Official NHA Assessment

Race 4: 4RACING.TV MR 68 HANDICAP (Open)

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Line Horse
Flinders Range
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Blonde Act           3    60.5    1    0.00     7.0   69    66           69    +0
2    Track Commander      4    56.5    2    0.10     4.0   61    64           64    +3
3    Flinders Range       3    56.0    3    1.35     7.0   60    60           60    +0
4    Jaspero              4    57.0    4    2.10     4.0   62    68           68    +6
5    Light Without        4    55.5    5    3.35     4.0   59    63           63    +4
6    Suryavarman          2    57.0    6    3.85     0.0   76    74           74    -2
7    Essos                4    59.5    7    6.10     4.0   67    70           70    +3
8    Grand Destiny        3    53.0    8    11.35    7.0   54    51           51    -3
9    Honest Quest         2    57.0    9    13.85    0.0   76    73           73    -3
10   Royal Shindig        4    62.0    10   14.10    4.0   72    75           75    +3
11   Bit Of Fun           4    55.5    11   27.35    4.0   59    62           62    +3
99   Ivalo's Prince       5    61.5    99   0.00     0.0   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Blonde Act 69 96 69 +27 7.0 -
2 Track Commander 61 66 64 +2 4.0 -
3 Flinders Range Line 60 71 60 +11 7.0
4 Jaspero 62 76 68 +8 4.0 -
5 Light Without 59 71 63 +8 4.0 -
6 Suryavarman 76 84 74 +10 0.0 -
7 Essos 67 65 70 -5 4.0 -
8 Grand Destiny 54 55 51 +4 7.0 -
9 Honest Quest 76 58 73 -15 0.0 -
10 Royal Shindig 72 62 75 -13 4.0 -
11 Bit Of Fun 59 53 62 -9 4.0 -
99 Ivalo's Prince - 62 82 -20 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