Official NHA Assessment

Race 6: TOTE FOR THE WIN CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Dawn Surprise
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
8 / 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    Yannakis             2    58.0    1    0.00     7.0   62    77           68    +6
2    Dawn Surprise        4    54.5    2    1.00     12.0  60    60           60    +0
3    The Mask             2    61.5    3    1.05     7.0   69    84           84    +15
4    In The Bag           4    58.5    4    2.95     12.0  63    68           68    +5
5    One Irish Rover      5    57.0    5    3.25     0.0   68    89           89    +21
6    Happy Wanderer       5    55.0    6    3.55     0.0   56    85           85    +29
7    Indecent Proposal    4    59.5    7    4.65     12.0  65    70           70    +5
8    Rhythm               2    58.5    8    4.90     7.0   71    78           78    +7
9    Captain Efficient    2    59.5    9    7.60     7.0   68    80           80    +12
10   Prized Platinum      3    60.0    10   10.00    10.5  66    74           74    +8
11   Ruby Claire          3    60.0    11   11.80    10.5  66    74           74    +8
12   Run The World        3    60.0    12   12.00    10.5  66    74           74    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Yannakis 62 67 68 -1 7.0 -
2 Dawn Surprise Line 60 79 60 +19 12.0
3 The Mask 69 84 84 ✓ Match 7.0 -
4 In The Bag 63 61 68 -7 12.0 -
5 One Irish Rover 68 65 89 -24 0.0 -
6 Happy Wanderer 56 55 85 -30 0.0 -
7 Indecent Proposal 65 65 70 -5 12.0 -
8 Rhythm 71 67 78 -11 7.0 -
9 Captain Efficient 68 66 80 -14 7.0 -
10 Prized Platinum 66 72 74 -2 10.5 -
11 Ruby Claire 66 52 74 -22 10.5 -
12 Run The World 66 60 74 -14 10.5 -
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