Initial VIPR
4.5150
Registry seed
Current VIPR
4.5356
After latest rated game
Net Movement
+0.0206
Current minus initial
Record
18-12
60% win rate · 30 rated games
Storyline
Daren Haskell entered VIPR with an initial registry rating of 4.5150. Across 30 rated doubles games, the player went 18-12 and moved +0.0206, finishing at 4.5356.
Why It Moved
AI-generated explanation: The 18-12 record produced +0.1378 from wins and -0.1172 from losses, for a net move of +0.0206. The biggest single-game impact was -0.0145 against Rob Schultz as partner and Steve LaVallee / Jerry Linklater as opponents. In game #12 on 2026-08-27, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.5218 vs opponent team 4.3543.
Partner Chemistry
Partnership patterns are starting to emerge.
Daren's most common partner signals so far: Steve LaVallee (3-1, 75%), Mark Montgomery (2-2, 50%), Craig Narod (2-0, 100%), Jerry Linklater (2-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Daren has faced Steve LaVallee 9 times - record: 5-4. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 2-2 | 4.5150 | 4.4986 | -0.0164 |
| 2026-07-23 | 2-0 | 4.4986 | 4.5150 | +0.0164 |
| 2026-08-06 | 3-1 | 4.5150 | 4.5265 | +0.0115 |
| 2026-08-27 | 2-2 | 4.5265 | 4.5171 | -0.0094 |
| 2026-09-17 | 1-3 | 4.5171 | 4.5087 | -0.0084 |
| 2026-10-01 | 2-2 | 4.5087 | 4.5058 | -0.0029 |
| 2026-10-15 | 3-1 | 4.5058 | 4.5239 | +0.0181 |
| 2026-10-29 | 3-1 | 4.5239 | 4.5356 | +0.0117 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Craig Narod | William Danny Webster / Martin Brady | 4.5150 | +0.0044 | 4.5194 |
| 2 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Mark Burkowski | William Danny Webster / Craig Narod | 4.5194 | +0.0044 | 4.5238 |
| 3 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Martin Brady | Mark Burkowski / Craig Narod | 4.5238 | -0.0113 | 4.5125 |
| 4 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | William Danny Webster | Mark Burkowski / Martin Brady | 4.5125 | -0.0139 | 4.4986 |
| 5 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Mark Burkowski | Bill Shoemaker / Craig Narod | 4.4986 | +0.0068 | 4.5054 |
| 6 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Craig Narod | Jim Keating / Mark Burkowski | 4.5054 | +0.0096 | 4.5150 |
| 7 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | David Jeanguenat | David DeBeradinis / Jerry Linklater | 4.5150 | -0.0108 | 4.5042 |
| 8 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Sal Aparo | David DeBeradinis / David Jeanguenat | 4.5042 | +0.0072 | 4.5114 |
| 9 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Jerry Linklater | Sal Aparo / David Jeanguenat | 4.5114 | +0.0075 | 4.5189 |
| 10 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-1 | David DeBeradinis | Sal Aparo / Jerry Linklater | 4.5189 | +0.0076 | 4.5265 |
| 11 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Kreg S Hamm | Steve LaVallee / Rob Schultz | 4.5265 | -0.0061 | 4.5204 |
| 12 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Rob Schultz | Steve LaVallee / Jerry Linklater | 4.5204 | -0.0145 | 4.5059 |
| 13 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Steve LaVallee | Kreg S Hamm / Jerry Linklater | 4.5059 | +0.0047 | 4.5106 |
| 14 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Jerry Linklater | Kreg S Hamm / Rob Schultz | 4.5106 | +0.0065 | 4.5171 |
| 15 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Oliver Sun | Jim Bruton / Perry Olson | 4.5171 | -0.0021 | 4.5150 |
| 16 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 1-11 | Gary Kray | Jim Bruton / Oliver Sun | 4.5150 | -0.0082 | 4.5068 |
