Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION FM 82 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Variety Breeze
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 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    Tipsy Tina           2    53.5    1    0.00     3.0   75    73           75    +0
2    Angel Deb's          3    56.5    2    2.25     4.5   75    76           76    +1
3    Delicasea            4    58.0    3    2.35     5.0   78    78           78    +0
4    Variety Breeze       4    58.0    4    2.60     5.0   78    78           78    +0
5    I Like It Hot        2    53.0    5    2.70     3.0   74    72           72    -2
6    Princess Deb's       3    60.5    6    5.45     4.5   83    84           84    +1
7    Rainbow Thief        2    57.5    7    7.45     3.0   83    81           81    -2
8    Mur Mur              2    53.5    8    9.70     3.0   75    73           73    -2
99   Time Chaser          2    52.5    99   0.00     3.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tipsy Tina 75 91 75 +16 3.0 -
2 Angel Deb's 75 78 76 +2 4.5 -
3 Delicasea 78 74 78 -4 5.0 -
4 Variety Breeze Line 78 62 78 -16 5.0
5 I Like It Hot 74 76 72 +4 3.0 -
6 Princess Deb's 83 80 84 -4 4.5 -
7 Rainbow Thief 83 71 81 -10 3.0 -
8 Mur Mur 75 68 73 -5 3.0 -
99 Time Chaser - 65 71 -6 3.0 -
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