Official NHA Assessment

Race 4: COME WATCH RUGBY FINAL AT TURFFONTEIN 28 OCTOBER MR 76 HANDICAP (Open)

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Line Horse
Romeo's Magic
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
5 / 10
Within 2 points
Significant Diffs
3 / 10
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    Dungeons             2    57.0    1    0.00     0.0   72    67           72    +0
2    Greenlight Magic     2    59.0    2    0.25     0.0   76    71           71    -5
3    Romeo's Magic        7    58.5    3    1.50     0.0   73    73           73    +0
4    Silvano's Song       3    57.5    4    2.00     9.0   73    53           63    -10
5    Brotherhoodofmagic   2    53.0    5    2.75     0.0   80    61           70    -10
6    Viva Brazil          3    56.0    6    2.85     9.0   86    49           76    -10
7    Pewter Sky           3    60.5    7    3.00     9.0   77    58           67    -10
8    Bronze Sword         3    58.0    8    4.00     9.0   74    52           64    -10
9    Libeccio             5    54.5    9    5.25     0.0   67    62           62    -5
10   London Roads         3    58.0    10   23.00    9.0   80    51           70    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dungeons 72 73 72 +1 0.0 -
2 Greenlight Magic 76 74 71 +3 0.0 -
3 Romeo's Magic Line 73 73 73 ✓ Match 0.0
4 Silvano's Song 73 74 63 +11 9.0 -
5 Brotherhoodofmagic 80 68 70 -2 0.0 -
6 Viva Brazil 86 94 76 +18 9.0 -
7 Pewter Sky 77 71 67 +4 9.0 -
8 Bronze Sword 74 66 64 +2 9.0 -
9 Libeccio 67 62 62 ✓ Match 0.0 -
10 London Roads 80 78 70 +8 9.0 -
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