Initial VIPR
4.0050
Registry seed
Current VIPR
3.9117
After latest rated game
Net Movement
-0.0933
Current minus initial
Record
14-21
40% win rate · 35 rated games
Storyline
Ken Vallance entered VIPR with an initial registry rating of 4.0050. Across 35 rated doubles games, the player went 14-21 and moved -0.0933, finishing at 3.9117.
Why It Moved
AI-generated explanation: The 14-21 record produced +0.1414 from wins and -0.2347 from losses, for a net move of -0.0933. 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 4.0703 vs opponent team 3.4118.
Partner Chemistry
Partnership patterns are starting to emerge.
Ken's most common partner signals so far: Scott Konkel (3-1, 75%), Pete Nikolakakis (3-0, 100%), Chris Dicomitis (1-2, 33%), Martin Brady (1-2, 33%). 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 Scott Konkel 8 times - record: 2-6. A tough matchup so far.
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 | 3.9949 | -0.0049 |
| 2026-07-23 | 4-0 | 3.9949 | 4.0362 | +0.0413 |
| 2026-08-27 | 0-3 | 4.0362 | 4.0101 | -0.0261 |
| 2026-10-01 | 0-4 | 4.0101 | 3.9696 | -0.0405 |
| 2026-10-15 | 1-3 | 3.9696 | 3.9514 | -0.0182 |
| 2026-10-20 | 1-3 | 3.9514 | 3.9174 | -0.0340 |
| 2026-10-22 | 3-1 | 3.9174 | 3.9339 | +0.0165 |
| 2026-10-29 | 1-3 | 3.9339 | 3.9117 | -0.0222 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Jerry Stotts | Scott Konkel / Pete Nikolakakis | 4.0050 | -0.0140 | 3.9910 |
| 2 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Fred Veenstra | Jerry Stotts / Scott Konkel | 3.9910 | -0.0102 | 3.9808 |
| 3 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Scott Konkel | Pete Nikolakakis / Fred Veenstra | 3.9808 | +0.0090 | 3.9898 |
| 4 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Pete Nikolakakis | Jerry Stotts / Fred Veenstra | 3.9898 | +0.0100 | 3.9998 |
| 5 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Chris Donahue | Jerry Stotts / Jerry Visconti | 3.9998 | +0.0146 | 4.0144 |
| 6 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | William Danny Webster | Jerry Visconti / Pete Nikolakakis | 4.0144 | -0.0124 | 4.0020 |
| 7 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Pete Nikolakakis | Jerry Visconti / Chris Donahue | 4.0020 | +0.0077 | 4.0097 |
| 8 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Jerry Stotts | William Danny Webster / Chris Donahue | 4.0097 | -0.0148 | 3.9949 |
| 9 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-1 | Martin Brady | Dan Civitarese / Pete Nikolakakis | 3.9949 | +0.0133 | 4.0082 |
| 10 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Pete Nikolakakis | Dan Civitarese / Scott Konkel | 4.0082 | +0.0152 | 4.0234 |
| 11 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Dan Civitarese | Martin Brady / Scott Konkel | 4.0234 | +0.0035 | 4.0269 |
| 12 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Scott Konkel | Martin Brady / Pete Nikolakakis | 4.0269 | +0.0093 | 4.0362 |
| 13 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Martin Brady | Craig Narod / Jason Johnson | 4.0362 | -0.0059 | 4.0303 |
| 14 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Ramon Jimenez | Jason Johnson / Martin Brady | 4.0303 | -0.0006 | 4.0297 |
| 15 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Jason Johnson | Craig Narod / Ramon Jimenez | 4.0297 | -0.0196 | 4.0101 |
| 16 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 9-11 | Scott Konkel | Rick Kellam / Jerry Visconti | 4.0101 | -0.0095 | 4.0006 |
| 17 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 5-11 | Jerry Visconti | Rick Kellam / Chris Dicomitis | 4.0006 | -0.0094 | 3.9912 |
| 18 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 9-11 | Rick Kellam | Scott Konkel / Chris Dicomitis | 3.9912 | -0.0108 | 3.9804 |
