Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 MR 68 HANDICAP (Open)

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Line Horse
Coromandel
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
7 / 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    Viva De Janeiro      5    60.0    1    0.00     0.0   68    66           68    +0
2    Coromandel           4    55.5    2    1.25     1.0   59    59           59    +0
3    Red Knot             4    60.5    3    1.75     1.0   74    68           68    -6
4    Summerland           5    56.0    4    2.25     0.0   60    61           61    +1
5    Gilda Gray           3    57.5    5    3.50     2.5   63    57           57    -6
6    His Master's Voice   2    60.5    6    3.70     0.0   69    68           68    -1
7    Full Go              6    53.5    7    4.20     0.0   55    54           54    -1
8    Kakiebos             3    60.0    8    4.70     2.5   73    61           63    -10
9    Fiery Cliffs         3    57.5    9    5.20     2.5   63    56           56    -7
10   Ideal Future         6    55.5    10   5.45     0.0   67    57           57    -10
11   Guy Alexander        3    56.5    11   8.70     2.5   61    54           54    -7
99   Fifth Of July        5    59.0    99   0.00     0.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Viva De Janeiro 68 50 68 -18 0.0 -
2 Coromandel Line 59 59 59 ✓ Match 1.0
3 Red Knot 74 62 68 -6 1.0 -
4 Summerland 60 45 61 -16 0.0 -
5 Gilda Gray 63 64 57 +7 2.5 -
6 His Master's Voice 69 69 68 +1 0.0 -
7 Full Go 55 59 54 +5 0.0 -
8 Kakiebos 73 75 63 +12 2.5 -
9 Fiery Cliffs 63 60 56 +4 2.5 -
10 Ideal Future 67 72 57 +15 0.0 -
11 Guy Alexander 61 72 54 +18 2.5 -
99 Fifth Of July - 63 64 -1 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