Official NHA Assessment

Race 2: SHERRIFS STAR CONDITIONAL NOVICE (For One Time Winners with a nett rating of 92 & below)

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Line Horse
Canford Ice
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    Sovereign State      3    60.0    1    0.00     9.0   92    73           73    -19
2    Purpleninjaturtle    4    58.0    2    0.20     7.0   85    73           75    -10
3    Canford Ice          2    59.0    3    3.60     0.0   90    90           90    +0
4    Princess Ozma        2    57.0    4    4.40     0.0   72    85           85    +13
5    Godspeed             2    56.0    5    8.00     0.0   81    83           83    +2
99   Safe Space           5    58.0    99   0.00     0.0   -     87           87    +0
99   Mexican Pete         3    59.0    99   0.00     9.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sovereign State 92 96 73 +23 9.0 -
2 Purpleninjaturtle 85 78 75 +3 7.0 -
3 Canford Ice Line 90 82 90 -8 0.0
4 Princess Ozma 72 66 85 -19 0.0 -
5 Godspeed 81 60 83 -23 0.0 -
99 Safe Space - 83 87 -4 0.0 -
99 Mexican Pete - 84 71 +13 9.0 -
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