Official NHA Assessment

Race 4: WWW.TAB4RACING.COM OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

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Line Horse
World Of Diamonds
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
4 / 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    Kentucky Lassie      3    59.0    1    0.00     3.0   74    64           64    -10
2    World Of Diamonds    2    51.5    2    1.25     0.0   59    59           59    +0
3    Lana View            3    55.0    3    1.50     3.0   64    59           59    -5
4    Truly Magical        2    55.5    4    2.75     0.0   67    65           65    -2
5    Touch The Sword      3    55.0    5    2.85     3.0   66    58           58    -8
6    Champagne Blaze      2    58.0    6    2.90     0.0   72    70           70    -2
7    Mediterraneanflame   3    54.5    7    3.15     3.0   65    57           57    -8
8    Jazz Away            2    52.0    8    4.40     0.0   63    56           56    -7
9    Lyrics And Songs     3    53.0    9    7.90     3.0   62    52           52    -10
10   Misspeacekeeper      3    61.0    10   31.90    3.0   -     68           68    +68
11   Witching Hour        2    56.0    11   99.99    0.0   68    64           64    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kentucky Lassie 74 77 64 +13 3.0 -
2 World Of Diamonds Line 59 59 59 ✓ Match 0.0
3 Lana View 64 64 59 +5 3.0 -
4 Truly Magical 67 67 65 +2 0.0 -
5 Touch The Sword 66 64 58 +6 3.0 -
6 Champagne Blaze 72 72 70 +2 0.0 -
7 Mediterraneanflame 65 60 57 +3 3.0 -
8 Jazz Away 63 64 56 +8 0.0 -
9 Lyrics And Songs 62 54 52 +2 3.0 -
10 Misspeacekeeper - - 68 -68 3.0 -
11 Witching Hour 68 68 64 +4 0.0 -
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