Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (3-year-olds) (For Maiden 3-year-olds)

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Line Horse
Royale Jacket
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    One Eye On Vegas     3    60.0    1    0.00     8.5   -     63           6     +6
2    Royale Jacket        2    60.0    2    7.25     0.0   80    80           80    +0
3    Green Machine        3    60.0    3    9.50     8.5   -     63           63    +63
4    Errol Flynn          3    60.0    4    9.55     8.5   -     63           63    +63
5    Texas Missile        3    60.0    5    11.30    8.5   -     63           63    +63
6    Emerald City         2    60.0    6    11.50    0.0   74    80           80    +6
7    Indian Spice         3    60.0    7    12.00    8.5   -     63           63    +63
8    War Of Wonders       3    58.5    8    17.50    8.5   -     60           60    +60
9    Talkoftheheights     2    60.0    9    30.00    0.0   55    80           80    +25
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 One Eye On Vegas - 106 6 +100 8.5 -
2 Royale Jacket Line 80 74 80 -6 0.0
3 Green Machine - 75 63 +12 8.5 -
4 Errol Flynn - 96 63 +33 8.5 -
5 Texas Missile - 94 63 +31 8.5 -
6 Emerald City 74 71 80 -9 0.0 -
7 Indian Spice - 70 63 +7 8.5 -
8 War Of Wonders - - 60 -60 8.5 -
9 Talkoftheheights 55 52 80 -28 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