Buck O'Brien

Dallas, TX

Bib: 3426 M 35

0:00

0:00

/ mi

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Overall

#0 / 3420

Top 14%

Gender (Male)

#0 / 2358

Top 17%

Division (M35-39)

#0 / 288

Top 17%

Race Day Weather

57°/47°F

mist

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

472 ft elev

5K· 3.11 mi

8:44/mi

27:08

↑ 141 ft↓ 118 ft0.1% grade

491 ft elev

10K· 6.21 mi

8:26/mi

53:21

↑ 135 ft↓ 59 ft0.5% grade

565 ft elev

15K· 9.32 mi

8:16/mi

1:19:02

↑ 119 ft↓ 113 ft

573 ft elev

20K· 12.43 mi

8:11/mi

1:44:26

↑ 98 ft↓ 187 ft0.5% grade

481 ft elev

13.1M

8:20/mi

1:50:02

↓ 13 ft0.1% grade

475 ft elev

25K· 15.53 mi

8:32/mi

2:10:48

↑ 52 ft↓ 68 ft0.1% grade

459 ft elev

31K· 19.26 mi

7:42/mi

2:39:29

↑ 153 ft↓ 78 ft0.4% grade

541 ft elev

36K· 22.37 mi

9:22/mi

3:08:36

↑ 64 ft↓ 154 ft0.5% grade

457 ft elev

Finish· 26.22 mi

9:00/mi

3:43:13

↑ 79 ft↓ 112 ft0.2% grade

427 ft elev

Course Elevation

367–604 ft

≈

×20story building

•▲ 872 ft climb · ▼ 918 ft descent

The Course

Half Splits

1st Half· via 13.1M

1:50:028:24 /mi⚡ faster

2nd Half

1:53:118:38 /mi+2.9%

Positive split — 2.9% slower in the second half

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Your race, unpacked

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	27:08	8:44	3.11 mi	27:08	8:44	-
10K	53:21	8:35	3.10 mi	26:13	8:26	-0:18
15K	1:19:02	8:29	3.11 mi	25:41	8:16	-0:10
20K	1:44:26	8:24	3.11 mi	25:24	8:11	-0:05
13.1M	1:50:02	8:24	0.67 mi	5:36	8:20	+0:09
25K	2:10:48	8:25	2.43 mi	20:46	8:32	+0:12
31K	2:39:29	8:17	3.73 mi	28:41	7:42	-0:50
36K	3:08:36	8:26	3.11 mi	29:07	9:22	+1:40
Finish(26.22 mi)	3:43:13	8:31	3.85 mi	34:37	9:00	-0:22

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:42 /mi

Average Pace

8:31 /mi

Slowest Pace

9:22 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

54:05

24% of race

Time at Steady Pace

1:18:16

35% of race

Time at Slower Pace

1:30:52

41% of race

Average Pace: 8:31 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M35-39	Seg. Overall	Seg. Males	Seg. M35-39
5K	3.11 mi	924	771	90	693	585	72
10K	3.10 mi	824+100	693+78	82+8	731	617	74
15K	3.11 mi	772+52	648+45	80+2	693	585	72
20K	3.11 mi	692+80	584+64	70+10	558	471	60
13.1M	0.67 mi	689+3	581+3	69+1	538	455	59
25K	2.43 mi	645+44	549+32	67+2	500	427	57
31K	3.73 mi	579+66	489+60	61+6	455	386	45
36K	3.11 mi	499+80	416+73	53+8	340	284	34
Finish(26.22 mi)	3.85 mi	476+23	395+21	49+4	523	409	46

M35-39

Passing Analysis

Category:

▲Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#924
5K → 10K	7107+100	#924 → #824
10K → 15K	557+52	#824 → #772
15K → 20K	080+80	#772 → #692
20K → 13.1M	14+3	#692 → #689
13.1M → 25K	246+44	#689 → #645
25K → 31K	066+66	#645 → #579
31K → 36K	181+80	#579 → #499
36K → Finish	1740+23	#499 → #476
TOTALS	33481+448	#924 → #476

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed 16 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Dallas White Rock Marathon

Race timed by

MyChipTime

Buck O'Brien

Race Timeline

The Course

Half Splits

Your race, unpacked

Checkpoint Splits

Checkpoints & Pacing

Pace Line

Segments

Heatmap

Checkpoint and Segment Rankings

Segment Performance Analysis

10K→15K

5K→10K

10K→15K

15K→20K

20K→13.1M

13.1M→25K

25K→31K

31K→36K

36K→Finish