Official NHA Assessment

Race 6: ELIJAH KAMBULA MR 77 HANDICAP (Open)

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Line Horse
Twice Golden
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
8 / 12
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    Rock Fall            2    52.0    1    0.00     0.0   73    60           73    +0
2    Twice Golden         5    53.5    2    0.70     0.0   69    69           69    +0
3    Tom Bombadil         5    52.5    3    1.10     0.0   60    66           66    +6
4    Space News           4    49.5    4    1.15     4.5   55    51           51    -4
5    Hey Bill             4    53.0    5    1.25     4.5   66    58           58    -8
6    Riccardo             7    52.5    6    1.65     0.0   62    66           66    +4
7    Chelsea Flower       6    57.0    7    2.95     0.0   74    73           73    -1
8    Proud Warrior        5    52.0    8    10.15    0.0   53    60           60    +7
9    Sea Goddess          3    52.0    9    13.25    8.0   73    44           63    -10
99   Blue Planet          5    55.5    99   0.00     0.0   -     67           67    +0
99   Great Affair         7    61.0    99   0.00     0.0   -     78           78    +0
99   Cyber Time           3    58.5    99   0.00     8.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rock Fall 73 80 73 +7 0.0 -
2 Twice Golden Line 69 84 69 +15 0.0
3 Tom Bombadil 60 56 66 -10 0.0 -
4 Space News 55 52 51 +1 4.5 -
5 Hey Bill 66 71 58 +13 4.5 -
6 Riccardo 62 68 66 +2 0.0 -
7 Chelsea Flower 74 77 73 +4 0.0 -
8 Proud Warrior 53 51 60 -9 0.0 -
9 Sea Goddess 73 80 63 +17 8.0 -
99 Blue Planet - 68 67 +1 0.0 -
99 Great Affair - 63 78 -15 0.0 -
99 Cyber Time - 81 57 +24 8.0 -
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