Official NHA Assessment

Race 5: CAPE SUMMER SEASON OF CHAMPIONS CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Lindbergh
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
7 / 14
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    Quatermain           2    56.0    1    0.00     0.0   70    76           76    +6
2    Prevalence           3    60.5    2    0.20     5.0   79    75           75    -4
3    Lindbergh            2    60.5    3    0.95     0.0   89    89           89    +0
4    Naushon              3    57.0    4    2.70     5.0   72    70           70    -2
5    Big Unit             3    56.5    5    3.70     5.0   81    68           71    -10
6    Luce Verde           2    57.5    6    4.20     0.0   83    80           80    -3
7    Coastal Commander    4    59.5    7    4.25     2.5   87    79           79    -8
8    Prime Venture        3    58.0    8    4.65     5.0   84    70           74    -10
9    Royal Swan Master    3    57.5    9    6.90     5.0   83    69           73    -10
10   Spirit's Unite       2    54.0    10   7.30     0.0   76    72           72    -4
11   Radicchio            5    57.0    11   7.50     0.0   72    78           78    +6
12   No Apologies         2    59.0    12   8.25     0.0   86    82           82    -4
13   Master Of Paris      4    53.0    13   8.75     2.5   74    65           65    -9
99   Oliver               5    59.5    99   0.00     0.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quatermain 70 79 76 +3 0.0 -
2 Prevalence 79 83 75 +8 5.0 -
3 Lindbergh Line 89 85 89 -4 0.0
4 Naushon 72 68 70 -2 5.0 -
5 Big Unit 81 84 71 +13 5.0 -
6 Luce Verde 83 98 80 +18 0.0 -
7 Coastal Commander 87 77 79 -2 2.5 -
8 Prime Venture 84 78 74 +4 5.0 -
9 Royal Swan Master 83 83 73 +10 5.0 -
10 Spirit's Unite 76 70 72 -2 0.0 -
11 Radicchio 72 100 78 +22 0.0 -
12 No Apologies 86 83 82 +1 0.0 -
13 Master Of Paris 74 87 65 +22 2.5 -
99 Oliver - 97 83 +14 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