Official NHA Assessment

Race 9: BETWAY MR 89 HANDICAP (Open)

Back to Race
Line Horse
The Playboy Bomber
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Dark Silver          4    57.0    1    0.00     4.0   83    86           83    +0
2    The Playboy Bomber   4    52.0    2    0.50     4.0   81    81           81    +0
3    Douglas Dragon       3    57.0    3    0.55     7.0   83    85           85    +2
4    Open Highway         4    57.0    4    0.65     4.0   83    91           91    +8
5    Player               3    58.5    5    1.85     7.0   89    86           86    -3
6    Impact Investor      2    55.0    6    6.85     0.0   79    90           90    +11
7    Buddy Boy            3    53.5    7    7.10     7.0   90    73           80    -10
8    Dance King           2    59.5    8    7.60     0.0   88    99           99    +11
9    Salute The Flag      3    55.5    9    10.20    7.0   83    77           77    -6
10   One More Star        3    57.0    10   11.90    7.0   83    80           80    -3
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dark Silver 83 84 83 +1 4.0 -
2 The Playboy Bomber Line 81 88 81 +7 4.0
3 Douglas Dragon 83 89 85 +4 7.0 -
4 Open Highway 83 94 91 +3 4.0 -
5 Player 89 84 86 -2 7.0 -
6 Impact Investor 79 77 90 -13 0.0 -
7 Buddy Boy 90 85 80 +5 7.0 -
8 Dance King 88 89 99 -10 0.0 -
9 Salute The Flag 83 81 77 +4 7.0 -
10 One More Star 83 87 80 +7 7.0 -
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