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Justin Zahn

Bib: 5909•M

0:00

0:00

/ mi

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Overall

#0 / 29021

Top 18%

Gender (Male)

#0 / 16340

Top 29%

Age Group (M18-39)

#0 / 5723

Race Day Weather

51°/41°F

overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start

0:00:00

Race begins

Start

0:00:00

Race begins

21:21

3.11 mi

Rank: #7479

Start → 5K

21:21 | 6:53/mi

21:21

3.11 mi

Rank: #7479

Start → 5K

21:21 | 6:53/mi

10K

42:34

6.21 mi

Rank: #7362 (+117)

5K → 10K

21:13 | 6:50/mi

10K

42:34

6.21 mi

Rank: #7362 (+117)

5K → 10K

21:13 | 6:50/mi

15K

1:03:48

9.32 mi

Rank: #7303 (+59)

10K → 15K

21:14 | 6:51/mi

15K

1:03:48

9.32 mi

Rank: #7303 (+59)

10K → 15K

21:14 | 6:51/mi

20K

1:25:32

12.43 mi

Rank: #7442 (-139)

15K → 20K

21:44 | 7:00/mi

20K

1:25:32

12.43 mi

Rank: #7442 (-139)

15K → 20K

21:44 | 7:00/mi

HALF

1:30:12

13.11 mi

Rank: #7435 (+7)

20K → HALF

4:40 | 6:51/mi

HALF

1:30:12

13.11 mi

Rank: #7435 (+7)

20K → HALF

4:40 | 6:51/mi

25K

1:46:56

15.53 mi

Rank: #7264 (+171)

HALF → 25K

16:44 | 6:54/mi

25K

1:46:56

15.53 mi

Rank: #7264 (+171)

HALF → 25K

16:44 | 6:54/mi

30K

2:08:34

18.64 mi

Rank: #6930 (+334)

25K → 30K

21:38 | 6:58/mi

30K

2:08:34

18.64 mi

Rank: #6930 (+334)

25K → 30K

21:38 | 6:58/mi

20M

2:17:59

20.00 mi

Rank: #6742 (+188)

30K → 20M

9:25 | 6:56/mi

20M

2:17:59

20.00 mi

Rank: #6742 (+188)

30K → 20M

9:25 | 6:56/mi

21M

2:25:00

21.00 mi

Rank: #6512 (+230)

20M → 21M

7:01 | 7:01/mi

21M

2:25:00

21.00 mi

Rank: #6512 (+230)

20M → 21M

7:01 | 7:01/mi

35K

2:29:56

21.75 mi

Rank: #6412 (+100)

21M → 35K

4:56 | 6:36/mi

35K

2:29:56

21.75 mi

Rank: #6412 (+100)

21M → 35K

4:56 | 6:36/mi

23M

2:38:23

23.00 mi

Rank: #6217 (+195)

35K → 23M

8:27 | 6:46/mi

23M

2:38:23

23.00 mi

Rank: #6217 (+195)

35K → 23M

8:27 | 6:46/mi

24M

2:44:49

24.00 mi

Rank: #5998 (+219)

23M → 24M

6:26 | 6:26/mi

24M

2:44:49

24.00 mi

Rank: #5998 (+219)

23M → 24M

6:26 | 6:26/mi

40K

2:50:19

24.85 mi

Rank: #5774 (+224)

24M → 40K

5:30 | 6:26/mi

40K

2:50:19

24.85 mi

Rank: #5774 (+224)

24M → 40K

5:30 | 6:26/mi

25.2M

2:52:38

25.20 mi

Rank: #5658 (+116)

40K → 25.2M

2:19 | 6:44/mi

25.2M

2:52:38

25.20 mi

Rank: #5658 (+116)

40K → 25.2M

2:19 | 6:44/mi

FINISH

2:58:25

26.22 mi

Rank: #5275 (+383)

25.2M → FINISH

5:47 | 5:41/mi

FINISH

2:58:25

26.22 mi

Rank: #5275 (+383)

25.2M → FINISH

5:47 | 5:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half

via HALF

Distance13.11 mi

Time1:30:12

Pace6:53 /mi

2nd Half✓ Faster

Spacer

Distance13.11 mi

Time1:28:13

Pace6:44 /mi

📊Negative Split: 2.2% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	10:25:49	21:21	6:53	21:21	6:53	-
10K	6.21 mi	10:47:02	42:34	6:52	21:13	6:50	-0:03
15K	9.32 mi	11:08:16	1:03:48	6:51	21:14	6:51	+0:01
20K	12.43 mi	11:30:00	1:25:32	6:53	21:44	7:00	+0:09
HALF	13.11 mi	11:34:40	1:30:12	6:53	4:40	6:51	-0:09
25K	15.53 mi	11:51:24	1:46:56	6:54	16:44	6:54	+0:03
30K	18.64 mi	12:13:02	2:08:34	6:54	21:38	6:58	+0:04
20M	20.00 mi	12:22:27	2:17:59	6:54	9:25	6:56	-0:02
21M	21.00 mi	12:29:28	2:25:00	6:55	7:01	7:01	+0:05
35K	21.75 mi	12:34:24	2:29:56	6:54	4:56	6:36	-0:25
23M	23.00 mi	12:42:51	2:38:23	6:54	8:27	6:46	+0:10
24M	24.00 mi	12:49:17	2:44:49	6:53	6:26	6:26	-0:20
40K	24.85 mi	12:54:47	2:50:19	6:52	5:30	6:26	0:00
25.2M	25.20 mi	12:57:06	2:52:38	6:52	2:19	6:44	+0:18
FINISH	26.22 mi	13:02:53	2:58:25	6:49	5:47	5:41	-1:03

