Official NHA Assessment

Race 3: BOOK A TABLE CALL 0116811796 MR 89 HANDICAP (Open)

Back to Race
Line Horse
Raffles
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Star Coin            5    54.5    1    0.00     0.0   88    85           88    +0
2    Raffles              2    60.0    2    2.00     0.0   99    99           99    +0
3    Tsar Bomba           3    58.0    3    3.50     5.0   95    83           85    -10
4    Sage King            3    55.0    4    4.75     5.0   79    76           76    -3
5    Mini Coop            3    56.5    5    6.50     5.0   82    79           79    -3
6    Letsdoit             3    53.5    6    8.25     5.0   76    73           73    -3
99   Fast Love            4    58.5    99   0.00     3.0   -     87           87    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Star Coin 88 78 88 -10 0.0 -
2 Raffles Line 99 105 99 +6 0.0
3 Tsar Bomba 95 91 85 +6 5.0 -
4 Sage King 79 72 76 -4 5.0 -
5 Mini Coop 82 76 79 -3 5.0 -
6 Letsdoit 76 72 73 -1 5.0 -
99 Fast Love - 90 87 +3 3.0 -
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