Official NHA Assessment

Race 5: COMPUTAFORM ONLINE MAIDEN PLATE (For all Maidens)

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Line Horse
Jem Rock
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
9 / 13
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    Captive Moon         6    60.0    1    0.00     0.0   77    63           63    -14
2    Futurismo            3    60.0    2    3.00     3.0   -     59           59    +59
3    Kiss Inthe Rain      3    60.0    3    3.50     3.0   62    58           58    -4
4    Jem Rock             5    60.0    4    6.75     0.0   63    63           63    +0
5    Al Bugatti           3    60.0    5    7.05     3.0   70    57           60    -10
6    Robert Burns         3    60.0    6    7.55     3.0   -     57           57    +57
7    Home James           3    60.0    7    9.05     3.0   -     57           57    +57
8    Hamlet               4    60.0    8    9.35     2.0   64    59           59    -5
9    Forever Bill         3    60.0    9    10.85    3.0   72    57           62    -10
10   Jack And Ginger      4    60.5    10   11.35    2.0   55    60           60    +5
11   Thousand Ships       3    60.0    11   11.55    3.0   -     57           57    +57
12   Watch And Learn      3    60.0    12   17.55    3.0   -     57           57    +57
13   Captain Cola         3    60.0    13   21.55    3.0   -     57           57    +57
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captive Moon 77 75 63 +12 0.0 -
2 Futurismo - 60 59 +1 3.0 -
3 Kiss Inthe Rain 62 72 58 +14 3.0 -
4 Jem Rock Line 63 57 63 -6 0.0
5 Al Bugatti 70 78 60 +18 3.0 -
6 Robert Burns - 71 57 +14 3.0 -
7 Home James - 52 57 -5 3.0 -
8 Hamlet 64 50 59 -9 2.0 -
9 Forever Bill 72 56 62 -6 3.0 -
10 Jack And Ginger 55 63 60 +3 2.0 -
11 Thousand Ships - 75 57 +18 3.0 -
12 Watch And Learn - 42 57 -15 3.0 -
13 Captain Cola - 62 57 +5 3.0 -
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