Official NHA Assessment

Race 4: BETWAY MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Hat Trick Or Treat
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 10
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    Hat Trick Or Treat   2    58.0    1    0.00     0.0   80    80           80    +0
2    Exceedingly Glam     3    55.0    2    2.25     8.0   -     61           61    +61
3    Under The Rainbow    3    60.0    3    5.00     8.0   43    68           68    +25
4    Prolific Star        3    55.5    4    6.25     8.0   -     59           59    +59
5    Grand Oasis          3    58.0    5    7.50     8.0   60    64           64    +4
6    Legendary            2    58.0    6    8.50     0.0   69    80           80    +11
7    Arctic Owl           3    58.0    7    10.25    8.0   -     64           64    +64
8    Howzit Boet          2    58.0    8    10.50    0.0   67    80           80    +13
9    Brightest Blaze      3    60.0    9    12.75    8.0   45    68           68    +23
10   Beartic              3    58.0    10   13.50    8.0   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hat Trick Or Treat Line 80 76 80 -4 0.0
2 Exceedingly Glam - 78 61 +17 8.0 -
3 Under The Rainbow 43 64 68 -4 8.0 -
4 Prolific Star - 64 59 +5 8.0 -
5 Grand Oasis 60 72 64 +8 8.0 -
6 Legendary 69 69 80 -11 0.0 -
7 Arctic Owl - 54 64 -10 8.0 -
8 Howzit Boet 67 61 80 -19 0.0 -
9 Brightest Blaze 45 43 68 -25 8.0 -
10 Beartic - 54 64 -10 8.0 -
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