Official NHA Assessment

Race 7: DURBAN JULY VIEWING PARTY 5 JULY NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Beynac
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 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    Last Car To Pass     3    57.0    1    0.00     1.0   83    78           78    -5
2    Beynac               2    58.5    2    2.25     0.0   86    86           86    +0
3    Enflame              3    55.0    3    4.15     1.0   79    75           75    -4
4    Oklahoma Twister     4    52.0    4    4.90     0.5   60    69           69    +9
5    Key News             2    60.5    5    5.65     0.0   90    87           87    -3
6    Sky Pillar Rock      3    54.0    6    7.40     1.0   77    72           72    -5
7    Kissing Machine      3    56.0    7    7.80     1.0   79    76           76    -3
8    Robert Browning      3    52.0    8    8.55     1.0   73    68           68    -5
9    Crepuscolo           4    52.0    9    8.80     0.5   63    69           69    +6
10   Guerilla Warfare     3    52.5    10   10.40    1.0   74    69           69    -5
11   Ichacha              3    52.5    11   10.45    1.0   79    69           69    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Last Car To Pass 83 86 78 +8 1.0 -
2 Beynac Line 86 90 86 +4 0.0
3 Enflame 79 98 75 +23 1.0 -
4 Oklahoma Twister 60 71 69 +2 0.5 -
5 Key News 90 81 87 -6 0.0 -
6 Sky Pillar Rock 77 81 72 +9 1.0 -
7 Kissing Machine 79 88 76 +12 1.0 -
8 Robert Browning 73 87 68 +19 1.0 -
9 Crepuscolo 63 58 69 -11 0.5 -
10 Guerilla Warfare 74 75 69 +6 1.0 -
11 Ichacha 79 74 69 +5 1.0 -
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