Official NHA Assessment

Race 6: RACING240 FOR RACING. FOR YOU MR 75 HANDICAP (Open)

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Line Horse
Robert Burns
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 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    Princess Ilaria      5    59.5    1    0.00     0.0   74    79           74    +0
2    Robert Burns         3    60.0    2    1.50     4.0   75    75           75    +0
3    Work Of Time         2    60.0    3    1.75     0.0   83    83           83    +0
4    Written In Stone     9    52.0    4    2.00     0.0   56    67           67    +11
5    Viva De Janeiro      5    55.0    5    3.25     0.0   65    72           72    +7
6    Munchkin             5    55.5    6    3.30     0.0   74    72           72    -2
7    Arividicio           5    60.0    7    5.30     0.0   75    80           80    +5
8    Mariachi Madness     2    58.0    8    6.00     0.0   79    76           76    -3
9    Ode To The Ocean     2    57.0    9    10.25    0.0   77    74           74    -3
10   Never To Clever      4    54.5    10   99.99    2.0   64    65           65    +1
99   Circus Lights        5    56.0    99   0.00     0.0   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Princess Ilaria 74 79 74 +5 0.0 -
2 Robert Burns Line 75 71 75 -4 4.0
3 Work Of Time 83 75 83 -8 0.0 -
4 Written In Stone 56 67 67 ✓ Match 0.0 -
5 Viva De Janeiro 65 50 72 -22 0.0 -
6 Munchkin 74 65 72 -7 0.0 -
7 Arividicio 75 50 80 -30 0.0 -
8 Mariachi Madness 79 57 76 -19 0.0 -
9 Ode To The Ocean 77 62 74 -12 0.0 -
10 Never To Clever 64 64 65 -1 2.0 -
99 Circus Lights - 64 72 -8 0.0 -
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