Initial VIPR
3.9530
Registry seed
Current VIPR
3.9333
After latest rated game
Net Movement
-0.0197
Current minus initial
Record
3-5
38% win rate · 8 rated games
Storyline
Sue Dahl entered VIPR with an initial registry rating of 3.9530. Across 8 rated doubles games, the player went 3-5 and moved -0.0197, finishing at 3.9333.
Why It Moved
AI-generated explanation: The 3-5 record produced +0.0283 from wins and -0.0480 from losses, for a net move of -0.0197. The biggest single-game impact was -0.0120 against Erin DeFrates as partner and Nancy OBrien / Barb O'Connor as opponents. In game #4 on 2026-10-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.7713 vs opponent team 3.7026.
Partner Chemistry
Partnership patterns are starting to emerge.
Sue's most common partner signals so far: Erin DeFrates (1-1, 50%), Gene Konzen (1-1, 50%), Tony Birchall (1-1, 50%), Doug Kellogg (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Sue has faced Nancy OBrien 4 times - record: 1-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 1-3 | 3.9530 | 3.9313 | -0.0217 |
| 2026-10-20 | 2-2 | 3.9313 | 3.9333 | +0.0020 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 16-21 | Tony Birchall | Nancy OBrien / Mike Fritz | 3.9530 | -0.0101 | 3.9429 |
| 2 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 19-21 | Tom Hertz | Nancy OBrien / Chris Eversole | 3.9429 | -0.0095 | 3.9334 |
| 3 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-17 | Gene Konzen | Nancy OBrien / Stephen Bussey | 3.9334 | +0.0099 | 3.9433 |
| 4 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 17-21 | Erin DeFrates | Nancy OBrien / Barb O'Connor | 3.9433 | -0.0120 | 3.9313 |
| 5 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 22-20 | Erin DeFrates | Mary Seifert / Sandy Zutter | 3.9313 | +0.0083 | 3.9396 |
| 6 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 15-21 | Doug Kellogg | Mary Seifert / Greg Dodge | 3.9396 | -0.0089 | 3.9307 |
| 7 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 14-21 | Gene Konzen | Mary Seifert / Paul Randour | 3.9307 | -0.0075 | 3.9232 |
| 8 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 21-12 | Tony Birchall | Mary Seifert / Douglas Starn | 3.9232 | +0.0101 | 3.9333 |
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 | 3.9671 | 3.9638 | -0.0033 | -0.0101 |
| 2 | 4.0663 | 4.0820 | +0.0158 | -0.0095 |
| 3 | 3.9668 | 3.9629 | +0.0038 | +0.0099 |
| 4 | 3.7713 | 3.7026 | -0.0687 | -0.0120 |
| 5 | 3.7593 | 3.6986 | +0.0607 | +0.0083 |
| 6 | 4.0370 | 4.0744 | +0.0374 | -0.0089 |
| 7 | 3.9699 | 4.0593 | +0.0894 | -0.0075 |
| 8 | 3.9429 | 3.9464 | -0.0036 | +0.0101 |
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 -0.0033 -> computed delta -0.0101; 3.9530 -0.0101 = 3.9429