Official NHA Assessment

Race 5: 4RACING.TV MR 100 OPEN HANDICAP (3-year-olds) (3-year-olds)

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Line Horse
Banff
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Royal Force          3    56.0    1    0.00     4.0   92    82           92    +0
2    Kamensky             3    55.0    2    0.80     4.0   90    84           84    -6
3    Banff                2    56.5    3    3.20     0.0   93    93           93    +0
4    Tintamarre           3    52.0    4    3.95     4.0   84    75           75    -9
5    Peace Treaty         3    53.0    5    4.20     4.0   86    77           77    -9
6    Skittles Skies       3    54.0    6    6.80     4.0   88    78           78    -10
7    Lava Fire            3    49.5    7    7.80     4.0   81    69           71    -10
99   Miss Lia             3    57.5    99   0.00     4.0   -     85           85    +0
99   Potberrie            2    1.5     99   0.00     0.0   -     -19          -19   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Force 92 104 92 +12 4.0 -
2 Kamensky 90 105 84 +21 4.0 -
3 Banff Line 93 97 93 +4 0.0
4 Tintamarre 84 88 75 +13 4.0 -
5 Peace Treaty 86 69 77 -8 4.0 -
6 Skittles Skies 88 96 78 +18 4.0 -
7 Lava Fire 81 69 71 -2 4.0 -
99 Miss Lia - 95 85 +10 4.0 -
99 Potberrie - 105 -19 +124 0.0 -
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