Official NHA Assessment

Race 4: RACEHORSE OWNERS ASSOCIATION MR 80 HANDICAP (Open)

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Line Horse
Lets Play Poker
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
4 / 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    Sovereigns Call      4    54.5    1    0.00     2.5   69    71           69    +0
2    Ampersand            2    59.5    2    0.80     0.0   82    90           90    +8
3    Lets Play Poker      3    59.0    3    1.60     5.0   78    78           78    +0
4    Lava Fire            3    55.0    4    1.70     5.0   80    70           70    -10
5    Theres A Light       4    59.5    5    2.30     2.5   79    83           83    +4
6    Guerilla Warfare     3    54.0    6    3.60     5.0   78    66           68    -10
7    Super Awesome        4    58.0    7    3.80     2.5   76    79           79    +3
8    Orange County        2    60.0    8    4.70     0.0   90    87           87    -3
99   Laughing William     5    56.0    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sovereigns Call 69 70 69 +1 2.5 -
2 Ampersand 82 83 90 -7 0.0 -
3 Lets Play Poker Line 78 78 78 ✓ Match 5.0
4 Lava Fire 80 69 70 -1 5.0 -
5 Theres A Light 79 76 83 -7 2.5 -
6 Guerilla Warfare 78 75 68 +7 5.0 -
7 Super Awesome 76 79 79 ✓ Match 2.5 -
8 Orange County 90 77 87 -10 0.0 -
99 Laughing William - 75 79 -4 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