Official NHA Assessment

Race 2: BET WITH TOTE OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares.)

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Line Horse
Champagne Problems
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
7 / 11
Within 2 points
Significant Diffs
4 / 11
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    Chimes At Midnight   3    55.0    1    0.00     8.5   57    51           51    -6
2    Champagne Problems   2    60.0    2    0.20     5.5   67    67           67    +0
3    Penan Nom            2    54.5    3    2.80     5.5   67    56           57    -10
4    Priory Terrace       3    61.5    4    4.00     8.5   70    64           64    -6
5    Pizazz               3    59.5    5    4.30     8.5   -     60           60    +60
6    Sol Nomara           2    51.0    6    6.60     5.5   68    49           58    -10
7    Shiny Silva          3    53.5    7    7.00     8.5   46    48           48    +2
8    Magical Spring       3    59.5    8    8.40     8.5   -     60           60    +60
9    Smart Star           2    50.0    9    10.20    5.5   61    47           51    -10
10   Artic Al             3    58.0    10   10.50    8.5   -     57           57    +57
11   Secret Journey       2    50.0    11   14.30    5.5   55    47           47    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chimes At Midnight (ZIM) 57 60 51 +9 8.5 -
2 Champagne Problems Line 67 68 67 +1 5.5
3 Penan Nom 67 68 57 +11 5.5 -
4 Priory Terrace 70 66 64 +2 8.5 -
5 Pizazz - 62 60 +2 8.5 -
6 Sol Nomara 68 58 58 ✓ Match 5.5 -
7 Shiny Silva 46 42 48 -6 8.5 -
8 Magical Spring - 62 60 +2 8.5 -
9 Smart Star 61 52 51 +1 5.5 -
10 Artic Al - 46 57 -11 8.5 -
11 Secret Journey 55 48 47 +1 5.5 -
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