Official NHA Assessment

Race 2: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Hemisphere
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 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    Grey Jet             3    59.0    1    0.00     8.5   -     -            -     +0
2    Exceedingly Glam     3    56.5    2    2.75     8.5   -     -5           -     +0
3    Lloyd Wright         3    59.0    3    4.50     8.5   -     -            -     +0
4    Mist In Ireland      3    56.5    4    5.00     8.5   -     -5           -     +0
5    Hemisphere           3    59.0    5    5.10     8.5   -     -            -     +0
6    Casus Belli          3    59.0    6    7.50     8.5   -     -            -     +0
7    Alesian Beau         3    59.0    7    8.50     8.5   -     -            -     +0
8    Mystic Vision        3    59.0    8    15.50    8.5   -     -            -     +0
9    Prince Of Miracles   2    55.0    9    17.50    5.5   61    -2           51    -10
10   Yukon                4    57.5    10   32.50    10.0  -     -6           -     +0
99   Brigham              3    59.0    99   0.00     8.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grey Jet - 108 - +108 8.5 -
2 Exceedingly Glam - 78 - +78 8.5 -
3 Lloyd Wright - 80 - +80 8.5 -
4 Mist In Ireland - 72 - +72 8.5 -
5 Hemisphere Line - 83 - +83 8.5
6 Casus Belli - 64 - +64 8.5 -
7 Alesian Beau - 66 - +66 8.5 -
8 Mystic Vision - 66 - +66 8.5 -
9 Prince Of Miracles 61 58 51 +7 5.5 -
10 Yukon - 59 - +59 10.0 -
99 Brigham - 74 - - 8.5 -
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