Official NHA Assessment

Race 4: TRACK & BALL GAMING MR 86 HANDICAP (Open)

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Line Horse
Music Is Life
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 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    Except Temptation    2    57.0    1    0.00     2.0   84    80           84    +0
2    Diani                5    60.5    2    0.80     0.0   90    91           91    +1
3    Dynalley             2    56.0    3    3.60     2.0   82    78           78    -4
4    Music Is Life        2    60.0    4    4.35     2.0   86    86           86    +0
5    Ibutho               7    60.5    5    5.10     0.0   87    91           91    +4
6    Mr Henley            2    59.0    6    7.30     2.0   84    84           84    +0
7    Yamadori             4    60.0    7    9.00     3.5   90    83           83    -7
8    Griffin Park         4    55.0    8    9.60     3.5   80    73           73    -7
9    Kaygee's Delight     4    58.0    9    12.20    3.5   86    79           79    -7
10   Down By The River    2    54.5    10   12.30    2.0   79    75           75    -4
99   Longsword            2    54.5    99   0.00     2.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Except Temptation 84 84 84 ✓ Match 2.0 -
2 Diani 90 96 91 +5 0.0 -
3 Dynalley 82 82 78 +4 2.0 -
4 Music Is Life Line 86 71 86 -15 2.0
5 Ibutho 87 83 91 -8 0.0 -
6 Mr Henley 84 82 84 -2 2.0 -
7 Yamadori 90 97 83 +14 3.5 -
8 Griffin Park 80 58 73 -15 3.5 -
9 Kaygee's Delight 86 89 79 +10 3.5 -
10 Down By The River 79 95 75 +20 2.0 -
99 Longsword - 72 75 -3 2.0 -
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