Official NHA Assessment

Race 10: KHAYA STABLES WORK RIDERS AND JOCKEYS CHAMPIONSHIP MAIDEN PLATE (For all Maidens)

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Line Horse
Speed Racer
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Speed Racer          4    62.5    1    0.00     5.0   82    82           82    +0
2    Approach Shot        2    62.5    2    1.00     3.0   71    86           86    +15
3    Wissa's On Fire      4    60.0    3    1.50     5.0   -     77           77    +77
4    The Us Of A          3    60.0    4    3.75     4.5   75    78           78    +3
5    Champonelle          4    62.5    5    4.05     5.0   77    82           82    +5
6    Azzurri              4    60.0    6    5.80     5.0   -     77           77    +77
7    Noon Day Gun         4    60.0    7    7.55     5.0   78    77           77    -1
8    Otis The Brave       3    62.5    8    10.05    4.5   65    83           83    +18
9    Gift Of Grace        3    62.5    9    10.45    4.5   -     83           83    +83
10   Scimitar             3    60.0    10   14.70    4.5   -     78           78    +78
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Speed Racer Line 82 88 82 +6 5.0
2 Approach Shot 71 70 86 -16 3.0 -
3 Wissa's On Fire - 71 77 -6 5.0 -
4 The Us Of A 75 104 78 +26 4.5 -
5 Champonelle 77 87 82 +5 5.0 -
6 Azzurri - 77 77 ✓ Match 5.0 -
7 Noon Day Gun 78 66 77 -11 5.0 -
8 Otis The Brave 65 59 83 -24 4.5 -
9 Gift Of Grace - 53 83 -30 4.5 -
10 Scimitar - - 78 -78 4.5 -
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