Official NHA Assessment

Race 8: NEXT NELSON MANDELA BAY RACING RACEMEETING FRIDAY 14 JANUARY MR 68 HANDICAP (Open)

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Line Horse
Kingston Rock
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    Masterful            6    57.0    1    0.00     0.0   62    60           62    +0
2    Dogliotti            6    60.0    2    0.50     0.0   68    71           71    +3
3    Kingston Rock        6    57.5    3    2.50     0.0   63    63           63    +0
4    Baltic Beat          4    60.5    4    2.60     2.5   69    64           64    -5
5    Sanctity             4    56.0    5    2.85     2.5   60    55           55    -5
6    Red Eight            7    55.5    6    3.10     0.0   58    59           59    +1
7    Curious              5    55.5    7    4.85     0.0   59    57           57    -2
8    Red Bishop           5    55.0    8    5.60     0.0   58    56           56    -2
9    Silver Celebrity     4    53.0    9    6.10     2.5   54    47           47    -7
10   Livingstone          4    48.0    10   7.35     2.5   42    37           37    -5
11   The Gaul             5    53.5    11   16.35    0.0   55    53           53    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Masterful 62 65 62 +3 0.0 -
2 Dogliotti 68 69 71 -2 0.0 -
3 Kingston Rock Line 63 50 63 -13 0.0
4 Baltic Beat 69 68 64 +4 2.5 -
5 Sanctity 60 61 55 +6 2.5 -
6 Red Eight 58 57 59 -2 0.0 -
7 Curious 59 50 57 -7 0.0 -
8 Red Bishop 58 50 56 -6 0.0 -
9 Silver Celebrity 54 46 47 -1 2.5 -
10 Livingstone 42 40 37 +3 2.5 -
11 The Gaul 55 47 53 -6 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