Official NHA Assessment

Race 1: BETWAY WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Pretty Precious
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Cosmic Queen         3    56.5    1    0.00     7.5   -     71           6     +6
2    Alesian Beau         3    59.0    2    4.25     7.5   -     76           76    +76
3    Pretty Precious      3    57.5    3    7.00     7.5   73    73           73    +0
4    Thunderbird          4    60.0    4    11.25    9.0   64    75           75    +11
5    Gun Barrel           3    59.0    5    12.50    7.5   -     76           76    +76
6    Ringho               4    60.0    6    12.80    9.0   52    75           75    +23
7    Fizzly Bubbly        3    59.0    7    13.00    7.5   -     76           76    +76
8    The Real Deal        4    60.0    8    15.75    9.0   52    75           75    +23
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cosmic Queen - 97 6 +91 7.5 -
2 Alesian Beau - 66 76 -10 7.5 -
3 Pretty Precious Line 73 72 73 -1 7.5
4 Thunderbird 64 70 75 -5 9.0 -
5 Gun Barrel - 68 76 -8 7.5 -
6 Ringho 52 60 75 -15 9.0 -
7 Fizzly Bubbly - 70 76 -6 7.5 -
8 The Real Deal 52 50 75 -25 9.0 -
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