31st Annual Centaur Invitational 2009 vs 30th Annual Centaur Invitational 2008
| Difference | This Meet | That Meet | |
|---|---|---|---|
| Overall Athletes | +295 | 324 | 29 |
| Overall Average | +2:15.28 | 22:00.73 | 19:45.45 |
| 1st-10th Place | +31.14 | 17:10.92 | 16:39.78 |
| 1st-25th Place | -1:13.18 | 17:34.23 | 18:47.42 |
| 1st-50th Place | +6:30.81 | 17:58.37 | 11:27.56 |
| 1st-100th Place | +12:56.18 | 18:39.96 | 5:43.78 |
| Common Athletes | -- | -- | 10 |
| Ran Faster | -4 | 3 | 7 |
| Ran Season Best | -- | 10 | 10 |
| Average Time | +2.90 | 18:57.01 | 18:54.11 |
| Median Time | -51.20 | 18:33.80 | 19:25.00 |
| Middle 80% Times | +1.39 | 18:44.88 | 18:43.49 |
| Top 10% Times | +8.90 | 16:36.20 | 16:27.30 |
| Top 25% Times | +2.77 | 16:49.23 | 16:46.47 |
| Top 50% Times | +1.90 | 17:28.44 | 17:26.54 |
| Bottom 50% Times | +3.90 | 20:25.58 | 20:21.68 |
| Bottom 25% Times | +20.40 | 21:15.47 | 20:55.07 |
| Bottom 10% Times | +9.00 | 22:54.90 | 22:45.90 |
| Average Difference | +2.90 | -- | -- |
| Median Difference | +3.80 | -- | -- |
| Middle 80% Difference | +1.39 | -- | -- |
| Top 10% Difference | +8.90 | -- | -- |
| Top 50% Difference | +2.16 | -- | -- |
| Top 25% Difference | +2.77 | -- | -- |
| Top 50% Difference | +2.16 | -- | -- |
| Bottom 50% Difference | +3.64 | -- | -- |
| Bottom 25% Difference | -4.90 | -- | -- |
| Bottom 10% Difference | +9.00 | -- | -- |
| Athlete | Team | Difference | This Meet | That Meet |
|---|---|---|---|---|
| Vincent Perozze | Perkiomen Valley | +8.90 | 16:36.20 | 16:27.30 |
| Chris Campbell | Council Rock North | -6.00 | 16:48.00 | 16:54.00 |
| Michael Mahoney | Council Rock North | +5.40 | 17:03.50 | 16:58.10 |
| Phil Wahlman | Council Rock North | -1.80 | 18:22.00 | 18:23.80 |
| Joel Rabinowitz | Council Rock North | +4.30 | 18:33.80 | 18:29.50 |
| Michael Peterson | Council Rock North | -1:42.90 | 18:32.50 | 20:15.40 |
| Elizabeth Simpson | Boyertown | +29.10 | 19:54.10 | 19:25.00 |
| Kaylee Irwin | Hatboro Horsham | +1:19.20 | 20:57.40 | 19:38.20 |
| Lindsay Kerr | Northwestern Lehigh | +3.80 | 19:47.70 | 19:43.90 |
| Natalie Boehm | Northwestern Lehigh | +9.00 | 22:54.90 | 22:45.90 |