Official NHA Assessment

Race 7: BETWAY MONEY BACK BOOST MR 90 HANDICAP (Open)

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Line Horse
Alingalonga
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
11 / 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    Brenden James        6    54.5    1    0.00     0.0   79    86           79    +0
2    You Know Who         3    59.0    2    0.50     8.0   88    84           84    -4
3    Sequoia              6    56.5    3    2.00     0.0   83    93           93    +10
4    Alingalonga          4    56.5    4    2.25     5.0   83    83           83    +0
5    Zatara Magic         5    59.5    5    3.00     0.0   90    98           98    +8
6    Carbonado            2    60.5    6    3.25     0.0   92    100          100   +8
7    Son Of Zeus          3    54.5    7    4.50     8.0   79    70           70    -9
8    Greenlighttoheaven   4    60.5    8    5.25     5.0   91    88           88    -3
9    Adios Amigos         4    59.5    9    5.50     5.0   89    86           86    -3
10   Find Me Unafraid     4    63.5    10   6.75     5.0   97    94           94    -3
11   Slings And Arrows    3    58.0    11   8.00     8.0   86    77           77    -9
12   Norton Sound         4    62.0    12   12.75    5.0   94    91           91    -3
13   Emerald Flame        5    52.5    13   28.00    0.0   40    82           82    +42
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brenden James 79 98 79 +19 0.0 -
2 You Know Who 88 91 84 +7 8.0 -
3 Sequoia 83 99 93 +6 0.0 -
4 Alingalonga Line 83 82 83 -1 5.0
5 Zatara Magic 90 114 98 +16 0.0 -
6 Carbonado 92 92 100 -8 0.0 -
7 Son Of Zeus 79 81 70 +11 8.0 -
8 Greenlighttoheaven 91 83 88 -5 5.0 -
9 Adios Amigos 89 55 86 -31 5.0 -
10 Find Me Unafraid 97 85 94 -9 5.0 -
11 Slings And Arrows 86 92 77 +15 8.0 -
12 Norton Sound 94 85 91 -6 5.0 -
13 Emerald Flame 40 35 82 -47 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