| 19 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 4-11 | Chris Dicomitis | Scott Konkel / Jerry Visconti | 3.9804 | -0.0108 | 3.9696 |
| 20 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 6-11 | Jon Duke | Chris Dicomitis / Martin Brady | 3.9696 | -0.0130 | 3.9566 |
| 21 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Martin Brady | Chris Dicomitis / Jon Duke | 3.9566 | -0.0054 | 3.9512 |
| 22 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-9 | Chris Dicomitis | Martin Brady / Jon Duke | 3.9512 | +0.0104 | 3.9616 |
| 23 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Chris Dicomitis | Martin Brady / Jon Duke | 3.9616 | -0.0102 | 3.9514 |
| 24 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Win | 21-12 | Chris Eversole | Bob Humphrey / David Koleda | 3.9514 | +0.0093 | 3.9607 |
| 25 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 20-22 | Mike Fritz | David Koleda / Mike Blackston | 3.9607 | -0.0097 | 3.9510 |
| 26 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 14-21 | Nancy OBrien | Ellen Huber / David Koleda | 3.9510 | -0.0176 | 3.9334 |
| 27 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 15-21 | Barb O'Connor | Cookie Sciacca / David Koleda | 3.9334 | -0.0160 | 3.9174 |
| 28 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | George Artrip | Tony Moran / Bob Rich | 3.9174 | +0.0072 | 3.9246 |
| 29 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Christopher Burns | George Artrip / Tony Moran | 3.9246 | -0.0136 | 3.9110 |
| 30 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Win | 11-5 | Tony Moran | Bob Rich / Christopher Burns | 3.9110 | +0.0120 | 3.9230 |
| 31 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Bob Rich | George Artrip / Christopher Burns | 3.9230 | +0.0109 | 3.9339 |
| 32 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-5 | Scott Konkel | Dan Cupertino / George Artrip | 3.9339 | +0.0090 | 3.9429 |
| 33 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 6-11 | George Artrip | Dan Cupertino / Bob Rich | 3.9429 | -0.0103 | 3.9326 |
| 34 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 3-11 | Dan Cupertino | Scott Konkel / Bob Rich | 3.9326 | -0.0109 | 3.9217 |
| 35 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 9-11 | Bob Rich | Scott Konkel / George Artrip | 3.9217 | -0.0100 | 3.9117 |
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 | 3.9933 | 3.9095 | -0.0838 | -0.0124 |
| 7 | 3.9173 | 3.8345 | +0.0828 | +0.0077 |
| 8 | 4.0026 | 3.8205 | -0.1820 | -0.0148 |
| 9 | 3.9754 | 4.0945 | -0.1192 | +0.0133 |
| 10 | 3.9094 | 4.1086 | -0.1992 | +0.0152 |
| 11 | 4.1861 | 3.9178 | +0.2683 | +0.0035 |
| 12 | 3.9409 | 3.9173 | +0.0236 | +0.0093 |
| 13 | 3.9618 | 4.1151 | +0.1533 | -0.0059 |
| 14 | 3.3906 | 3.9962 | +0.6055 | -0.0006 |
| 15 | 4.0703 | 3.4118 | -0.6585 | -0.0196 |
| 16 | 3.9808 | 3.9969 | +0.0161 | -0.0095 |
| 17 | 3.9980 | 4.0176 | +0.0196 | -0.0094 |
| 18 | 4.0052 | 3.9778 | -0.0274 | -0.0108 |
| 19 | 3.9991 | 3.9711 | -0.0281 | -0.0108 |
| 20 | 4.0456 | 3.9362 | -0.1094 | -0.0130 |
| 21 | 3.9226 | 4.0945 | +0.1719 | -0.0054 |
| 22 | 3.9810 | 3.9965 | -0.0155 | +0.0104 |
| 23 | 3.9914 | 3.9861 | -0.0053 | -0.0102 |
| 24 | 4.1055 | 4.0820 | +0.0235 | +0.0093 |
| 25 | 3.9870 | 3.9973 | +0.0104 | -0.0097 |
| 26 | 3.9512 | 3.6054 | -0.3458 | -0.0176 |
| 27 | 3.7179 | 3.4793 | -0.2386 | -0.0160 |
| 28 | 3.8997 | 3.7992 | +0.1005 | +0.0072 |
| 29 | 3.9326 | 3.8021 | -0.1305 | -0.0136 |
| 30 | 3.8188 | 3.8900 | -0.0712 | +0.0120 |
| 31 | 3.8772 | 3.9082 | -0.0310 | +0.0109 |
| 32 | 3.9413 | 3.9067 | +0.0346 | +0.0090 |
| 33 | 3.8994 | 3.8891 | -0.0104 | -0.0103 |
| 34 | 3.9370 | 3.9054 | -0.0316 | -0.0109 |
| 35 | 3.9078 | 3.9077 | -0.0001 | -0.0100 |
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