Official NHA Assessment

Race 9: RACING240 MR 72 HANDICAP (Open)

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Line Horse
Redlightgreenlight
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
6 / 12
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    Storm Ahead          4    62.0    1    0.00     2.5   76    79           76    +0
2    Force Publique       2    60.0    2    0.25     0.0   82    80           80    -2
3    Naretoi              2    60.5    3    0.35     0.0   73    86           86    +13
4    Redlightgreenlight   2    61.5    4    2.45     0.0   85    85           85    +0
5    Step Into It         2    56.5    5    3.95     0.0   78    74           74    -4
6    Blurred Vision       3    53.0    6    4.45     5.0   57    56           56    -1
7    Unsolved Riddle      3    59.0    7    4.95     5.0   75    68           68    -7
8    Circle Of Grace      4    52.0    8    7.45     2.5   52    59           59    +7
9    Gold De Grace        4    52.0    9    11.75    2.5   50    59           59    +9
10   Red Sparrow          3    53.5    10   12.00    5.0   59    57           57    -2
11   Peace Treaty         3    58.5    11   13.30    5.0   69    67           67    -2
99   Jaffa                3    60.0    99   0.00     5.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Storm Ahead 76 80 76 +4 2.5 -
2 Force Publique 82 84 80 +4 0.0 -
3 Naretoi 73 73 86 -13 0.0 -
4 Redlightgreenlight Line 85 76 85 -9 0.0
5 Step Into It 78 76 74 +2 0.0 -
6 Blurred Vision 57 56 56 ✓ Match 5.0 -
7 Unsolved Riddle 75 77 68 +9 5.0 -
8 Circle Of Grace 52 51 59 -8 2.5 -
9 Gold De Grace 50 51 59 -8 2.5 -
10 Red Sparrow 59 55 57 -2 5.0 -
11 Peace Treaty 69 69 67 +2 5.0 -
99 Jaffa - 82 70 +12 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