Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING TUESDAY 28 FEBRUARY MR 68 HANDICAP (Open)

Line Horse
Razor Red
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Cherry Ano           5    59.5    1    0.00     0.0   74    73           74    +0
2    Razor Red            3    59.0    2    0.25     3.0   66    66           66    +0
3    My Ami Beach         6    60.0    3    0.35     0.0   68    79           79    +11
4    Pedro                6    55.5    4    0.45     0.0   59    70           70    +11
5    Chariot Master       4    57.0    5    0.95     2.0   62    68           68    +6
6    Flinders Range       3    58.0    6    1.20     3.0   64    68           68    +4
7    Tuk Tuk              3    58.0    7    1.25     3.0   64    68           68    +4
8    Silver Slippers      3    59.0    8    2.00     3.0   66    69           69    +3
9    Potente              2    54.0    9    2.25     0.0   63    65           65    +2
10   Tartan Dancer        5    52.0    10   2.75     0.0   51    60           60    +9
11   Knave Of Diamonds    3    55.0    11   4.00     3.0   58    59           59    +1
12   Absolu Noir          8    58.0    12   11.25    0.0   64    70           70    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cherry Ano 74 108 74 +34 0.0 -
2 Razor Red Line 66 63 66 -3 3.0
3 My Ami Beach 68 70 79 -9 0.0 -
4 Pedro 59 72 70 +2 0.0 -
5 Chariot Master 62 61 68 -7 2.0 -
6 Flinders Range 64 71 68 +3 3.0 -
7 Tuk Tuk 64 61 68 -7 3.0 -
8 Silver Slippers 66 63 69 -6 3.0 -
9 Potente 63 60 65 -5 0.0 -
10 Tartan Dancer 51 47 60 -13 0.0 -
11 Knave Of Diamonds 58 57 59 -2 3.0 -
12 Absolu Noir 64 50 70 -20 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