Official NHA Assessment

Race 8: GOLD RUSH SPRINT (For 3 year-olds - Non-Black Type)

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Line Horse
Rozara
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Alula's Star         3    57.0    1    0.00     3.5   95    95           95    +0
2    Cleaver Greene       3    53.0    2    1.00     3.5   87    87           87    +0
3    Gallic Chief         3    60.0    3    1.05     3.5   101   101          101   +0
4    Rozara               3    54.0    4    2.50     3.5   89    89           89    +0
5    Sheldon              6    55.0    5    2.75     0.0   91    98           98    +7
6    It's About Time      3    54.5    6    2.85     3.5   90    90           90    +0
7    Ultra Quick          6    59.0    7    5.25     0.0   99    106          106   +7
8    Warship              3    52.0    8    7.50     3.5   84    85           85    +1
9    Slings And Arrows    3    52.5    9    9.75     3.5   85    86           86    +1
10   Anytime Champ        3    52.5    10   12.00    3.5   86    86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Alula's Star 95 102 95 +7 3.5 -
2 Cleaver Greene 87 102 87 +15 3.5 -
3 Gallic Chief 101 98 101 -3 3.5 -
4 Rozara Line 89 73 89 -16 3.5
5 Sheldon 91 106 98 +8 0.0 -
6 It's About Time 90 86 90 -4 3.5 -
7 Ultra Quick 99 71 106 -35 0.0 -
8 Warship 84 87 85 +2 3.5 -
9 Slings And Arrows 85 92 86 +6 3.5 -
10 Anytime Champ 86 53 86 -33 3.5 -
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