Initial VIPR
3.7190
Registry seed
Current VIPR
3.7091
After latest rated game
Net Movement
-0.0099
Current minus initial
Record
4-4
50% win rate · 8 rated games
Storyline
Tina Stephens entered VIPR with an initial registry rating of 3.7190. Across 8 rated doubles games, the player went 4-4 and moved -0.0099, finishing at 3.7091.
Why It Moved
AI-generated explanation: The 4-4 record produced +0.0295 from wins and -0.0394 from losses, for a net move of -0.0099. The biggest single-game impact was -0.0158 against Kathy Gelb 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.
Tina's most common partner signals so far: Carolyn Roan (0-2, 0%), Diana Sellers (1-0, 100%), Janet Artrip (1-0, 100%), Jolynne Colvin (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
Tina has faced Carolyn Roan 4 times - record: 2-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-01 | 3-1 | 3.7190 | 3.7373 | +0.0183 |
| 2026-10-22 | 1-3 | 3.7373 | 3.7091 | -0.0282 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Carolyn Roan | Diana Sellers / Kim Christopherson | 3.7190 | -0.0045 | 3.7145 |
| 2 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-6 | Jolynne Colvin | Kim Christopherson / Carolyn Roan | 3.7145 | +0.0090 | 3.7235 |
| 3 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-8 | Kim Christopherson | Diana Sellers / Jolynne Colvin | 3.7235 | +0.0100 | 3.7335 |
| 4 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-3 | Diana Sellers | Carolyn Roan / Jolynne Colvin | 3.7335 | +0.0038 | 3.7373 |
| 5 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-0 | Janet Artrip | Cindy Hilderbrand / Kathy Gelb | 3.7373 | +0.0067 | 3.7440 |
| 6 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Carolyn Roan | Janet Artrip / Cindy Hilderbrand | 3.7440 | -0.0128 | 3.7312 |
| 7 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Cindy Hilderbrand | Kathy Gelb / Carolyn Roan | 3.7312 | -0.0063 | 3.7249 |
| 8 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 7-11 | Kathy Gelb | Janet Artrip / Carolyn Roan | 3.7249 | -0.0158 | 3.7091 |
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 | 3.5995 | 3.8151 | +0.2156 | -0.0045 |
| 2 | 3.6383 | 3.6043 | +0.0340 | +0.0090 |
| 3 | 3.7274 | 3.7280 | -0.0006 | +0.0100 |
| 4 | 3.8082 | 3.5558 | +0.2524 | +0.0038 |
| 5 | 3.6953 | 3.5752 | +0.1201 | +0.0067 |
| 6 | 3.5856 | 3.4849 | -0.1007 | -0.0128 |
| 7 | 3.5073 | 3.6419 | +0.1346 | -0.0063 |
| 8 | 3.7978 | 3.5677 | -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 +0.2156 -> computed delta -0.0045; 3.7190 -0.0045 = 3.7145