Official NHA Assessment

Race 4: TABGOLD SCORE6 SCORE10 MR 70 HANDICAP (Open)

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Line Horse
Trafalgar Square
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
6 / 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    Valiente             5    60.5    1    0.00     0.0   71    71           71    +0
2    Trafalgar Square     6    58.5    2    1.80     0.0   67    67           67    +0
3    The Gliding Fish     6    60.0    3    3.20     0.0   70    70           70    +0
4    Georgie George       3    56.5    4    3.45     2.5   63    58           58    -5
5    Eddie The Mover      2    61.5    5    3.75     1.5   76    70           70    -6
6    Phinda Mzala         4    57.0    6    4.55     0.0   64    64           64    +0
7    Sea Vista            2    57.5    7    4.85     1.5   71    62           62    -9
8    Magwinya             2    60.0    8    6.15     1.5   73    67           67    -6
9    Bless Me Fred        6    58.5    9    6.55     0.0   70    67           67    -3
10   Impartial            4    52.5    10   7.55     0.0   55    55           55    +0
11   Cotton Ron           6    56.0    11   9.55     0.0   62    62           62    +0
12   Life Goes On         7    55.5    12   11.55    0.0   60    61           61    +1
99   Purple Operator      3    62.0    99   0.00     2.5   -     69           69    +0
99   Time Together        3    61.5    99   0.00     2.5   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Valiente 71 75 71 +4 0.0 -
2 Trafalgar Square Line 67 69 67 +2 0.0
3 The Gliding Fish 70 68 70 -2 0.0 -
4 Georgie George 63 63 58 +5 2.5 -
5 Eddie The Mover 76 76 70 +6 1.5 -
6 Phinda Mzala 64 54 64 -10 0.0 -
7 Sea Vista 71 83 62 +21 1.5 -
8 Magwinya 73 50 67 -17 1.5 -
9 Bless Me Fred 70 62 67 -5 0.0 -
10 Impartial 55 50 55 -5 0.0 -
11 Cotton Ron 62 59 62 -3 0.0 -
12 Life Goes On 60 54 61 -7 0.0 -
99 Purple Operator - 74 69 +5 2.5 -
99 Time Together - 81 68 +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