Official NHA Assessment

Race 2: BOOK FOR CHAMPIONS DAY 29 MARCH MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Mizzen Sword
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    Gimme A Storm        3    57.5    1    0.00     3.5   72    73           73    +1
2    Mizzen Sword         3    60.0    2    0.50     3.5   78    78           78    +0
3    Curtiss Condor       3    60.0    3    3.00     3.5   -     78           78    +78
4    Trip To States       5    60.0    4    5.30     0.0   64    85           85    +21
5    Arctic Owl           3    60.0    5    10.50    3.5   58    78           78    +20
6    Red Sea Hills        3    60.0    6    13.50    3.5   -     78           78    +78
99   Beartic              3    60.0    99   0.00     3.5   -     78           78    +0
99   Obsidian             3    60.0    99   0.00     3.5   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimme A Storm 72 58 73 -15 3.5 -
2 Mizzen Sword Line 78 66 78 -12 3.5
3 Curtiss Condor - 79 78 +1 3.5 -
4 Trip To States 64 63 85 -22 0.0 -
5 Arctic Owl 58 54 78 -24 3.5 -
6 Red Sea Hills - 40 78 -38 3.5 -
99 Beartic - 54 78 -24 3.5 -
99 Obsidian - 97 78 +19 3.5 -
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