Official NHA Assessment

Race 8: NEXT TURFFONTEIN MEETING SATURDAY 16 MARCH MR 72 HANDICAP (Open)

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Line Horse
Viva De Janeiro
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Libeccio             5    58.0    1    0.00     0.0   68    65           68    +0
2    Eiger Sanction       3    59.5    2    1.30     3.0   77    65           67    -10
3    Viva De Janeiro      5    54.0    3    1.80     0.0   60    60           60    +0
4    Run For Cover        5    60.0    4    4.05     0.0   72    70           70    -2
5    Light Of Day         5    58.5    5    4.30     0.0   69    66           66    -3
6    Written In Stone     9    52.0    6    5.80     0.0   56    53           53    -3
7    Carnelo              6    55.5    7    8.30     0.0   63    60           60    -3
8    Masters Queen        3    54.0    8    8.40     3.0   60    51           51    -9
9    French Impact        2    56.5    9    9.10     0.0   79    62           69    -10
10   Green Sceptre        2    54.5    10   9.50     0.0   60    58           58    -2
11   Skyfull              2    52.0    11   10.25    0.0   54    53           53    -1
12   Guy Alexander        3    53.5    12   14.00    3.0   67    50           57    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Libeccio 68 62 68 -6 0.0 -
2 Eiger Sanction 77 79 67 +12 3.0 -
3 Viva De Janeiro Line 60 50 60 -10 0.0
4 Run For Cover 72 70 70 ✓ Match 0.0 -
5 Light Of Day 69 61 66 -5 0.0 -
6 Written In Stone 56 67 53 +14 0.0 -
7 Carnelo 63 75 60 +15 0.0 -
8 Masters Queen 60 56 51 +5 3.0 -
9 French Impact 79 72 69 +3 0.0 -
10 Green Sceptre 60 50 58 -8 0.0 -
11 Skyfull 54 54 53 +1 0.0 -
12 Guy Alexander 67 72 57 +15 3.0 -
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