Official NHA Assessment

Race 2: TAB TELEBET 0861 000 822 MAIDEN PLATE (F & M) (For Maiden (F&M) R15 000 Win Bonus ROA Members)

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Line Horse
Rainbow River
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
6 / 12
Within 2 points
Significant Diffs
5 / 12
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    Rainbow River        3    60.0    1    0.00     7.0   68    68           68    +0
2    Genteel              3    58.0    2    0.75     7.0   -     68           68    +68
3    Fire Alarm           3    58.0    3    1.25     7.0   -     68           68    +68
4    Laugh Till I Cry     3    58.0    4    4.50     7.0   75    64           65    -10
5    Burn Bright          3    58.0    5    8.75     7.0   -     64           64    +64
6    Ruby Claire          3    58.0    6    9.05     7.0   76    64           66    -10
7    Lady Theia           2    58.0    7    9.80     0.0   63    78           78    +15
8    Fire Festival        2    56.5    8    12.05    0.0   69    75           75    +6
9    Million Reasons      3    58.0    9    16.80    7.0   77    64           67    -10
10   Poise Panache        6    60.0    10   18.05    0.0   -     82           82    +82
11   Carved In Stone      4    57.5    11   19.55    4.5   40    68           68    +28
12   Take Your Time       3    55.5    12   22.05    7.0   58    59           59    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rainbow River Line 68 66 68 -2 7.0
2 Genteel - 68 68 ✓ Match 7.0 -
3 Fire Alarm - 70 68 +2 7.0 -
4 Laugh Till I Cry 75 63 65 -2 7.0 -
5 Burn Bright - 68 64 +4 7.0 -
6 Ruby Claire 76 52 66 -14 7.0 -
7 Lady Theia 63 53 78 -25 0.0 -
8 Fire Festival 69 56 75 -19 0.0 -
9 Million Reasons 77 66 67 -1 7.0 -
10 Poise Panache - 40 82 -42 0.0 -
11 Carved In Stone 40 41 68 -27 4.5 -
12 Take Your Time 58 60 59 +1 7.0 -
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