Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MR 84 HANDICAP (Open)

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Line Horse
Siberian Steel
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 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    Kotinos              3    56.0    1    0.00     6.0   76    76           76    +0
2    Second Breath        2    61.5    2    0.20     4.0   87    91           91    +4
3    Siberian Steel       3    58.0    3    1.25     6.0   80    80           80    +0
4    Grape Shot           2    54.5    4    3.25     4.0   81    77           77    -4
5    Twice The Storm      2    56.5    5    4.50     4.0   77    81           81    +4
6    Dreamland            4    59.0    6    14.50    7.0   90    80           80    -10
7    Back To Basics       3    56.5    7    15.00    6.0   77    77           77    +0
8    Esquevelle           3    63.5    8    19.00    6.0   91    91           91    +0
9    Meteoric             3    57.5    9    23.00    6.0   79    79           79    +0
99   Kalahari Blue        2    55.5    99   0.00     4.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kotinos 76 59 76 -17 6.0 -
2 Second Breath 87 79 91 -12 4.0 -
3 Siberian Steel Line 80 80 80 ✓ Match 6.0
4 Grape Shot 81 69 77 -8 4.0 -
5 Twice The Storm 77 73 81 -8 4.0 -
6 Dreamland 90 103 80 +23 7.0 -
7 Back To Basics 77 72 77 -5 6.0 -
8 Esquevelle 91 86 91 -5 6.0 -
9 Meteoric 79 76 79 -3 6.0 -
99 Kalahari Blue - 75 79 -4 4.0 -
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