Initial VIPR
3.6730
Registry seed
Current VIPR
3.7152
After latest rated game
Net Movement
+0.0422
Current minus initial
Record
5-3
62% win rate · 8 rated games
Storyline
Janet Artrip entered VIPR with an initial registry rating of 3.6730. Across 8 rated doubles games, the player went 5-3 and moved +0.0422, finishing at 3.7152.
Why It Moved
AI-generated explanation: The 5-3 record produced +0.0518 from wins and -0.0096 from losses, for a net move of +0.0422. The biggest single-game impact was +0.0158 against Carolyn Roan as partner and Tina Stephens / Kathy Gelb as opponents. In game #8 on 2026-10-22, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.5677 vs opponent team 3.7978.
Partner Chemistry
Partnership patterns are starting to emerge.
Janet's most common partner signals so far: Kathy Gelb (1-1, 50%), Brenda Bochtler (1-0, 100%), Carolyn Roan (1-0, 100%), Cindy Hilderbrand (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
Janet has faced Kathy Gelb 4 times - record: 2-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-15 | 1-3 | 3.6730 | 3.6773 | +0.0043 |
| 2026-10-22 | 4-0 | 3.6773 | 3.7152 | +0.0379 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Kathy Gelb | Brenda Bochtler / Diana Sellers | 3.6730 | -0.0025 | 3.6705 |
| 2 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Letti Johnson | Brenda Bochtler / Kathy Gelb | 3.6705 | -0.0034 | 3.6671 |
| 3 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Diana Sellers | Letti Johnson / Kathy Gelb | 3.6671 | -0.0037 | 3.6634 |
| 4 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Brenda Bochtler | Letti Johnson / Diana Sellers | 3.6634 | +0.0139 | 3.6773 |
| 5 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-0 | Tina Stephens | Cindy Hilderbrand / Kathy Gelb | 3.6773 | +0.0067 | 3.6840 |
| 6 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-0 | Kathy Gelb | Cindy Hilderbrand / Carolyn Roan | 3.6840 | +0.0026 | 3.6866 |
| 7 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Cindy Hilderbrand | Tina Stephens / Carolyn Roan | 3.6866 | +0.0128 | 3.6994 |
| 8 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-7 | Carolyn Roan | Tina Stephens / Kathy Gelb | 3.6994 | +0.0158 | 3.7152 |
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 | 3.7594 | 4.0957 | +0.3362 | -0.0025 |
| 2 | 3.8134 | 4.0872 | +0.2738 | -0.0034 |
| 3 | 3.7592 | 4.0165 | +0.2572 | -0.0037 |
| 4 | 3.8816 | 4.0235 | -0.1419 | +0.0139 |
| 5 | 3.6953 | 3.5752 | +0.1201 | +0.0067 |
| 6 | 3.7665 | 3.4369 | +0.3296 | +0.0026 |
| 7 | 3.4849 | 3.5856 | -0.1007 | +0.0128 |
| 8 | 3.5677 | 3.7978 | -0.2301 | +0.0158 |
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 +0.3362 -> computed delta -0.0025; 3.6730 -0.0025 = 3.6705