Initial VIPR
4.0050
Registry seed
Current VIPR
4.0103
After latest rated game
Net Movement
+0.0053
Current minus initial
Record
8-7
53% win rate · 15 rated games
Storyline
Ken Vallance entered VIPR with an initial registry rating of 4.0050. Across 15 rated doubles games, the player went 8-7 and moved +0.0053, finishing at 4.0103.
Why It Moved
AI-generated explanation: The 8-7 record produced +0.0827 from wins and -0.0774 from losses, for a net move of +0.0053. The biggest single-game impact was -0.0196 against Jason Johnson as partner and Craig Narod / Ramon Jimenez as opponents. In game #15 on 2026-08-27, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.0704 vs opponent team 3.4103.
Partner Chemistry
Partnership patterns are starting to emerge.
Ken's most common partner signals so far: Pete Nikolakakis (3-0, 100%), Scott Konkel (2-0, 100%), Martin Brady (1-1, 50%), Jerry Stotts (0-2, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Ken has faced Pete Nikolakakis 5 times - record: 3-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 2-2 | 4.0050 | 3.9998 | -0.0052 |
| 2026-07-16 | 2-2 | 3.9998 | 3.9950 | -0.0048 |
| 2026-07-23 | 4-0 | 3.9950 | 4.0364 | +0.0414 |
| 2026-08-27 | 0-3 | 4.0364 | 4.0103 | -0.0261 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Loss | 7-11 | Jerry Stotts | Scott Konkel / Pete Nikolakakis | 4.0050 | -0.0140 | 3.9910 |
| 2 | 2026-07-09 | Loss | 10-11 | Fred Veenstra | Jerry Stotts / Scott Konkel | 3.9910 | -0.0102 | 3.9808 |
| 3 | 2026-07-09 | Win | 11-4 | Scott Konkel | Pete Nikolakakis / Fred Veenstra | 3.9808 | +0.0090 | 3.9898 |
| 4 | 2026-07-09 | Win | 11-9 | Pete Nikolakakis | Jerry Stotts / Fred Veenstra | 3.9898 | +0.0100 | 3.9998 |
| 5 | 2026-07-16 | Win | 11-8 | Chris Donahue | Jerry Stotts / Jerry Visconti | 3.9998 | +0.0146 | 4.0144 |
| 6 | 2026-07-16 | Loss | 8-11 | William Danny Webster | Jerry Visconti / Pete Nikolakakis | 4.0144 | -0.0123 | 4.0021 |
| 7 | 2026-07-16 | Win | 11-3 | Pete Nikolakakis | Jerry Visconti / Chris Donahue | 4.0021 | +0.0077 | 4.0098 |
| 8 | 2026-07-16 | Loss | 7-11 | Jerry Stotts | William Danny Webster / Chris Donahue | 4.0098 | -0.0148 | 3.9950 |
| 9 | 2026-07-23 | Win | 11-1 | Martin Brady | Dan Civitarese / Pete Nikolakakis | 3.9950 | +0.0134 | 4.0084 |
| 10 | 2026-07-23 | Win | 11-3 | Pete Nikolakakis | Dan Civitarese / Scott Konkel | 4.0084 | +0.0152 | 4.0236 |
| 11 | 2026-07-23 | Win | 11-10 | Dan Civitarese | Martin Brady / Scott Konkel | 4.0236 | +0.0035 | 4.0271 |
| 12 | 2026-07-23 | Win | 11-7 | Scott Konkel | Martin Brady / Pete Nikolakakis | 4.0271 | +0.0093 | 4.0364 |
| 13 | 2026-08-27 | Loss | 5-11 | Martin Brady | Craig Narod / Jason Johnson | 4.0364 | -0.0059 | 4.0305 |
| 14 | 2026-08-27 | Loss | 6-11 | Ramon Jimenez | Jason Johnson / Martin Brady | 4.0305 | -0.0006 | 4.0299 |
| 15 | 2026-08-27 | Loss | 6-11 | Jason Johnson | Craig Narod / Ramon Jimenez | 4.0299 | -0.0196 | 4.0103 |
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 | 4.0053 | 3.8587 | -0.1466 | -0.0140 |
| 2 | 3.9144 | 3.9078 | -0.0066 | -0.0102 |
| 3 | 3.9088 | 3.8740 | +0.0347 | +0.0090 |
| 4 | 3.9068 | 3.9071 | -0.0004 | +0.0100 |
| 5 | 3.8191 | 3.9935 | -0.1744 | +0.0146 |
| 6 | 3.9903 | 3.9095 | -0.0809 | -0.0123 |
| 7 | 3.9173 | 3.8344 | +0.0829 | +0.0077 |
| 8 | 4.0025 | 3.8193 | -0.1833 | -0.0148 |
| 9 | 3.9728 | 4.0945 | -0.1217 | +0.0134 |
| 10 | 3.9093 | 4.1086 | -0.1992 | +0.0152 |
| 11 | 4.1862 | 3.9167 | +0.2695 | +0.0035 |
| 12 | 3.9409 | 3.9160 | +0.0249 | +0.0093 |
| 13 | 3.9594 | 4.1115 | +0.1521 | -0.0059 |
| 14 | 3.3907 | 3.9937 | +0.6030 | -0.0006 |
| 15 | 4.0704 | 3.4103 | -0.6601 | -0.0196 |
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 -0.1466 -> computed delta -0.0140; 4.0050 -0.0140 = 3.9910