Storyline
Diana Sellers entered VIPR with an initial registry rating of 3.9880. Across 16 rated doubles games, the player went 6-10 and moved -0.0589, finishing at 3.9291.
Why It Moved
AI-generated explanation: The 6-10 record produced +0.0374 from wins and -0.0963 from losses, for a net move of -0.0589. The biggest single-game impact was -0.0153 against Beth Walker as partner and Sue Reich / Kim Christopherson as opponents. In game #11 on 2026-10-22, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.9944 vs opponent team 3.7877.
Partnership patterns are starting to emerge.
Diana's most common partner signals so far: Kim Christopherson (2-2, 50%), Sue Reich (1-1, 50%), Brenda Bochtler (1-0, 100%), Kelly Armagost (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Diana has faced Kim Christopherson 6 times - record: 2-4. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-01 | 2-2 | 3.9880 | 3.9756 | -0.0124 |
| 2026-10-15 | 1-3 | 3.9756 | 3.9566 | -0.0190 |
| 2026-10-22 | 2-2 | 3.9566 | 3.9568 | +0.0002 |
| 2026-10-29 | 1-3 | 3.9568 | 3.9291 | -0.0277 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Kim Christopherson | Tina Stephens / Carolyn Roan | 3.9880 | +0.0045 | 3.9925 |
| 2 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Jolynne Colvin | Kim Christopherson / Tina Stephens | 3.9925 | -0.0100 | 3.9825 |
| 3 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-3 | Tina Stephens | Carolyn Roan / Jolynne Colvin | 3.9825 | +0.0038 | 3.9863 |
| 4 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 9-11 | Carolyn Roan | Kim Christopherson / Jolynne Colvin | 3.9863 | -0.0107 | 3.9756 |
| 5 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 2-11 | Kathy Gelb | Letti Johnson / Brenda Bochtler | 3.9756 | -0.0039 | 3.9717 |
| 6 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-6 | Brenda Bochtler | Kathy Gelb / Janet Artrip | 3.9717 | +0.0025 | 3.9742 |
| 7 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Janet Artrip | Letti Johnson / Kathy Gelb | 3.9742 | -0.0037 | 3.9705 |
| 8 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Letti Johnson | Brenda Bochtler / Janet Artrip | 3.9705 | -0.0139 | 3.9566 |
| 9 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Kim Christopherson | Beth Walker / Sue Reich | 3.9566 | -0.0069 | 3.9497 |
| 10 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-2 | Sue Reich | Beth Walker / Kim Christopherson | 3.9497 | +0.0088 | 3.9585 |
| 11 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Beth Walker | Sue Reich / Kim Christopherson | 3.9585 | -0.0153 | 3.9432 |
| 12 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-4 | Kim Christopherson | Beth Walker / Sue Reich | 3.9432 | +0.0136 | 3.9568 |
| 13 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Sue Reich | Kelly Armagost / Kim Christopherson | 3.9568 | -0.0126 | 3.9442 |
| 14 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Eveline Norman | Sue Reich / Kelly Armagost | 3.9442 | -0.0059 | 3.9383 |
| 15 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-3 | Kelly Armagost | Kim Christopherson / Eveline Norman | 3.9383 | +0.0042 | 3.9425 |
| 16 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 9-11 | Kim Christopherson | Sue Reich / Eveline Norman | 3.9425 | -0.0134 | 3.9291 |
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 | 3.8151 | 3.5995 | +0.2156 | +0.0045 |
| 2 | 3.7280 | 3.7274 | -0.0006 | -0.0100 |
| 3 | 3.8082 | 3.5558 | +0.2524 | +0.0038 |
| 4 | 3.6676 | 3.6446 | -0.0230 | -0.0107 |
| 5 | 3.9682 | 4.2144 | +0.2462 | -0.0039 |
| 6 | 4.0957 | 3.7594 | +0.3362 | +0.0025 |
| 7 | 3.7592 | 4.0165 | +0.2572 | -0.0037 |
| 8 | 4.0235 | 3.8816 | -0.1419 | -0.0139 |
| 9 | 3.8205 | 3.9318 | +0.1113 | -0.0069 |
| 10 | 3.8975 | 3.8548 | +0.0428 | +0.0088 |
| 11 | 3.9944 | 3.7877 | -0.2066 | -0.0153 |
| 12 | 3.8162 | 3.9484 | -0.1321 | +0.0136 |
| 13 | 3.9070 | 3.8134 | -0.0936 | -0.0126 |
| 14 | 3.7371 | 3.8887 | +0.1516 | -0.0059 |
| 15 | 3.9206 | 3.6884 | +0.2322 | +0.0042 |
| 16 | 3.8368 | 3.7127 | -0.1241 | -0.0134 |
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 +0.2156 -> computed delta +0.0045; 3.9880 +0.0045 = 3.9925