Official NHA Assessment

Race 3: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Flute
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Flute                3    57.5    1    0.00     1.5   66    66           66    +0
2    Mon Tresor           3    57.0    2    0.50     1.5   58    70           70    +12
3    Denver               3    60.0    3    4.20     1.5   46    72           72    +26
4    Sea Cruise           3    57.0    4    7.20     1.5   56    65           65    +9
5    Apollo Eleven        4    60.0    5    8.80     0.5   64    73           73    +9
6    Flying Wonder        3    60.0    6    9.10     1.5   -     71           71    +71
7    Arabian Wylie        3    60.0    7    12.40    1.5   55    71           71    +16
8    Dark William         2    56.0    8    17.40    0.0   -     66           66    +66
9    Gentle Rain          4    60.0    9    32.30    0.5   -     73           73    +73
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Flute Line 66 61 66 -5 1.5
2 Mon Tresor 58 71 70 +1 1.5 -
3 Denver 46 58 72 -14 1.5 -
4 Sea Cruise 56 58 65 -7 1.5 -
5 Apollo Eleven 64 59 73 -14 0.5 -
6 Flying Wonder - 52 71 -19 1.5 -
7 Arabian Wylie 55 48 71 -23 1.5 -
8 Dark William - 33 66 -33 0.0 -
9 Gentle Rain - - 73 -73 0.5 -
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