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Siwen Cui

Bib: 15372•F

0:00

0:00

/ mi

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Overall

#0 / 29021

Top 27%

Gender (Female)

#0 / 12578

Top 10%

Age Group (F18-39)

#0 / 5716

Top 19%

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

22:16

3.11 mi

Rank: #9896

Start → 5K

22:16 | 7:11/mi

22:16

3.11 mi

Rank: #9896

Start → 5K

22:16 | 7:11/mi

10K

44:21

6.21 mi

Rank: #9643 (+253)

5K → 10K

22:05 | 7:07/mi

10K

44:21

6.21 mi

Rank: #9643 (+253)

5K → 10K

22:05 | 7:07/mi

15K

1:06:16

9.32 mi

Rank: #9366 (+277)

10K → 15K

21:55 | 7:04/mi

15K

1:06:16

9.32 mi

Rank: #9366 (+277)

10K → 15K

21:55 | 7:04/mi

20K

1:28:15

12.43 mi

Rank: #9107 (+259)

15K → 20K

21:59 | 7:05/mi

20K

1:28:15

12.43 mi

Rank: #9107 (+259)

15K → 20K

21:59 | 7:05/mi

HALF

1:33:02

13.11 mi

Rank: #9083 (+24)

20K → HALF

4:47 | 7:02/mi

HALF

1:33:02

13.11 mi

Rank: #9083 (+24)

20K → HALF

4:47 | 7:02/mi

25K

1:50:12

15.53 mi

Rank: #8875 (+208)

HALF → 25K

17:10 | 7:05/mi

25K

1:50:12

15.53 mi

Rank: #8875 (+208)

HALF → 25K

17:10 | 7:05/mi

30K

2:12:54

18.64 mi

Rank: #8668 (+207)

25K → 30K

22:42 | 7:19/mi

30K

2:12:54

18.64 mi

Rank: #8668 (+207)

25K → 30K

22:42 | 7:19/mi

20M

2:22:49

20.00 mi

Rank: #8530 (+138)

30K → 20M

9:55 | 7:19/mi

20M

2:22:49

20.00 mi

Rank: #8530 (+138)

30K → 20M

9:55 | 7:19/mi

21M

2:30:18

21.00 mi

Rank: #8368 (+162)

20M → 21M

7:29 | 7:29/mi

21M

2:30:18

21.00 mi

Rank: #8368 (+162)

20M → 21M

7:29 | 7:29/mi

35K

2:35:33

21.75 mi

Rank: #8300 (+68)

21M → 35K

5:15 | 7:02/mi

35K

2:35:33

21.75 mi

Rank: #8300 (+68)

21M → 35K

5:15 | 7:02/mi

23M

2:44:34

23.00 mi

Rank: #8167 (+133)

35K → 23M

9:01 | 7:13/mi

23M

2:44:34

23.00 mi

Rank: #8167 (+133)

35K → 23M

9:01 | 7:13/mi

24M

2:51:32

24.00 mi

Rank: #8045 (+122)

23M → 24M

6:58 | 6:58/mi

24M

2:51:32

24.00 mi

Rank: #8045 (+122)

23M → 24M

6:58 | 6:58/mi

40K

2:57:40

24.85 mi

Rank: #7924 (+121)

24M → 40K

6:08 | 7:11/mi

40K

2:57:40

24.85 mi

Rank: #7924 (+121)

24M → 40K

6:08 | 7:11/mi

25.2M

3:00:20

25.20 mi

Rank: #7883 (+41)

40K → 25.2M

2:40 | 7:44/mi

25.2M

3:00:20

25.20 mi

Rank: #7883 (+41)

40K → 25.2M

2:40 | 7:44/mi

FINISH

3:07:17

26.22 mi

Rank: #7782 (+101)

25.2M → FINISH

6:57 | 6:50/mi

FINISH

3:07:17

26.22 mi

Rank: #7782 (+101)

25.2M → FINISH

6:57 | 6:50/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster

via HALF

Distance13.11 mi

Time1:33:02

Pace7:06 /mi

2nd Half

Spacer

Distance13.11 mi

Time1:34:15

Pace7:12 /mi

📊Positive Split: 1.3% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	10:53:47	22:16	7:11	22:16	7:11	-
10K	6.21 mi	11:15:52	44:21	7:09	22:05	7:07	-0:04
15K	9.32 mi	11:37:47	1:06:16	7:07	21:55	7:04	-0:03
20K	12.43 mi	11:59:46	1:28:15	7:07	21:59	7:05	+0:01
HALF	13.11 mi	12:04:33	1:33:02	7:06	4:47	7:02	-0:03
25K	15.53 mi	12:21:43	1:50:12	7:06	17:10	7:05	+0:03
30K	18.64 mi	12:44:25	2:12:54	7:08	22:42	7:19	+0:14
20M	20.00 mi	12:54:20	2:22:49	7:09	9:55	7:19	0:00
21M	21.00 mi	13:01:49	2:30:18	7:10	7:29	7:29	+0:10
35K	21.75 mi	13:07:04	2:35:33	7:10	5:15	7:02	-0:27
23M	23.00 mi	13:16:05	2:44:34	7:10	9:01	7:13	+0:11
24M	24.00 mi	13:23:03	2:51:32	7:09	6:58	6:58	-0:15
40K	24.85 mi	13:29:11	2:57:40	7:09	6:08	7:11	+0:13
25.2M	25.20 mi	13:31:51	3:00:20	7:10	2:40	7:44	+0:33
FINISH	26.22 mi	13:38:48	3:07:17	7:09	6:57	6:50	-0:54

