Official NHA Assessment

Race 5: RACING240 FOR RACING. FOR YOU MR 68 HANDICAP (Open)

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Line Horse
Slainte Mhath
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 9
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    San Quintin          6    54.0    1    0.00     0.0   56    65           56    +0
2    Head Gardener        3    55.0    2    1.00     9.5   57    54           54    -3
3    Slainte Mhath        4    59.5    3    2.25     6.0   69    69           69    +0
4    Crystal Maiden       4    62.0    4    2.50     6.0   74    73           73    -1
5    Maldano              3    56.5    5    2.75     9.5   63    54           54    -9
6    Walt Whitman         2    61.0    6    4.50     0.0   89    80           80    -9
7    'O Captain           2    51.5    7    8.25     0.0   56    60           60    +4
8    The Inkosana         3    60.0    8    12.00    9.5   68    58           58    -10
99   San Marzano          3    52.5    99   0.00     9.5   -     43           43    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 San Quintin 56 58 56 +2 0.0 -
2 Head Gardener 57 66 54 +12 9.5 -
3 Slainte Mhath Line 69 81 69 +12 6.0
4 Crystal Maiden 74 66 73 -7 6.0 -
5 Maldano 63 60 54 +6 9.5 -
6 Walt Whitman 89 88 80 +8 0.0 -
7 'O Captain 56 52 60 -8 0.0 -
8 The Inkosana 68 67 58 +9 9.5 -
99 San Marzano - 53 43 +10 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