Official NHA Assessment

Race 6: NATHAN KOTZEN RACING CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Riccardo
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
6 / 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    Papa C               6    55.5    1    0.00     0.0   71    71           71    +0
2    Riccardo             7    55.5    2    1.50     0.0   74    74           74    +0
2    Ragnar The King      3    55.0    2    1.50     9.5   71    54           61    -10
4    Gotta Go Eddie       2    54.5    4    1.70     0.0   88    72           78    -10
5    Moola Man            4    58.5    5    3.00     6.0   77    67           67    -10
6    Ideal Gift           2    56.0    6    3.25     0.0   72    74           74    +2
7    African Dusk         5    60.5    7    3.30     0.0   81    82           82    +1
8    Eventidor            6    59.5    8    5.60     0.0   79    79           79    +0
9    Syx Hotfix           3    58.5    9    6.90     9.5   85    58           75    -10
10   Zoombomber           2    49.0    10   7.60     0.0   66    58           58    -8
11   Lexican Point        2    55.5    11   7.75     0.0   71    71           71    +0
99   High Queue           4    57.5    99   0.00     6.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Papa C 71 73 71 +2 0.0 -
2 Riccardo Line 74 68 74 -6 0.0
2 Ragnar The King 71 66 61 +5 9.5 -
4 Gotta Go Eddie 88 93 78 +15 0.0 -
5 Moola Man 77 75 67 +8 6.0 -
6 Ideal Gift 72 71 74 -3 0.0 -
7 African Dusk 81 83 82 +1 0.0 -
8 Eventidor 79 89 79 +10 0.0 -
9 Syx Hotfix 85 83 75 +8 9.5 -
10 Zoombomber 66 60 58 +2 0.0 -
11 Lexican Point 71 69 71 -2 0.0 -
99 High Queue - 74 63 +11 6.0 -
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