NASCAR XFINITY SERIES AT LAS VEGAS
Las Vegas Motor Speedway — March 7, 2015
Austin Dillon
Winner
200
Laps
40
Entries
7
Leaders
Austin Dillon won the 2015 NASCAR XFINITY SERIES AT LAS VEGAS at Las Vegas Motor Speedway on March 7, 2015, leading 183 of 200 laps. Ryan Blaney finished second; Regan Smith rounded out the podium. The race featured 7 different leaders.
Race Details
Date
Saturday, March 7, 2015
Track
Season
2015
Winner
Leaders
7 drivers
| Pos | Start | +/- | Driver |
|---|---|---|---|
| 1 | 1 | — | Austin Dillon |
| 2 | 4 | +2 | Ryan Blaney |
| 3 | 7 | +4 | Regan Smith |
| 4 | 11 | +7 | Denny Hamlin |
| 5 | 8 | +3 | Chase Elliott |
| 6 | 5 | -1 | Brendan Gaughan |
| 7 | 12 | +5 | Bubba Wallace |
| 8 | 20 | +12 | Ty Dillon |
| 9 | 16 | +7 | Brennan Poole |
| 10 | 15 | +5 | Daniel Suarez |
| 11 | 9 | -2 | Aric Almirola |
| 12 | 6 | -6 | Dale Earnhardt, Jr. |
| 13 | 13 | — | Elliott Sadler |
| 14 | 10 | -4 | Chris Buescher |
| 15 | 18 | +3 | Ryan Reed |
| 16 | 27 | +11 | J.J. Yeley |
| 17 | 31 | +14 | David Starr |
| 18 | 38 | +20 | Ross Chastain |
| 19 | 21 | +2 | John Wes Townley |
| 20 | 22 | +2 | Landon Cassill |
| 21 | 14 | -7 | Ryan Sieg |
| 22 | 25 | +3 | Jeremy Clements |
| 23 | 24 | +1 | Eric McClure |
| 24 | 26 | +2 | Jamie Dick |
| 25 | 28 | +3 | Cale Conley |
| 26 | 29 | +3 | Harrison Rhodes |
| 27 | 35 | +8 | Joey Gase |
| 28 | 33 | +5 | Derek White |
| 29 | 3 | -26 | Erik Jones |
| 30 | 23 | -7 | Dakoda Armstrong |
| 31 | 37 | +6 | Mike Harmon |
| 32 | 32 | — | Mario Gosselin |
| 33 | 36 | +3 | Derrike Cope |
| 34 | 40 | +6 | Cody Ware |
| 35 | 19 | -16 | Blake Koch |
| 36 | 30 | -6 | Carl Long |
| 37 | 39 | +2 | Morgan Shepherd |
| 38 | 2 | -36 | Brian Scott |
| 39 | 17 | -22 | Mike Bliss |
| 40 | 34 | -6 | Jeff Green |
Model Performance
How well did the NR-Rating model predict this race? Across 15 matched drivers, the model averaged 9.0 positions off — close to the season average of 8.5. Below Average
| Pos | Driver | Predicted | Actual | Delta |
|---|---|---|---|---|
| 1 | Austin Dillon | 17.1 | 1 | +16.1 |
| 2 | Ryan Blaney | 9.2 | 2 | +7.2 |
| 4 | Denny Hamlin | 8.2 | 4 | +4.2 |
| 5 | Chase Elliott | 7.8 | 5 | +2.8 |
| 7 | Bubba Wallace | 12.7 | 7 | +5.7 |
| 8 | Ty Dillon | 23.4 | 8 | +15.4 |
| 9 | Brennan Poole | 24.7 | 9 | +15.7 |
| 10 | Daniel Suarez | 14.0 | 10 | +4.0 |
| 14 | Chris Buescher | 9.2 | 14 | -4.8 |
| 16 | J.J. Yeley | 28.8 | 16 | +12.8 |
| 17 | David Starr | 20.9 | 17 | +3.9 |
| 18 | Ross Chastain | 13.3 | 18 | -4.7 |
| 27 | Joey Gase | 23.4 | 27 | -3.6 |
| 29 | Erik Jones | 16.7 | 29 | -12.3 |
| 34 | Cody Ware | 56.1 | 34 | +22.1 |
Predicted finish from NR-Rating model. Delta = predicted − actual (positive = driver beat prediction). Confidence: High Confidence = low variance (stdDev ≤ 9), Moderate = medium variance, Coinflip = high variance.
Historical Context
- Austin Dillon: has 29 career starts at Las Vegas Motor Speedway with a 13.7 avg finish (2 wins) — the model may have underweighted this track history.
- Chase Elliott: was the model’s top pick based on 16 career starts at Las Vegas Motor Speedway with a 12.1 avg finish, finishing P5 on the day.
- Cody Ware: was the biggest surprise, finishing P34 vs predicted P56. Track history: 6 starts, 33.5 avg finish.
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Frequently Asked Questions
Who won the 2015 NASCAR XFINITY SERIES AT LAS VEGAS?
Austin Dillon won the 2015 NASCAR XFINITY SERIES AT LAS VEGAS at Las Vegas Motor Speedway.
Where was the 2015 NASCAR XFINITY SERIES AT LAS VEGAS held?
The 2015 NASCAR XFINITY SERIES AT LAS VEGAS was held at Las Vegas Motor Speedway on March 7, 2015.