Official NHA Assessment

Race 5: BETWAY BOOST MR 75 HANDICAP (Open)

Line Horse
Romeo's Magic
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 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    Trois Trois Quatre   5    61.0    1    0.00     0.0   79    77           79    +0
2    Romeo's Magic        7    59.0    2    5.50     0.0   73    73           73    +0
3    Over Two You         3    59.0    3    5.80     9.5   73    54           63    -10
4    Luthuli              5    60.0    4    5.90     0.0   77    75           75    -2
5    Godfather            2    55.5    5    6.40     0.0   68    66           66    -2
6    Silent Trigger       6    59.5    6    6.60     0.0   74    74           74    +0
7    Castle Corner        4    59.5    7    8.35     6.0   74    62           64    -10
8    Johnny Dogs          2    60.5    8    9.85     0.0   78    76           76    -2
9    Elusive Swann        4    59.0    9    10.60    6.0   73    61           63    -10
10   Every Cloud          3    57.0    10   18.35    9.5   76    50           66    -10
11   The Inkosana         3    54.5    11   20.10    9.5   64    45           54    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trois Trois Quatre 79 87 79 +8 0.0 -
2 Romeo's Magic Line 73 73 73 ✓ Match 0.0
3 Over Two You 73 74 63 +11 9.5 -
4 Luthuli 77 74 75 -1 0.0 -
5 Godfather 68 57 66 -9 0.0 -
6 Silent Trigger 74 60 74 -14 0.0 -
7 Castle Corner 74 72 64 +8 6.0 -
8 Johnny Dogs 78 67 76 -9 0.0 -
9 Elusive Swann 73 72 63 +9 6.0 -
10 Every Cloud 76 72 66 +6 9.5 -
11 The Inkosana 64 67 54 +13 9.5 -
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