Storyline
Joyce Leach entered VIPR with an initial registry rating of 2.3220. Across 4 rated doubles games, the player went 1-3 and moved -0.0271, finishing at 2.2949.
Why It Moved
AI-generated explanation: The 1-3 record produced +0.0044 from wins and -0.0315 from losses, for a net move of -0.0271. The biggest single-game impact was -0.0156 against Deborah Austin as partner and Helen Burns / Nancy Wart as opponents. In game #4 on 2026-10-22, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.3970 vs opponent team 2.1748.
Partnership patterns are starting to emerge.
Joyce's most common partner signals so far: Deborah Austin (1-1, 50%), Helen Burns (0-1, 0%), Nancy Wart (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Joyce has faced Helen Burns 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-22 | 1-3 | 2.3220 | 2.2949 | -0.0271 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-10 | Deborah Austin | Helen Burns / Nancy Wart | 2.3220 | +0.0044 | 2.3264 |
| 2 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 10-11 | Helen Burns | Deborah Austin / Nancy Wart | 2.3264 | -0.0068 | 2.3196 |
| 3 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 3-11 | Nancy Wart | Deborah Austin / Helen Burns | 2.3196 | -0.0091 | 2.3105 |
| 4 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Deborah Austin | Helen Burns / Nancy Wart | 2.3105 | -0.0156 | 2.2949 |
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 | 2.3990 | 2.1783 | +0.2207 | +0.0044 |
| 2 | 2.2078 | 2.3242 | +0.1164 | -0.0068 |
| 3 | 2.2500 | 2.2821 | +0.0321 | -0.0091 |
| 4 | 2.3970 | 2.1748 | -0.2222 | -0.0156 |
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 +0.2207 -> computed delta +0.0044; 2.3220 +0.0044 = 2.3264