Official NHA Assessment

Race 9: BETWAY SUMMER CUP 29 NOVEMBER MR 80 HANDICAP (Open)

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Line Horse
Bloomington
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 8
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    Grand Empire         3    56.5    1    0.00     6.0   87    81           87    +0
2    Chieftain's Shield   4    57.5    2    2.30     3.5   75    90           90    +15
3    Bloomington          3    51.5    3    5.30     6.0   71    71           71    +0
4    Elusive Red          3    55.0    4    5.70     6.0   84    78           78    -6
5    Romilly              2    57.5    5    5.80     0.0   89    95           95    +6
6    Longsword            2    60.0    6    8.10     0.0   80    100          100   +20
7    Coming In Hot        3    59.0    7    15.10    6.0   78    86           86    +8
8    Sail The Sky         4    53.0    8    20.60    3.5   66    79           79    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grand Empire 87 111 87 +24 6.0 -
2 Chieftain's Shield 75 80 90 -10 3.5 -
3 Bloomington Line 71 69 71 -2 6.0
4 Elusive Red 84 76 78 -2 6.0 -
5 Romilly 89 87 95 -8 0.0 -
6 Longsword 80 72 100 -28 0.0 -
7 Coming In Hot 78 76 86 -10 6.0 -
8 Sail The Sky 66 62 79 -17 3.5 -
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