.5 -
99 Cold Shine - 74 77 -3 1.5 -
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