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

6:50 /mi

Average Pace

7:09 /mi

Slowest Pace

7:44 /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

3:04:37

99% of race

Time at Steady Pace

2:40

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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	10:53:47	22:16	7:11	22:16	7:11	#9896
10K	6.21 mi	11:15:52	44:21	7:09	22:05	7:07	#9643
15K	9.32 mi	11:37:47	1:06:16	7:07	21:55	7:04	#9366
20K	12.43 mi	11:59:46	1:28:15	7:07	21:59	7:05	#9107
HALF	13.11 mi	12:04:33	1:33:02	7:06	4:47	7:02	#9083
25K	15.53 mi	12:21:43	1:50:12	7:06	17:10	7:05	#8875
30K	18.64 mi	12:44:25	2:12:54	7:08	22:42	7:19	#8668
20M	20.00 mi	12:54:20	2:22:49	7:09	9:55	7:19	#8530
21M	21.00 mi	13:01:49	2:30:18	7:10	7:29	7:29	#8368
35K	21.75 mi	13:07:04	2:35:33	7:10	5:15	7:02	#8300
23M	23.00 mi	13:16:05	2:44:34	7:10	9:01	7:13	#8167
24M	24.00 mi	13:23:03	2:51:32	7:09	6:58	6:58	#8045
40K	24.85 mi	13:29:11	2:57:40	7:09	6:08	7:11	#7924
25.2M	25.20 mi	13:31:51	3:00:20	7:10	2:40	7:44	#7883
FINISH	26.22 mi	13:38:48	3:07:17	7:09	6:57	6:50	#7782

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	Females	F18-39	Seg. Overall	Seg. Females	Seg. F18-39
5K	3.11 mi	3.11 mi	9896	1830	1830	8938(Top 31%)	1462(Top 12%)	1462(Top 26%)
10K	6.21 mi	3.10 mi	9643+253	1711+119	1711+119	9463(Top 33%)	1662(Top 13%)	1662(Top 29%)
15K	9.32 mi	3.11 mi	9366+277	1608+103	1608+103	8938(Top 31%)	1462(Top 12%)	1462(Top 26%)
20K	12.43 mi	3.11 mi	9107+259	1524+84	1524+84	8408(Top 29%)	1306(Top 10%)	1306(Top 23%)
HALF	13.11 mi	0.68 mi	9083+24	1511+13	1511+13	8841(Top 30%)	1426(Top 11%)	1426(Top 25%)
25K	15.53 mi	2.42 mi	8875+208	1453+58	1453+58	7987(Top 28%)	1222(Top 10%)	1222(Top 21%)
30K	18.64 mi	3.11 mi	8668+207	1410+43	1410+43	8154(Top 28%)	1432(Top 11%)	1432(Top 25%)
20M	20.00 mi	1.36 mi	8530+138	1380+30	1380+30	7674(Top 26%)	1339(Top 11%)	1339(Top 23%)
21M	21.00 mi	1.00 mi	8368+162	1345+35	1345+35	6406(Top 22%)	998(Top 8%)	998(Top 17%)
35K	21.75 mi	0.75 mi	8300+68	1332+13	1332+13	7291(Top 25%)	1271(Top 10%)	1271(Top 22%)
23M	23.00 mi	1.25 mi	8167+133	1313+19	1313+19	6828(Top 24%)	1163(Top 9%)	1163(Top 20%)
24M	24.00 mi	1.00 mi	8045+122	1284+29	1284+29	6305(Top 22%)	1053(Top 8%)	1053(Top 18%)
40K	24.85 mi	0.85 mi	7924+121	1261+23	1261+23	6610(Top 23%)	1208(Top 10%)	1208(Top 21%)
25.2M	25.20 mi	0.35 mi	7883+41	1261	1261	6703(Top 23%)	1298(Top 10%)	1298(Top 23%)
FINISH	26.22 mi	1.02 mi	7782+101	1249+12	1249+12	6288(Top 22%)	1211(Top 10%)	1211(Top 21%)

1211

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 3 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Activity Data

Upload your GPX file to see detailed activity metrics

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

.gpx files up to 10MB

Export & Support

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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

Siwen Cui

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