Official NHA Assessment

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

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Line Horse
Bridgerton
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
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    Guerra               4    58.0    1    0.00     4.5   67    60           60    -7
2    Mohandas             3    60.0    2    0.75     7.0   61    63           63    +2
3    Bridgerton           2    58.0    3    2.25     0.0   72    72           72    +0
4    Bob Lee Swagger      4    54.0    4    3.50     4.5   -     53           53    +53
5    Prince Of Denmark    4    58.0    5    4.00     4.5   72    61           62    -10
6    Maldano              3    54.0    6    6.25     7.0   -     47           47    +47
7    Seethebadge          2    58.0    7    6.75     0.0   68    69           69    +1
8    Meresankh            2    55.0    8    13.25    0.0   63    63           63    +0
9    Devil A Saint        4    58.5    9    14.25    4.5   68    61           61    -7
10   What A Time          2    58.0    10   36.00    0.0   -     69           69    +69
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Guerra 67 86 60 +26 4.5 -
2 Mohandas 61 64 63 +1 7.0 -
3 Bridgerton Line 72 67 72 -5 0.0
4 Bob Lee Swagger - 53 53 ✓ Match 4.5 -
5 Prince Of Denmark 72 51 62 -11 4.5 -
6 Maldano - 60 47 +13 7.0 -
7 Seethebadge 68 45 69 -24 0.0 -
8 Meresankh 63 55 63 -8 0.0 -
9 Devil A Saint 68 69 61 +8 4.5 -
10 What A Time - 35 69 -34 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