Official NHA Assessment

Race 3: CITIZEN MR 104 HANDICAP (Open)

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Line Horse
Leopold
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Indlamu              4    53.5    1    0.00     1.0   94    84           94    +0
2    City By The Sea      4    52.0    2    0.05     1.0   88    81           81    -7
3    Leopold              5    53.5    3    0.60     0.0   91    91           91    +0
4    Willow Express       7    58.5    4    1.60     0.0   101   99           99    -2
5    Theory Of Flight     4    55.5    5    1.75     1.0   95    91           91    -4
6    Irish Tractor        4    55.5    6    2.00     1.0   95    91           91    -4
7    Fight Song           4    53.0    7    2.40     1.0   90    85           85    -5
8    Tierra Del Fuego     6    60.5    8    4.50     0.0   105   100          100   -5
9    Youcanthurrylove     5    59.0    9    7.00     0.0   105   97           97    -8
10   Back To Black        4    53.0    10   9.00     1.0   90    83           83    -7
99   Noble Striker        3    55.5    99   0.00     2.5   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Indlamu 94 86 94 -8 1.0 -
2 City By The Sea 88 74 81 -7 1.0 -
3 Leopold Line 91 79 91 -12 0.0
4 Willow Express 101 82 99 -17 0.0 -
5 Theory Of Flight 95 91 91 ✓ Match 1.0 -
6 Irish Tractor 95 102 91 +11 1.0 -
7 Fight Song 90 94 85 +9 1.0 -
8 Tierra Del Fuego 105 104 100 +4 0.0 -
9 Youcanthurrylove 105 86 97 -11 0.0 -
10 Back To Black 90 89 83 +6 1.0 -
99 Noble Striker - 98 85 +13 2.5 -
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