| 17 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Perry Olson | Gary Kray / Oliver Sun | 4.5068 | +0.0062 | 4.5130 |
| 18 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Jim Bruton | Gary Kray / Perry Olson | 4.5130 | -0.0043 | 4.5087 |
| 19 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-3 | Michael Leardi | Mark Montgomery / Steve LaVallee | 4.5087 | +0.0074 | 4.5161 |
| 20 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 4-11 | Steve LaVallee | Michael Leardi / Mark Montgomery | 4.5161 | -0.0091 | 4.5070 |
| 21 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-6 | Mark Montgomery | Michael Leardi / Steve LaVallee | 4.5070 | +0.0097 | 4.5167 |
| 22 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 3-11 | Mark Montgomery | Michael Leardi / Steve LaVallee | 4.5167 | -0.0109 | 4.5058 |
| 23 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 4-11 | Jason Willhite | Scott Kasmere / Mark Montgomery | 4.5058 | -0.0134 | 4.4924 |
| 24 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-2 | Mark Montgomery | Scott Kasmere / Steve LaVallee | 4.4924 | +0.0083 | 4.5007 |
| 25 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Scott Kasmere | Jason Willhite / Steve LaVallee | 4.5007 | +0.0107 | 4.5114 |
| 26 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-3 | Steve LaVallee | Jason Willhite / Mark Montgomery | 4.5114 | +0.0125 | 4.5239 |
| 27 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 9-11 | Mark Montgomery | Doug LeFebvre / Steve LaVallee | 4.5239 | -0.0126 | 4.5113 |
| 28 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-7 | Richard Whittington | Mark Montgomery / Doug LeFebvre | 4.5113 | +0.0126 | 4.5239 |
| 29 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-6 | Doug LeFebvre | Steve LaVallee / Richard Whittington | 4.5239 | +0.0062 | 4.5301 |
| 30 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-3 | Steve LaVallee | Mark Montgomery / Richard Whittington | 4.5301 | +0.0055 | 4.5356 |
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 | 4.2017 | 3.9802 | +0.2215 | +0.0044 |
| 2 | 4.2430 | 4.0233 | +0.2197 | +0.0044 |
| 3 | 4.1322 | 4.0859 | -0.0463 | -0.0113 |
| 4 | 4.1524 | 4.0092 | -0.1432 | -0.0139 |
| 5 | 4.2677 | 4.1510 | +0.1168 | +0.0068 |
| 6 | 4.2123 | 4.1991 | +0.0133 | +0.0096 |
| 7 | 4.3419 | 4.3154 | -0.0265 | -0.0108 |
| 8 | 4.3902 | 4.2907 | +0.0995 | +0.0072 |
| 9 | 4.3687 | 4.2793 | +0.0894 | +0.0075 |
| 10 | 4.4093 | 4.3229 | +0.0864 | +0.0076 |
| 11 | 4.2713 | 4.4137 | +0.1424 | -0.0061 |
| 12 | 4.5218 | 4.3543 | -0.1675 | -0.0145 |
| 13 | 4.4242 | 4.2172 | +0.2070 | +0.0047 |
| 14 | 4.3917 | 4.2649 | +0.1268 | +0.0065 |
| 15 | 4.5293 | 4.9037 | +0.3744 | -0.0021 |
| 16 | 4.5555 | 4.6184 | +0.0629 | -0.0082 |
| 17 | 4.7251 | 4.5872 | +0.1379 | +0.0062 |
| 18 | 4.5910 | 4.8172 | +0.2261 | -0.0043 |
| 19 | 4.5228 | 4.4301 | +0.0926 | +0.0074 |
| 20 | 4.4451 | 4.4779 | +0.0328 | -0.0091 |
| 21 | 4.4675 | 4.4555 | +0.0120 | +0.0097 |
| 22 | 4.4772 | 4.4459 | -0.0314 | -0.0109 |
| 23 | 4.5482 | 4.4253 | -0.1228 | -0.0134 |
| 24 | 4.4717 | 4.4133 | +0.0584 | +0.0083 |
| 25 | 4.4443 | 4.4690 | -0.0248 | +0.0107 |
| 26 | 4.4333 | 4.5215 | -0.0881 | +0.0125 |
| 27 | 4.4673 | 4.3754 | -0.0919 | -0.0126 |
| 28 | 4.3034 | 4.3955 | -0.0921 | +0.0126 |
| 29 | 4.4191 | 4.2819 | +0.1372 | +0.0062 |
| 30 | 4.4419 | 4.2754 | +0.1665 | +0.0055 |
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 +0.2215 -> computed delta +0.0044; 4.5150 +0.0044 = 4.5194