Official NHA Assessment

Race 4: www.caperacing.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Keep Shining
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    Douglas              4    60.0    1    0.00     1.0   55    61           61    +6
2    Run Rudolph Run      3    60.0    2    0.50     2.0   63    64           64    +1
3    Twice The Master     3    60.0    3    1.25     2.0   59    63           63    +4
4    Naushon              3    60.0    4    1.35     2.0   71    62           62    -9
5    Electric Warrior     3    60.0    5    1.65     2.0   65    62           62    -3
6    Keep Shining         3    60.0    6    1.70     2.0   62    62           62    +0
7    Global Movement      6    60.0    7    2.00     0.0   66    66           66    +0
8    Global Forests       3    60.0    8    2.30     2.0   58    61           61    +3
9    Robert Burns         3    60.0    9    2.60     2.0   71    61           61    -10
10   Jem Rock             5    60.0    10   3.00     0.0   60    65           65    +5
11   Golden Grace         3    56.5    11   3.05     2.0   54    54           54    +0
99   Guy Alexander        3    60.0    99   0.00     2.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Douglas 55 52 61 -9 1.0 -
2 Run Rudolph Run 63 57 64 -7 2.0 -
3 Twice The Master 59 58 63 -5 2.0 -
4 Naushon 71 68 62 +6 2.0 -
5 Electric Warrior 65 60 62 -2 2.0 -
6 Keep Shining Line 62 64 62 +2 2.0
7 Global Movement 66 65 66 -1 0.0 -
8 Global Forests 58 65 61 +4 2.0 -
9 Robert Burns 71 71 61 +10 2.0 -
10 Jem Rock 60 57 65 -8 0.0 -
11 Golden Grace 54 52 54 -2 2.0 -
99 Guy Alexander - 72 59 +13 2.0 -
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