Official NHA Assessment

Race 3: CSI THABILE MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
High Queue
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 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    High Queue           4    60.0    1    0.00     6.0   72    72           72    +0
2    Manz Knight          6    60.0    2    1.80     0.0   66    89           89    +23
3    Roll Of The Dice     3    60.0    3    2.80     9.5   63    68           68    +5
4    Gamer                4    60.0    4    3.55     6.0   57    75           75    +18
5    Heroic Act           3    56.0    5    5.75     9.5   76    57           66    -10
6    Howzit Boet          2    56.0    6    9.25     0.0   68    76           76    +8
7    Chief Of Staff       3    57.5    7    9.45     9.5   60    60           60    +0
8    Madeira Cliffs       3    60.0    8    11.25    9.5   60    65           65    +5
9    City Lights          4    56.5    9    12.25    6.0   66    65           65    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 High Queue Line 72 74 72 +2 6.0
2 Manz Knight 66 60 89 -29 0.0 -
3 Roll Of The Dice 63 81 68 +13 9.5 -
4 Gamer 57 65 75 -10 6.0 -
5 Heroic Act 76 65 66 -1 9.5 -
6 Howzit Boet 68 61 76 -15 0.0 -
7 Chief Of Staff 60 58 60 -2 9.5 -
8 Madeira Cliffs 60 57 65 -8 9.5 -
9 City Lights 66 52 65 -13 6.0 -
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