Initial VIPR
3.4600
Registry seed
Current VIPR
3.4532
After latest rated game
Net Movement
-0.0068
Current minus initial
Record
3-3
50% win rate · 6 rated games
Storyline
Michael Kravatz entered VIPR with an initial registry rating of 3.4600. Across 6 rated doubles games, the player went 3-3 and moved -0.0068, finishing at 3.4532.
Why It Moved
AI-generated explanation: The 3-3 record produced +0.0301 from wins and -0.0369 from losses, for a net move of -0.0068. The biggest single-game impact was -0.0155 against James Peavley as partner and John Gralton / Ted Abelson as opponents. In game #1 on 2026-10-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.5344 vs opponent team 3.3187.
Partner Chemistry
Partnership patterns are starting to emerge.
Michael's most common partner signals so far: Debra Vena (2-0, 100%), David Choate (1-1, 50%), James Peavley (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
Michael has faced James Ballard 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 2-1 | 3.4600 | 3.4642 | +0.0042 |
| 2026-10-20 | 1-2 | 3.4642 | 3.4532 | -0.0110 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 20-22 | James Peavley | John Gralton / Ted Abelson | 3.4600 | -0.0155 | 3.4445 |
| 2 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-19 | Debra Vena | Debbie Gassman / Ted Abelson | 3.4445 | +0.0110 | 3.4555 |
| 3 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-19 | David Choate | Ted Abelson / Eric Jones | 3.4555 | +0.0087 | 3.4642 |
| 4 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 14-21 | David Choate | James Ballard / Ron Houck | 3.4642 | -0.0101 | 3.4541 |
| 5 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 22-20 | Debra Vena | Beth Ely / James Ballard | 3.4541 | +0.0104 | 3.4645 |
| 6 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 20-22 | James Peavley | Kevin Eisemon / James Ballard | 3.4645 | -0.0113 | 3.4532 |
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 | 3.5344 | 3.3187 | -0.2157 | -0.0155 |
| 2 | 3.2961 | 3.3321 | -0.0360 | +0.0110 |
| 3 | 3.3005 | 3.2552 | +0.0454 | +0.0087 |
| 4 | 3.3027 | 3.2980 | -0.0047 | -0.0101 |
| 5 | 3.3178 | 3.3331 | -0.0152 | +0.0104 |
| 6 | 3.5249 | 3.4804 | -0.0445 | -0.0113 |
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 -0.2157 -> computed delta -0.0155; 3.4600 -0.0155 = 3.4445