Official NHA Assessment

Race 5: #DestinationCapeRacing MR 74 HANDICAP (Open)

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Line Horse
Masterful Guy
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
3 / 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    Thunder Master       6    61.0    1    0.00     0.0   76    82           76    +0
2    Montien              3    60.0    2    1.25     5.0   84    74           74    -10
3    Masterful Guy        3    52.0    3    1.75     5.0   57    57           57    +0
4    Doubling Up          2    57.5    4    4.00     0.0   79    76           76    -3
5    Prevalence           3    62.0    5    4.75     5.0   88    74           78    -10
6    Captive Moon         6    55.5    6    5.50     0.0   65    71           71    +6
7    Piketberg Alley      4    58.5    7    8.50     2.5   71    72           72    +1
99   Ponte Pietra         2    58.5    99   0.00     0.0   -     77           77    +0
99   Mister Monocle       4    56.0    99   0.00     2.5   -     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 Thunder Master 76 80 76 +4 0.0 -
2 Montien 84 122 74 +48 5.0 -
3 Masterful Guy Line 57 58 57 +1 5.0
4 Doubling Up 79 74 76 -2 0.0 -
5 Prevalence 88 83 78 +5 5.0 -
6 Captive Moon 65 75 71 +4 0.0 -
7 Piketberg Alley 71 63 72 -9 2.5 -
99 Ponte Pietra - 102 77 +25 0.0 -
99 Mister Monocle - 71 67 +4 2.5 -
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