Initial VIPR
3.9650
Registry seed
Current VIPR
3.9593
After latest rated game
Net Movement
-0.0057
Current minus initial
Record
7-5
58% win rate · 12 rated games
Storyline
Kathy Gelb entered VIPR with an initial registry rating of 3.9650. Across 12 rated doubles games, the player went 7-5 and moved -0.0057, finishing at 3.9593.
Why It Moved
AI-generated explanation: The record was positive, but the rating dipped because the 7 wins added +0.0351 while the 5 loss(es) gave back -0.0408. The biggest single-game impact was -0.0158 against Tina Stephens as partner and Janet Artrip / Carolyn Roan as opponents. In game #8 on 2026-10-22, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.7978 vs opponent team 3.5677.
Partner Chemistry
Partnership patterns are starting to emerge.
Kathy's most common partner signals so far: Carolyn Roan (2-0, 100%), Janet Artrip (1-1, 50%), Brenda Bochtler (1-0, 100%), Jackie Elliott (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
Kathy has faced Carolyn Roan 4 times - record: 3-1. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-15 | 2-2 | 3.9650 | 3.9657 | +0.0007 |
| 2026-10-22 | 2-2 | 3.9657 | 3.9521 | -0.0136 |
| 2026-10-29 | 3-1 | 3.9521 | 3.9593 | +0.0072 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 2-11 | Diana Sellers | Letti Johnson / Brenda Bochtler | 3.9650 | -0.0039 | 3.9611 |
| 2 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Janet Artrip | Brenda Bochtler / Diana Sellers | 3.9611 | -0.0025 | 3.9586 |
| 3 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Brenda Bochtler | Letti Johnson / Janet Artrip | 3.9586 | +0.0034 | 3.9620 |
| 4 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-8 | Letti Johnson | Diana Sellers / Janet Artrip | 3.9620 | +0.0037 | 3.9657 |
| 5 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 0-11 | Cindy Hilderbrand | Tina Stephens / Janet Artrip | 3.9657 | -0.0067 | 3.9590 |
| 6 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-0 | Janet Artrip | Cindy Hilderbrand / Carolyn Roan | 3.9590 | +0.0026 | 3.9616 |
| 7 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Carolyn Roan | Tina Stephens / Cindy Hilderbrand | 3.9616 | +0.0063 | 3.9679 |
| 8 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 7-11 | Tina Stephens | Janet Artrip / Carolyn Roan | 3.9679 | -0.0158 | 3.9521 |
| 9 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-3 | Lori Linklater | Jackie Elliott / Carolyn Roan | 3.9521 | +0.0058 | 3.9579 |
| 10 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 4-11 | Natalie Abrams | Lori Linklater / Jackie Elliott | 3.9579 | -0.0119 | 3.9460 |
| 11 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Jackie Elliott | Carolyn Roan / Natalie Abrams | 3.9460 | +0.0051 | 3.9511 |
| 12 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-7 | Carolyn Roan | Lori Linklater / Natalie Abrams | 3.9511 | +0.0082 | 3.9593 |
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 | 3.9682 | 4.2144 | +0.2462 | -0.0039 |
| 2 | 3.7594 | 4.0957 | +0.3362 | -0.0025 |
| 3 | 4.0872 | 3.8134 | +0.2738 | +0.0034 |
| 4 | 4.0165 | 3.7592 | +0.2572 | +0.0037 |
| 5 | 3.5752 | 3.6953 | +0.1201 | -0.0067 |
| 6 | 3.7665 | 3.4369 | +0.3296 | +0.0026 |
| 7 | 3.6419 | 3.5073 | +0.1346 | +0.0063 |
| 8 | 3.7978 | 3.5677 | -0.2301 | -0.0158 |
| 9 | 3.7175 | 3.5630 | +0.1545 | +0.0058 |
| 10 | 3.6964 | 3.6310 | -0.0654 | -0.0119 |
| 11 | 3.7328 | 3.5448 | +0.1880 | +0.0051 |
| 12 | 3.6548 | 3.5910 | +0.0638 | +0.0082 |
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 +0.2462 -> computed delta -0.0039; 3.9650 -0.0039 = 3.9611