Official NHA Assessment

Race 6: FURIOUS ROOM COFFEE SHOP NOW OPENED WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Prime Example
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Twice In Camden      3    56.5    1    0.00     8.5   50    55           55    +5
2    Prime Example        2    56.0    2    7.75     0.0   71    71           71    +0
3    Kalahari Chrome      7    60.0    3    14.00    0.0   50    79           79    +29
4    Ballycotton          2    52.5    4    25.00    0.0   66    64           64    -2
5    Harold The Duke      3    60.0    5    40.00    8.5   54    62           62    +8
6    Ford Fairlane        2    56.0    6    99.99    0.0   41    71           71    +30
7    Bad Hair Day         2    52.5    7    99.99    0.0   40    64           64    +24
8    Countess Of Peace    2    52.5    8    99.99    0.0   52    64           64    +12
9    The Merciful         5    56.0    9    99.99    0.0   59    71           71    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Twice In Camden 50 46 55 -9 8.5 -
2 Prime Example Line 71 93 71 +22 0.0
3 Kalahari Chrome 50 50 79 -29 0.0 -
4 Ballycotton 66 53 64 -11 0.0 -
5 Harold The Duke 54 86 62 +24 8.5 -
6 Ford Fairlane 41 41 71 -30 0.0 -
7 Bad Hair Day 40 47 64 -17 0.0 -
8 Countess Of Peace 52 52 64 -12 0.0 -
9 The Merciful 59 54 71 -17 0.0 -
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