Official NHA Assessment

Race 7: WWW.TAB4RACING.COM MR 80 HANDICAP (Open)

Back to Race
Line Horse
Purpleninjaturtle
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Vegas Hi Rise        6    57.5    1    0.00     0.0   75    99           75    +0
2    Warm Winter Nite     2    55.5    2    0.50     7.0   71    81           81    +10
3    Purpleninjaturtle    4    61.5    3    1.10     12.0  83    83           83    +0
4    Second Breath        2    60.5    4    2.50     7.0   81    91           91    +10
5    Munchkin             5    58.0    5    5.75     0.0   76    100          100   +24
6    Spirited Girl        4    55.5    6    6.25     12.0  76    71           71    -5
7    Phala Millions       4    56.0    7    6.75     12.0  77    72           72    -5
8    Houston              3    55.5    8    7.50     10.5  71    74           74    +3
9    Global Thunder       4    59.0    9    9.25     12.0  86    78           78    -8
10   Lulu's Boy           5    56.5    10   11.25    0.0   73    97           97    +24
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vegas Hi Rise 75 71 75 -4 0.0 -
2 Warm Winter Nite 71 92 81 +11 7.0 -
3 Purpleninjaturtle Line 83 78 83 -5 12.0
4 Second Breath 81 79 91 -12 7.0 -
5 Munchkin 76 65 100 -35 0.0 -
6 Spirited Girl 76 61 71 -10 12.0 -
7 Phala Millions 77 66 72 -6 12.0 -
8 Houston 71 69 74 -5 10.5 -
9 Global Thunder 86 83 78 +5 12.0 -
10 Lulu's Boy 73 71 97 -26 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