Official NHA Assessment

Race 8: WSB LIVE CASINO HYBRID STAKES (Open)

Back to Race
Line Horse
Barney Mcgrew
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Surjay               3    53.0    1    0.00     2.0   94    93           93    -1
2    Resonate             3    60.0    2    1.25     2.0   108   107          107   -1
3    Barney Mcgrew        4    52.0    3    4.25     2.5   90    90           90    +0
4    Double Charge        5    54.0    4    4.65     0.0   93    99           99    +6
5    Speed Machine        4    60.0    5    4.70     2.5   108   106          106   -2
6    Rockin' Ringo        6    58.5    6    7.20     0.0   103   108          108   +5
7    Transact             3    52.0    7    10.70    2.0   82    91           91    +9
8    Worlds Your Oyster   5    58.5    8    13.20    0.0   103   108          108   +5
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Surjay 94 121 93 +28 2.0 -
2 Resonate 108 103 107 -4 2.0 -
3 Barney Mcgrew Line 90 69 90 -21 2.5
4 Double Charge 93 80 99 -19 0.0 -
5 Speed Machine 108 104 106 -2 2.5 -
6 Rockin' Ringo 103 107 108 -1 0.0 -
7 Transact 82 77 91 -14 2.0 -
8 Worlds Your Oyster 103 95 108 -13 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