Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Mccartney
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
11 / 13
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    Mccartney            3    60.0    1    0.00     4.5   62    62           62    +0
2    Tiger In Red         3    60.0    2    1.10     4.5   65    62           62    -3
3    Cotton Ron           6    58.5    3    1.40     0.0   64    68           68    +4
4    Wylie Riley          2    60.0    4    3.70     3.0   75    65           65    -10
5    Axel Collins         5    60.0    5    4.90     0.0   72    71           71    -1
6    Master Of Defense    3    58.5    6    4.95     4.5   55    59           59    +4
7    El Draque            5    60.0    7    5.05     0.0   -     71           71    +71
8    Victor Rail          5    60.0    8    7.15     0.0   -     71           71    +71
9    Tiger Spring         2    60.0    9    8.75     3.0   60    65           65    +5
10   Shot Of Courage      3    60.0    10   8.80     4.5   49    62           62    +13
11   John The Great       3    57.5    11   12.20    4.5   26    57           57    +31
12   Imperial Bliss       3    60.0    12   13.30    4.5   59    62           62    +3
13   Majestic Roy         5    60.0    13   17.10    0.0   -     71           71    +71
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mccartney Line 62 54 62 -8 4.5
2 Tiger In Red 65 66 62 +4 4.5 -
3 Cotton Ron 64 59 68 -9 0.0 -
4 Wylie Riley 75 79 65 +14 3.0 -
5 Axel Collins 72 55 71 -16 0.0 -
6 Master Of Defense 55 63 59 +4 4.5 -
7 El Draque - 57 71 -14 0.0 -
8 Victor Rail - 61 71 -10 0.0 -
9 Tiger Spring 60 57 65 -8 3.0 -
10 Shot Of Courage 49 73 62 +11 4.5 -
11 John The Great 26 36 57 -21 4.5 -
12 Imperial Bliss 59 51 62 -11 4.5 -
13 Majestic Roy - - 71 -71 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