Official NHA Assessment

Race 1: #YOUCANBETONUS! MAIDEN PLATE (For all Maidens)

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Line Horse
Red Sunrise
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
10 / 13
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    Amandla Ngawethu     3    56.0    1    0.00     6.0   69    -6           -     -69
2    Javelin Warrior      4    60.0    2    0.30     3.5   -     12           12    +12
3    Red Sunrise          3    58.0    3    2.80     6.0   -     -            -     +0
4    District Attorney    3    58.0    4    4.40     6.0   -     -2           -     +0
5    World Order          2    58.0    5    5.30     0.0   80    10           70    -10
6    Arizona Magic        4    60.0    6    6.55     3.5   69    7            59    -10
7    Afterburn            3    60.0    7    7.05     6.0   66    2            56    -10
8    Knowmore             3    58.0    8    7.25     6.0   -     -2           -     +0
9    Anonymous            4    60.0    9    9.25     3.5   63    7            53    -10
10   King Ethelred        3    58.0    10   9.35     6.0   -     -2           -     +0
11   Millennium Warrior   2    58.0    11   12.05    0.0   -     10           10    +10
12   God's Country        2    58.0    12   16.75    0.0   -     10           10    +10
13   Big Sky Ranger       3    58.0    13   26.50    6.0   -     -2           -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Amandla Ngawethu 69 72 - +72 6.0 -
2 Javelin Warrior - - 12 -12 3.5 -
3 Red Sunrise Line - 79 - +79 6.0
4 District Attorney - 74 - +74 6.0 -
5 World Order 80 84 70 +14 0.0 -
6 Arizona Magic 69 66 59 +7 3.5 -
7 Afterburn 66 62 56 +6 6.0 -
8 Knowmore - 76 - +76 6.0 -
9 Anonymous 63 50 53 -3 3.5 -
10 King Ethelred - - - ✓ Match 6.0 -
11 Millennium Warrior - 74 10 +64 0.0 -
12 God's Country - 60 10 +50 0.0 -
13 Big Sky Ranger - - - ✓ Match 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