Official NHA Assessment

Race 6: TRACK & BALL GAMING MR 66 HANDICAP (Open)

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Line Horse
Brave Voyager
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 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    Corsican             2    58.5    1    0.00     0.0   66    63           66    +0
2    Time Taker           4    61.5    2    0.50     0.5   69    73           73    +4
3    Brave Voyager        3    54.0    3    1.70     1.5   54    54           54    +0
4    Final Destiny        4    52.0    4    1.95     0.5   50    52           52    +2
5    Fever                5    55.5    5    2.15     0.0   56    60           60    +4
6    Ravens Sword         3    60.0    6    2.25     1.5   66    66           66    +0
7    Rodriguez            6    57.0    7    3.05     0.0   68    62           62    -6
8    Arden Park           3    54.5    8    3.20     1.5   55    54           54    -1
99   Thunder Masala       3    59.5    99   0.00     1.5   -     62           62    +0
99   Tom's Act            3    59.0    99   0.00     1.5   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Corsican 66 61 66 -5 0.0 -
2 Time Taker 69 55 73 -18 0.5 -
3 Brave Voyager Line 54 51 54 -3 1.5
4 Final Destiny 50 50 52 -2 0.5 -
5 Fever 56 52 60 -8 0.0 -
6 Ravens Sword 66 53 66 -13 1.5 -
7 Rodriguez 68 69 62 +7 0.0 -
8 Arden Park 55 53 54 -1 1.5 -
99 Thunder Masala - 50 62 -12 1.5 -
99 Tom's Act - 64 61 +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