Initial VIPR
4.2110
Registry seed
Current VIPR
4.0817
After latest rated game
Net Movement
-0.1293
Current minus initial
Record
8-12
40% win rate · 20 rated games
Storyline
Joseph Weber entered VIPR with an initial registry rating of 4.2110. Across 20 rated doubles games, the player went 8-12 and moved -0.1293, finishing at 4.0817.
Why It Moved
AI-generated explanation: The 8-12 record produced +0.0528 from wins and -0.1821 from losses, for a net move of -0.1293. The biggest single-game impact was -0.0172 against Robert Nunn as partner and Kevin Geraty / Sunil Sadhwani as opponents. In game #5 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.7501 vs opponent team 3.4382.
Partner Chemistry
Partnership patterns are starting to emerge.
Joseph's most common partner signals so far: Craig Vogel (1-1, 50%), Joseph DeVito (0-2, 0%), Robert Nunn (0-2, 0%), Chris Donahue (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
Joseph has faced Robert Nunn 4 times - record: 2-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 1-3 | 4.2110 | 4.1744 | -0.0366 |
| 2026-07-23 | 2-2 | 4.1744 | 4.1536 | -0.0208 |
| 2026-08-06 | 3-1 | 4.1536 | 4.1537 | +0.0001 |
| 2026-09-24 | 1-3 | 4.1537 | 4.1169 | -0.0368 |
| 2026-10-29 | 1-3 | 4.1169 | 4.0817 | -0.0352 |
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 | 4-11 | Craig Vogel | Chris Donahue / John Hayward | 4.2110 | -0.0159 | 4.1951 |
| 2 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Chris Donahue | Matt Dame / Frank Pindulic | 4.1951 | +0.0077 | 4.2028 |
| 3 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | John Hayward | Craig Vogel / Frank Pindulic | 4.2028 | -0.0141 | 4.1887 |
| 4 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Matt Dame | Craig Vogel / Chris Donahue | 4.1887 | -0.0143 | 4.1744 |
| 5 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Robert Nunn | Kevin Geraty / Sunil Sadhwani | 4.1744 | -0.0172 | 4.1572 |
| 6 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Sunil Sadhwani | Kevin Geraty / Robert McCollough | 4.1572 | +0.0080 | 4.1652 |
| 7 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-1 | Kevin Geraty | Robert Nunn / Robert McCollough | 4.1652 | +0.0054 | 4.1706 |
| 8 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Robert McCollough | Robert Nunn / Sunil Sadhwani | 4.1706 | -0.0170 | 4.1536 |
| 9 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Craig Vogel | Joseph DeVito / Jimmy Bowes | 4.1536 | +0.0051 | 4.1587 |
| 10 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Jimmy Bowes | Kevin Battle / John Ressler | 4.1587 | +0.0067 | 4.1654 |
| 11 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | John Ressler | Craig Vogel / Kevin Battle | 4.1654 | +0.0046 | 4.1700 |
| 12 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Joseph DeVito | Kevin Battle / Jimmy Bowes | 4.1700 | -0.0163 | 4.1537 |
| 13 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Loss | 2-11 | Christopher Burns | Dan Scheer / Mark Wu | 4.1537 | -0.0144 | 4.1393 |
| 14 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Dan Scheer | Joe Spano / Pete Nikolakakis | 4.1393 | +0.0093 | 4.1486 |
| 15 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Mark Wu | Christopher Burns / Pete Nikolakakis | 4.1486 | -0.0161 | 4.1325 |
| 16 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Joe Spano | Christopher Burns / Dan Scheer | 4.1325 | -0.0156 | 4.1169 |
| 17 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Terry Sykes | Robert Nunn / Jim Toth | 4.1169 | +0.0060 | 4.1229 |
| 18 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Joseph DeVito | Jim Toth / Terry Sykes | 4.1229 | -0.0157 | 4.1072 |
| 19 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 4-11 | Jim Toth | Robert Nunn / Joseph DeVito | 4.1072 | -0.0138 | 4.0934 |
| 20 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 10-11 | Robert Nunn | Terry Sykes / Joseph DeVito | 4.0934 | -0.0117 | 4.0817 |
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 | 3.9758 | 3.7383 | -0.2375 | -0.0159 |
| 2 | 3.8681 | 3.7886 | +0.0796 | +0.0077 |
| 3 | 3.9402 | 3.7871 | -0.1531 | -0.0141 |
| 4 | 3.9350 | 3.7733 | -0.1617 | -0.0143 |
| 5 | 3.7501 | 3.4382 | -0.3119 | -0.0172 |
| 6 | 3.6361 | 3.5658 | +0.0703 | +0.0080 |
| 7 | 3.7325 | 3.5606 | +0.1719 | +0.0054 |
| 8 | 3.7639 | 3.4631 | -0.3008 | -0.0170 |
| 9 | 3.8993 | 3.7112 | +0.1881 | +0.0051 |
| 10 | 3.8167 | 3.6988 | +0.1178 | +0.0067 |
| 11 | 3.9029 | 3.6936 | +0.2093 | +0.0046 |
| 12 | 3.9097 | 3.6548 | -0.2548 | -0.0163 |
| 13 | 3.9876 | 3.8243 | -0.1633 | -0.0144 |
| 14 | 3.8711 | 3.8469 | +0.0242 | +0.0093 |
| 15 | 4.0608 | 3.8143 | -0.2464 | -0.0161 |
| 16 | 4.0311 | 3.8137 | -0.2174 | -0.0156 |
| 17 | 3.8027 | 3.6565 | +0.1462 | +0.0060 |
| 18 | 3.9019 | 3.6773 | -0.2246 | -0.0157 |
| 19 | 3.8226 | 3.6824 | -0.1402 | -0.0138 |
| 20 | 3.7827 | 3.7244 | -0.0583 | -0.0117 |
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 -0.2375 -> computed delta -0.0159; 4.2110 -0.0159 = 4.1951