Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY OPEN MAIDEN (F & M) (For Maidens F&M. R15 000 Win bonus ROA Members)

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Line Horse
Tune Again
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 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    Just Forever         3    52.5    1    0.00     7.5   46    21           21    -25
2    Enchanted Sky        2    61.0    2    0.10     5.0   73    43           63    -10
3    Tune Again           6    52.0    3    1.60     0.0   35    35           35    +0
4    Rain Bird            2    55.0    4    2.60     5.0   59    31           49    -10
5    Royal Venus          2    56.0    5    4.35     5.0   53    33           43    -10
6    Mia Ragazza          4    61.0    6    7.85     9.0   -     35           35    +35
7    Kit Kat Club         3    61.0    7    10.60    7.5   -     38           38    +38
8    French Script        3    60.0    8    17.10    7.5   -     36           36    +36
9    Captivate            2    58.5    9    20.35    5.0   68    38           58    -10
10   Over The Moon        3    60.0    10   30.60    7.5   -     36           36    +36
99   Lava Fields          3    51.5    99   0.00     7.5   -     19           19    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Just Forever 46 49 21 +28 7.5 -
2 Enchanted Sky 73 78 63 +15 5.0 -
3 Tune Again Line 35 50 35 +15 0.0
4 Rain Bird 59 70 49 +21 5.0 -
5 Royal Venus 53 50 43 +7 5.0 -
6 Mia Ragazza - 50 35 +15 9.0 -
7 Kit Kat Club - 43 38 +5 7.5 -
8 French Script - 38 36 +2 7.5 -
9 Captivate 68 63 58 +5 5.0 -
10 Over The Moon - 42 36 +6 7.5 -
99 Lava Fields - 42 19 +23 7.5 -
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