Official NHA Assessment

Race 3: TOTE FOR THE WIN OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Saudi Sweep
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    On Song              2    54.0    1    0.00     6.5   70    63           63    -7
2    Champagne Problems   2    58.0    2    0.40     6.5   65    71           71    +6
3    Saudi Sweep          3    59.5    3    1.30     9.5   68    68           68    +0
4    Chimes At Midnight   3    55.0    4    6.30     9.5   62    59           59    -3
5    Cosmic Orbit         3    56.0    5    8.50     9.5   -     61           61    +61
6    Peggy Sue Shake      3    60.0    6    11.30    9.5   -     69           69    +69
7    Chicago Lass         6    55.0    7    13.40    0.0   52    78           78    +26
8    Praise De La Rey     2    60.0    8    13.45    6.5   -     75           75    +75
9    Third Winter         2    56.0    9    14.55    6.5   -     67           67    +67
99   Cinnamon Coffee      2    56.0    99   0.00     6.5   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 On Song 70 74 63 +11 6.5 -
2 Champagne Problems 65 68 71 -3 6.5 -
3 Saudi Sweep Line 68 68 68 ✓ Match 9.5
4 Chimes At Midnight (ZIM) 62 60 59 +1 9.5 -
5 Cosmic Orbit - 65 61 +4 9.5 -
6 Peggy Sue Shake - 76 69 +7 9.5 -
7 Chicago Lass 52 43 78 -35 0.0 -
8 Praise De La Rey - 66 75 -9 6.5 -
9 Third Winter - 60 67 -7 6.5 -
99 Cinnamon Coffee - - 67 -67 6.5 -
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