Initial VIPR
2.8360
Registry seed
Current VIPR
2.7909
After latest rated game
Net Movement
-0.0451
Current minus initial
Record
6-10
38% win rate · 16 rated games
Storyline
Darleen Obrien entered VIPR with an initial registry rating of 2.8360. Across 16 rated doubles games, the player went 6-10 and moved -0.0451, finishing at 2.7909.
Why It Moved
AI-generated explanation: The 6-10 record produced +0.0524 from wins and -0.0975 from losses, for a net move of -0.0451. The biggest single-game impact was -0.0140 against Deborah Austin as partner and ANN DREWEK / Fern S Reisinger as opponents. In game #4 on 2026-07-09, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.8415 vs opponent team 2.6946.
Partner Chemistry
Partnership patterns are starting to emerge.
Darleen's most common partner signals so far: Debbie Chaffee (1-1, 50%), Beth Arms (0-2, 0%), ANN DREWEK (1-0, 100%), Ann Thiel (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Darleen has faced Beth Arms 4 times - record: 0-4. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 2-2 | 2.8360 | 2.8325 | -0.0035 |
| 2026-09-10 | 1-3 | 2.8325 | 2.8168 | -0.0157 |
| 2026-10-01 | 1-3 | 2.8168 | 2.7991 | -0.0177 |
| 2026-10-29 | 2-2 | 2.7991 | 2.7909 | -0.0082 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-2 | ANN DREWEK | Deborah Austin / Debbie Chaffee | 2.8360 | +0.0130 | 2.8490 |
| 2 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 3-11 | Fern S Reisinger | Debbie Chaffee / ANN DREWEK | 2.8490 | -0.0094 | 2.8396 |
| 3 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-4 | Debbie Chaffee | Deborah Austin / Fern S Reisinger | 2.8396 | +0.0069 | 2.8465 |
| 4 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 7-11 | Deborah Austin | ANN DREWEK / Fern S Reisinger | 2.8465 | -0.0140 | 2.8325 |
| 5 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 7-11 | Kim Johnson | Barbara Amato / Beth Arms | 2.8325 | -0.0103 | 2.8222 |
| 6 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-5 | Diane Polansky | Barbara Amato / Kim Johnson | 2.8222 | +0.0087 | 2.8309 |
| 7 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 3-11 | Beth Arms | Diane Polansky / Kim Johnson | 2.8309 | -0.0071 | 2.8238 |
| 8 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 3-11 | Barbara Amato | Diane Polansky / Beth Arms | 2.8238 | -0.0070 | 2.8168 |
| 9 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Sue Greco | Debbie Chaffee / Beth Arms | 2.8168 | -0.0106 | 2.8062 |
| 10 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 3-11 | Beth Arms | Sue Greco / Ann Thiel | 2.8062 | -0.0084 | 2.7978 |
| 11 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-9 | Ann Thiel | Debbie Chaffee / Sue Greco | 2.7978 | +0.0087 | 2.8065 |
| 12 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Debbie Chaffee | Beth Arms / Ann Thiel | 2.8065 | -0.0074 | 2.7991 |
| 13 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Jacqueline Leonard | Kim Held / Tracy Klevesahl | 2.7991 | +0.0061 | 2.8052 |
| 14 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Wendy Bachman | Jacqueline Leonard / Kim Held | 2.8052 | +0.0090 | 2.8142 |
| 15 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Kim Held | Tracy Klevesahl / Wendy Bachman | 2.8142 | -0.0133 | 2.8009 |
| 16 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 7-11 | Tracy Klevesahl | Jacqueline Leonard / Wendy Bachman | 2.8009 | -0.0100 | 2.7909 |
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 | 2.7506 | 2.8575 | -0.1069 | +0.0130 |
| 2 | 2.7398 | 2.7620 | +0.0222 | -0.0094 |
| 3 | 2.8437 | 2.7324 | +0.1113 | +0.0069 |
| 4 | 2.8415 | 2.6946 | -0.1469 | -0.0140 |
| 5 | 2.8530 | 2.8427 | -0.0102 | -0.0103 |
| 6 | 2.9027 | 2.8588 | +0.0439 | +0.0087 |
| 7 | 2.8430 | 2.9469 | +0.1039 | -0.0071 |
| 8 | 2.8276 | 2.9368 | +0.1092 | -0.0070 |
| 9 | 2.8247 | 2.8023 | -0.0223 | -0.0106 |
| 10 | 2.8214 | 2.8775 | +0.0562 | -0.0084 |
| 11 | 2.8588 | 2.8121 | +0.0467 | +0.0087 |
| 12 | 2.7986 | 2.8899 | +0.0913 | -0.0074 |
| 13 | 2.6818 | 2.5369 | +0.1449 | +0.0061 |
| 14 | 2.6414 | 2.6069 | +0.0345 | +0.0090 |
| 15 | 2.6501 | 2.5327 | -0.1174 | -0.0133 |
| 16 | 2.6083 | 2.6075 | -0.0008 | -0.0100 |
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 -0.1069 -> computed delta +0.0130; 2.8360 +0.0130 = 2.8490