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Xuchu Cai

Bib: 12791•M

0:00

0:00

/ mi

Masters

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Overall

#0 / 29021

Gender (Male)

#0 / 16340

Masters (Masters Men)

#0 / 10617

Age Group (M45-49)

#0 / 2413

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

24:59

3.11 mi

Rank: #17228

Start → 5K

24:59 | 8:03/mi

24:59

3.11 mi

Rank: #17228

Start → 5K

24:59 | 8:03/mi

10K

51:24

6.21 mi

Rank: #18859 (-1631)

5K → 10K

26:25 | 8:31/mi

10K

51:24

6.21 mi

Rank: #18859 (-1631)

5K → 10K

26:25 | 8:31/mi

15K

1:17:08

9.32 mi

Rank: #18858 (+1)

10K → 15K

25:44 | 8:17/mi

15K

1:17:08

9.32 mi

Rank: #18858 (+1)

10K → 15K

25:44 | 8:17/mi

20K

1:44:00

12.43 mi

Rank: #19188

15K → 20K

26:52 | 8:39/mi

20K

1:44:00

12.43 mi

Rank: #19188

15K → 20K

26:52 | 8:39/mi

HALF

1:49:44

13.11 mi

Rank: #19209

20K → HALF

5:44 | 8:25/mi

HALF

1:49:44

13.11 mi

Rank: #19209

20K → HALF

5:44 | 8:25/mi

25K

2:10:31

15.53 mi

Rank: #19174

HALF → 25K

20:47 | 8:35/mi

25K

2:10:31

15.53 mi

Rank: #19174

HALF → 25K

20:47 | 8:35/mi

30K

2:39:28

18.64 mi

Rank: #19535

25K → 30K

28:57 | 9:20/mi

30K

2:39:28

18.64 mi

Rank: #19535

25K → 30K

28:57 | 9:20/mi

20M

2:52:27

20.00 mi

Rank: #19700

30K → 20M

12:59 | 9:34/mi

20M

2:52:27

20.00 mi

Rank: #19700

30K → 20M

12:59 | 9:34/mi

21M

3:02:48

21.00 mi

Rank: #19839

20M → 21M

10:21 | 10:21/mi

21M

3:02:48

21.00 mi

Rank: #19839

20M → 21M

10:21 | 10:21/mi

35K

3:09:39

21.75 mi

Rank: #19874

21M → 35K

6:51 | 9:10/mi

35K

3:09:39

21.75 mi

Rank: #19874

21M → 35K

6:51 | 9:10/mi

23M

3:21:47

23.00 mi

Rank: #20007

35K → 23M

12:08 | 9:42/mi

23M

3:21:47

23.00 mi

Rank: #20007

35K → 23M

12:08 | 9:42/mi

24M

3:31:21

24.00 mi

Rank: #20098

23M → 24M

9:34 | 9:34/mi

24M

3:31:21

24.00 mi

Rank: #20098

23M → 24M

9:34 | 9:34/mi

40K

3:39:48

24.85 mi

Rank: #20172

24M → 40K

8:27 | 9:53/mi

40K

3:39:48

24.85 mi

Rank: #20172

24M → 40K

8:27 | 9:53/mi

25.2M

3:43:50

25.20 mi

Rank: #20270

40K → 25.2M

4:02 | 11:42/mi

25.2M

3:43:50

25.20 mi

Rank: #20270

40K → 25.2M

4:02 | 11:42/mi

FINISH

3:54:06

26.22 mi

Rank: #20487

25.2M → FINISH

10:16 | 10:05/mi

FINISH

3:54:06

26.22 mi

Rank: #20487

25.2M → FINISH

10:16 | 10:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster

via HALF

Distance13.11 mi

Time1:49:44

Pace8:23 /mi

2nd Half

Spacer

Distance13.11 mi

Time2:04:22

Pace9:30 /mi

📊Positive Split: 13.3% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	10:53:21	24:59	8:03	24:59	8:03	-
10K	6.21 mi	11:19:46	51:24	8:17	26:25	8:31	+0:28
15K	9.32 mi	11:45:30	1:17:08	8:17	25:44	8:17	-0:14
20K	12.43 mi	12:12:22	1:44:00	8:23	26:52	8:39	+0:22
HALF	13.11 mi	12:18:06	1:49:44	8:23	5:44	8:25	-0:14
25K	15.53 mi	12:38:53	2:10:31	8:25	20:47	8:35	+0:10
30K	18.64 mi	13:07:50	2:39:28	8:34	28:57	9:20	+0:45
20M	20.00 mi	13:20:49	2:52:27	8:38	12:59	9:34	+0:14
21M	21.00 mi	13:31:10	3:02:48	8:43	10:21	10:21	+0:47
35K	21.75 mi	13:38:01	3:09:39	8:44	6:51	9:10	-1:11
23M	23.00 mi	13:50:09	3:21:47	8:47	12:08	9:42	+0:32
24M	24.00 mi	13:59:43	3:31:21	8:49	9:34	9:34	-0:08
40K	24.85 mi	14:08:10	3:39:48	8:51	8:27	9:53	+0:19
25.2M	25.20 mi	14:12:12	3:43:50	8:53	4:02	11:42	+1:49
FINISH	26.22 mi	14:22:28	3:54:06	8:57	10:16	10:05	-1:37

