Storyline
Nancy Grzesiek entered VIPR with an initial registry rating of 3.5100. Across 10 rated doubles games, the player went 1-9 and moved -0.0785, finishing at 3.4315.
Why It Moved
AI-generated explanation: The 1-9 record produced +0.0084 from wins and -0.0869 from losses, for a net move of -0.0785. The biggest single-game impact was -0.0116 against Ann Moreland as partner and Lisa Dreier / Jennifer Hill as opponents. In game #1 on 2026-07-02, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.5124 vs opponent team 3.4555.
Partnership patterns are starting to emerge.
Nancy's most common partner signals so far: Jennifer Hill (1-0, 100%), Ann Moreland (0-1, 0%), Cindy Hilderbrand (0-1, 0%), Janice Czerwinski (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Nancy is currently on a 8-game losing streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-1 | 3.5100 | 3.5068 | -0.0032 |
| 2026-08-06 | 0-4 | 3.5068 | 3.4720 | -0.0348 |
| 2026-10-29 | 0-4 | 3.4720 | 3.4315 | -0.0405 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 9-11 | Ann Moreland | Lisa Dreier / Jennifer Hill | 3.5100 | -0.0116 | 3.4984 |
| 2 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-2 | Jennifer Hill | Lisa Dreier / Jean Narod | 3.4984 | +0.0084 | 3.5068 |
| 3 | 2026-08-06 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 1-11 | Sally Musser | Stacey Cellini / Michele Blanchard | 3.5068 | -0.0069 | 3.4999 |
| 4 | 2026-08-06 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 5-11 | Michele Blanchard | Sally Musser / Jeanan Delp | 3.4999 | -0.0108 | 3.4891 |
| 5 | 2026-08-06 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 9-11 | Jeanan Delp | Stacey Cellini / Sally Musser | 3.4891 | -0.0070 | 3.4821 |
| 6 | 2026-08-06 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 2-11 | Stacey Cellini | Michele Blanchard / Jeanan Delp | 3.4821 | -0.0101 | 3.4720 |
| 7 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Suzie Dunn | Janice Czerwinski / Melissa Terhark | 3.4720 | -0.0089 | 3.4631 |
| 8 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Melissa Terhark | Suzie Dunn / Cindy Hilderbrand | 3.4631 | -0.0116 | 3.4515 |
| 9 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 2-11 | Cindy Hilderbrand | Janice Czerwinski / Suzie Dunn | 3.4515 | -0.0089 | 3.4426 |
| 10 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Janice Czerwinski | Melissa Terhark / Cindy Hilderbrand | 3.4426 | -0.0111 | 3.4315 |
Formula Homework
These rows show the team ratings used in the adjustment calculation. The computed delta is the signed rating change produced by the current v0.6 formula.
| # | Player Team ( AVG ) | Opponent Team ( AVG ) | Winner-Loser VIPR Diff | Computed Delta |
|---|---|---|---|---|
| 1 | 3.5124 | 3.4555 | -0.0569 | -0.0116 |
| 2 | 3.4789 | 3.4225 | +0.0565 | +0.0084 |
| 3 | 3.5290 | 3.6402 | +0.1112 | -0.0069 |
| 4 | 3.5423 | 3.5130 | -0.0292 | -0.0108 |
| 5 | 3.4952 | 3.6029 | +0.1078 | -0.0070 |
| 6 | 3.5413 | 3.5373 | -0.0041 | -0.0101 |
| 7 | 3.4587 | 3.4966 | +0.0379 | -0.0089 |
| 8 | 3.4729 | 3.4167 | -0.0562 | -0.0116 |
| 9 | 3.4343 | 3.4732 | +0.0389 | -0.0089 |
| 10 | 3.4740 | 3.4348 | -0.0391 | -0.0111 |
Rating movement formula
Team VIPR = average - (average - lower partner) * CRF, with CRF = 0.40.
Adjustment = 0.02 / (1 + 10 ^ (2.5 * (winner team VIPR - loser team VIPR))).
Winning partners both receive +adjustment. Losing partners both receive -adjustment.
Score margin is recorded for context but is not currently part of the v0.6 formula.
First game check: winner-loser VIPR diff -0.0569 -> computed delta -0.0116; 3.5100 -0.0116 = 3.4984