Official NHA Assessment

Race 3: BOOK A TABLE CALL 011 681 1796 MR 74 HANDICAP (Open)

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Line Horse
Rosy Lemon
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
5 / 13
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    Little Prince        3    58.5    1    0.00     8.0   71    50           71    +0
2    Romeo's Magic        7    59.5    2    0.10     0.0   73    68           68    -5
3    Rosy Lemon           5    56.0    3    1.00     0.0   67    67           67    +0
4    Viva Brazil          3    58.0    4    1.10     8.0   86    55           76    -10
5    Monsieur Chevelle    3    55.0    5    2.20     8.0   64    48           54    -10
6    Nuclear Force        5    52.5    6    2.30     0.0   63    58           58    -5
7    Libeccio             5    54.0    7    2.40     0.0   63    61           61    -2
8    Coromandel           4    55.0    8    3.00     4.5   64    53           54    -10
9    The Inkosana         3    54.5    9    6.25     8.0   63    42           53    -10
10   Indian War Dance     3    52.0    10   7.00     8.0   58    37           48    -10
11   Corapi               3    52.0    11   7.75     8.0   53    37           43    -10
12   Fifth Of July        5    56.5    12   9.75     0.0   67    62           62    -5
13   Kambulu              3    60.5    13   20.75    8.0   76    54           66    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Little Prince 71 73 71 +2 8.0 -
2 Romeo's Magic 73 73 68 +5 0.0 -
3 Rosy Lemon Line 67 72 67 +5 0.0
4 Viva Brazil 86 94 76 +18 8.0 -
5 Monsieur Chevelle 64 63 54 +9 8.0 -
6 Nuclear Force 63 61 58 +3 0.0 -
7 Libeccio 63 62 61 +1 0.0 -
8 Coromandel 64 59 54 +5 4.5 -
9 The Inkosana 63 67 53 +14 8.0 -
10 Indian War Dance 58 58 48 +10 8.0 -
11 Corapi 53 67 43 +24 8.0 -
12 Fifth Of July 67 63 62 +1 0.0 -
13 Kambulu 76 64 66 -2 8.0 -
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