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

8:03 /mi

Average Pace

8:56 /mi

Slowest Pace

11:42 /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

2:10:31

56% of race

Time at Steady Pace

1:10:29

30% of race

Time at Slower Pace

33:06

14% of race

Average Pace: 8:56 /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	10:53:21	24:59	8:03	24:59	8:03	#17228
10K	6.21 mi	11:19:46	51:24	8:17	26:25	8:31	#18859
15K	9.32 mi	11:45:30	1:17:08	8:17	25:44	8:17	#18858
20K	12.43 mi	12:12:22	1:44:00	8:23	26:52	8:39	#19188
HALF	13.11 mi	12:18:06	1:49:44	8:23	5:44	8:25	#19209
25K	15.53 mi	12:38:53	2:10:31	8:25	20:47	8:35	#19174
30K	18.64 mi	13:07:50	2:39:28	8:34	28:57	9:20	#19535
20M	20.00 mi	13:20:49	2:52:27	8:38	12:59	9:34	#19700
21M	21.00 mi	13:31:10	3:02:48	8:43	10:21	10:21	#19839
35K	21.75 mi	13:38:01	3:09:39	8:44	6:51	9:10	#19874
23M	23.00 mi	13:50:09	3:21:47	8:47	12:08	9:42	#20007
24M	24.00 mi	13:59:43	3:31:21	8:49	9:34	9:34	#20098
40K	24.85 mi	14:08:10	3:39:48	8:51	8:27	9:53	#20172
25.2M	25.20 mi	14:12:12	3:43:50	8:53	4:02	11:42	#20270
FINISH	26.22 mi	14:22:28	3:54:06	8:57	10:16	10:05	#20487

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	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	3.11 mi	17228	11114	11114	18866(Top 65%)	11824(Top 72%)	11824(Top 490%)
10K	6.21 mi	3.10 mi	18859-1631	11789-675	11789-675	20350(Top 70%)	12485(Top 76%)	12485(Top 517%)
15K	9.32 mi	3.11 mi	18858+1	11813-24	11813-24	18866(Top 65%)	11824(Top 72%)	11824(Top 490%)
20K	12.43 mi	3.11 mi	19188-330	11942-129	11942-129	20149(Top 69%)	12359(Top 76%)	12359(Top 512%)
HALF	13.11 mi	0.68 mi	19209-21	11952-10	11952-10	19704(Top 68%)	12207(Top 75%)	12207(Top 506%)
25K	15.53 mi	2.42 mi	19174+35	11920+32	11920+32	18996(Top 65%)	11796(Top 72%)	11796(Top 489%)
30K	18.64 mi	3.11 mi	19535-361	12048-128	12048-128	21005(Top 72%)	12662(Top 77%)	12662(Top 525%)
20M	20.00 mi	1.36 mi	19700-165	12104-56	12104-56	21269(Top 73%)	12705(Top 78%)	12705(Top 527%)
21M	21.00 mi	1.00 mi	19839-139	12153-49	12153-49	21528(Top 74%)	12797(Top 78%)	12797(Top 530%)
35K	21.75 mi	0.75 mi	19874-35	12166-13	12166-13	20624(Top 71%)	12295(Top 75%)	12295(Top 510%)
23M	23.00 mi	1.25 mi	20007-133	12209-43	12209-43	21234(Top 73%)	12557(Top 77%)	12557(Top 520%)
24M	24.00 mi	1.00 mi	20098-91	12238-29	12238-29	21542(Top 74%)	12641(Top 77%)	12641(Top 524%)
40K	24.85 mi	0.85 mi	20172-74	12253-15	12253-15	21585(Top 74%)	12616(Top 77%)	12616(Top 523%)
25.2M	25.20 mi	0.35 mi	20270-98	12301-48	12301-48	23861(Top 82%)	13694(Top 84%)	13694(Top 568%)
FINISH	26.22 mi	1.02 mi	20487-217	12398-97	12398-97	24028(Top 83%)	13801(Top 84%)	13801(Top 572%)

13801

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 2 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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Export & Support

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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

Xuchu Cai

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

Passing

Passing Analysis

Activity Data

Export & Support

Export Track Data

Questions or issues regarding timing data?

Quick Links

All Results

Race Analytics

Course Information

Contact Time Management

Public Race Data