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

5:41 /mi

Average Pace

6:49 /mi

Slowest Pace

7:01 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

22:39

13% of race

Time at Steady Pace

2:28:45

83% of race

Time at Slower Pace

7:01

4% of race

Average Pace: 6:48 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
5K	3.11 mi	10:25:49	21:21	6:53	21:21	6:53	#7479
10K	6.21 mi	10:47:02	42:34	6:52	21:13	6:50	#7362
15K	9.32 mi	11:08:16	1:03:48	6:51	21:14	6:51	#7303
20K	12.43 mi	11:30:00	1:25:32	6:53	21:44	7:00	#7442
HALF	13.11 mi	11:34:40	1:30:12	6:53	4:40	6:51	#7435
25K	15.53 mi	11:51:24	1:46:56	6:54	16:44	6:54	#7264
30K	18.64 mi	12:13:02	2:08:34	6:54	21:38	6:58	#6930
20M	20.00 mi	12:22:27	2:17:59	6:54	9:25	6:56	#6742
21M	21.00 mi	12:29:28	2:25:00	6:55	7:01	7:01	#6512
35K	21.75 mi	12:34:24	2:29:56	6:54	4:56	6:36	#6412
23M	23.00 mi	12:42:51	2:38:23	6:54	8:27	6:46	#6217
24M	24.00 mi	12:49:17	2:44:49	6:53	6:26	6:26	#5998
40K	24.85 mi	12:54:47	2:50:19	6:52	5:30	6:26	#5774
25.2M	25.20 mi	12:57:06	2:52:38	6:52	2:19	6:44	#5658
FINISH	26.22 mi	13:02:53	2:58:25	6:49	5:47	5:41	#5275

Faster pace

Steady pace

Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M18-39	Seg. Overall	Seg. Males	Seg. M18-39
5K	3.11 mi	3.11 mi	7479	6542	6542	7132(Top 25%)	6268(Top 38%)	6268(Top 110%)
10K	6.21 mi	3.10 mi	7362+117	6454+88	6454+88	7243(Top 25%)	6364(Top 39%)	6364(Top 111%)
15K	9.32 mi	3.11 mi	7303+59	6409+45	6409+45	7132(Top 25%)	6268(Top 38%)	6268(Top 110%)
20K	12.43 mi	3.11 mi	7442-139	6492-83	6492-83	7808(Top 27%)	6705(Top 41%)	6705(Top 117%)
HALF	13.11 mi	0.68 mi	7435+7	6487+5	6487+5	7418(Top 26%)	6451(Top 39%)	6451(Top 113%)
25K	15.53 mi	2.42 mi	7264+171	6362+125	6362+125	6662(Top 23%)	5855(Top 36%)	5855(Top 102%)
30K	18.64 mi	3.11 mi	6930+334	6105+257	6105+257	5618(Top 19%)	5021(Top 31%)	5021(Top 88%)
20M	20.00 mi	1.36 mi	6742+188	5959+146	5959+146	5054(Top 17%)	4520(Top 28%)	4520(Top 79%)
21M	21.00 mi	1.00 mi	6512+230	5786+173	5786+173	3589(Top 12%)	3287(Top 20%)	3287(Top 57%)
35K	21.75 mi	0.75 mi	6412+100	5699+87	5699+87	4216(Top 15%)	3818(Top 23%)	3818(Top 67%)
23M	23.00 mi	1.25 mi	6217+195	5541+158	5541+158	3802(Top 13%)	3441(Top 21%)	3441(Top 60%)
24M	24.00 mi	1.00 mi	5998+219	5366+175	5366+175	2840(Top 10%)	2606(Top 16%)	2606(Top 46%)
40K	24.85 mi	0.85 mi	5774+224	5181+185	5181+185	2294(Top 8%)	2133(Top 13%)	2133(Top 37%)
25.2M	25.20 mi	0.35 mi	5658+116	5088+93	5088+93	1623(Top 6%)	1529(Top 9%)	1529(Top 27%)
FINISH	26.22 mi	1.02 mi	5275+383	4777+311	4777+311	688(Top 2%)	659(Top 4%)	659(Top 12%)

659

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 8 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

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Quick Links

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Course Information

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Results processed 3 months ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Boston Athletic Association

Race timed by

Mika Timing

Justin Zahn

Race Timeline and Course Information

⏱️ Race Timeline

Race Animation with Course Map

Splits & Pacing

Half Splits

Checkpoint Splits

Checkpoint Splits Visualizations

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Rankings

Checkpoint and Segment Rankings

Segment Performance Analysis

10K→15K

5K→10K

10K→15K

15K→20K

20K→HALF

HALF→25K

25K→30K

30K→20M

20M→21M

21M→35K

35K→23M

23M→24M

24M→40K

40K→25.2M

25.2M→FINISH