Official NHA Assessment

Race 2: GALLOP TV MAIDEN PLATE (For all Maidens)

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Line Horse
Fire Tonic
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
9 / 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    The Shepherd         3    59.0    1    0.00     5.0   81    64           64    -17
2    Helsinki             2    57.5    2    0.60     0.0   78    76           76    -2
3    Sweeper Keeper       4    59.0    3    5.90     3.0   77    68           68    -9
4    Fire Tonic           3    60.0    4    6.20     5.0   66    66           66    +0
5    Tipouri              3    59.0    5    7.70     5.0   67    64           64    -3
6    Heart Of Thieves     4    60.0    6    7.75     3.0   67    70           70    +3
7    Du Cane              2    60.0    7    14.75    0.0   52    76           76    +24
8    Girl's World         3    53.0    8    17.45    5.0   -     52           52    +52
9    Chief Of Staff       3    59.0    9    19.35    5.0   -     64           64    +64
10   Prince Of Dubai      2    59.0    10   26.65    0.0   64    74           74    +10
99   Russian Writer       3    60.0    99   0.00     5.0   -     66           66    +0
99   Teriyaki             4    59.0    99   0.00     3.0   -     68           68    +0
99   Torix Night          3    59.0    99   0.00     5.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Shepherd 81 97 64 +33 5.0 -
2 Helsinki 78 72 76 -4 0.0 -
3 Sweeper Keeper 77 67 68 -1 3.0 -
4 Fire Tonic Line 66 72 66 +6 5.0
5 Tipouri 67 72 64 +8 5.0 -
6 Heart Of Thieves 67 45 70 -25 3.0 -
7 Du Cane 52 45 76 -31 0.0 -
8 Girl's World - 61 52 +9 5.0 -
9 Chief Of Staff - 58 64 -6 5.0 -
10 Prince Of Dubai 64 54 74 -20 0.0 -
99 Russian Writer - 47 66 -19 5.0 -
99 Teriyaki - 71 68 +3 3.0 -
99 Torix Night - 68 64 +4 5.0 -
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