Official NHA Assessment

Race 2: BETWAY MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Global Zee
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 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    His Lordship         3    57.5    1    0.00     9.5   65    62           62    -3
2    Blizzard Snow        3    55.5    2    0.20     9.5   -     58           58    +58
3    Busstopinhounslow    3    58.0    3    2.50     9.5   83    63           73    -10
4    Good To Great        3    60.0    4    3.50     9.5   -     67           67    +67
5    Parabellum           3    58.0    5    6.50     9.5   -     63           63    +63
6    Global Zee           2    58.0    6    7.25     6.5   69    69           69    +0
7    Gold Rush Kid        2    58.0    7    7.75     6.5   69    69           69    +0
8    American Eagle       3    58.0    8    8.00     9.5   -     63           63    +63
9    Rise And Shine       3    57.5    9    9.25     9.5   -     62           62    +62
10   Blurred Vision       3    58.0    10   14.50    9.5   63    63           63    +0
11   Primal Quest         3    58.0    11   14.70    9.5   -     63           63    +63
12   Ringho               4    60.0    12   15.50    11.0  48    64           64    +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 His Lordship 65 85 62 +23 9.5 -
2 Blizzard Snow - 86 58 +28 9.5 -
3 Busstopinhounslow 83 110 73 +37 9.5 -
4 Good To Great - 56 67 -11 9.5 -
5 Parabellum - 61 63 -2 9.5 -
6 Global Zee Line 69 50 69 -19 6.5
7 Gold Rush Kid 69 69 69 ✓ Match 6.5 -
8 American Eagle - 59 63 -4 9.5 -
9 Rise And Shine - 51 62 -11 9.5 -
10 Blurred Vision 63 56 63 -7 9.5 -
11 Primal Quest - 81 63 +18 9.5 -
12 Ringho 48 60 64 -4 11.0 -
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