Official NHA Assessment

Race 6: LUCKY FISH DIAMOND RICHES C STAKES (For All Horses)

Back to Race
Line Horse
Rattlesnake
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
5 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Palace Gift          3    58.5    1    0.00     6.0   74    82           80    +6
2    Rattlesnake          3    58.0    2    0.30     6.0   81    81           81    +0
3    All About Al         7    60.0    3    0.70     0.0   75    97           97    +22
4    Catch A Penny        3    59.5    4    1.10     6.0   81    84           84    +3
5    Moody Blue           3    57.0    5    3.35     6.0   69    79           79    +10
6    Peace Of Mind        3    59.0    6    5.10     6.0   79    83           83    +4
7    Barney Mcgrew        4    57.0    7    5.60     7.0   71    77           77    +6
8    Mont Loisir          4    57.0    8    8.85     7.0   70    77           77    +7
9    Playing Trix         3    57.5    9    9.35     6.0   84    80           80    -4
10   Cavalry Commander    3    60.0    10   9.65     6.0   76    85           85    +9
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Palace Gift 74 77 80 -3 6.0 -
2 Rattlesnake Line 81 85 81 +4 6.0
3 All About Al 75 78 97 -19 0.0 -
4 Catch A Penny 81 80 84 -4 6.0 -
5 Moody Blue 69 75 79 -4 6.0 -
6 Peace Of Mind 79 74 83 -9 6.0 -
7 Barney Mcgrew 71 69 77 -8 7.0 -
8 Mont Loisir 70 68 77 -9 7.0 -
9 Playing Trix 84 80 80 ✓ Match 6.0 -
10 Cavalry Commander 76 76 85 -9 6.0 -
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