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BOSTON MARATHON 2026

Cao Xiaojing

Bib: 16970β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51Β°/41Β°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
5K
23:27
3.11 mi
Rank: #13172
Start β†’ 5K
23:27 | 7:33/mi
10K
47:21
6.21 mi
Rank: #13913 (-741)
5K β†’ 10K
23:54 | 7:42/mi
15K
1:12:19
9.32 mi
Rank: #15064 (-1151)
10K β†’ 15K
24:58 | 8:03/mi
20K
1:38:16
12.43 mi
Rank: #16067 (-1003)
15K β†’ 20K
25:57 | 8:22/mi
HALF
1:43:50
13.11 mi
Rank: #16203 (-136)
20K β†’ HALF
5:34 | 8:10/mi
25K
2:04:33
15.53 mi
Rank: #16700 (-497)
HALF β†’ 25K
20:43 | 8:33/mi
30K
2:33:30
18.64 mi
Rank: #17608 (-908)
25K β†’ 30K
28:57 | 9:20/mi
20M
2:46:22
20.00 mi
Rank: #17891 (-283)
30K β†’ 20M
12:52 | 9:29/mi
21M
2:56:35
21.00 mi
Rank: #18118 (-227)
20M β†’ 21M
10:13 | 10:13/mi
35K
3:02:56
21.75 mi
Rank: #18095 (+23)
21M β†’ 35K
6:21 | 8:30/mi
23M
3:14:17
23.00 mi
Rank: #18137 (-42)
35K β†’ 23M
11:21 | 9:05/mi
24M
3:23:13
24.00 mi
Rank: #18188 (-51)
23M β†’ 24M
8:56 | 8:56/mi
40K
3:31:02
24.85 mi
Rank: #18216 (-28)
24M β†’ 40K
7:49 | 9:09/mi
25.2M
3:34:21
25.20 mi
Rank: #18197 (+19)
40K β†’ 25.2M
3:19 | 9:38/mi
FINISH
3:43:03
26.22 mi
Rank: #18188 (+9)
25.2M β†’ FINISH
8:42 | 8:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:50
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:59:13
Pace9:06 /mi
πŸ“ŠPositive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:5623:277:3323:27
7:33
-
10K
6.21 mi11:28:5047:217:3823:54
7:42
+0:09
15K
9.32 mi11:53:481:12:197:4624:58
8:03
+0:21
20K
12.43 mi12:19:451:38:167:5525:57
8:22
+0:19
HALF
13.11 mi12:25:191:43:507:565:34
8:10
-0:12
25K
15.53 mi12:46:022:04:338:0220:43
8:33
+0:23
30K
18.64 mi13:14:592:33:308:1528:57
9:20
+0:47
20M
20.00 mi13:27:512:46:228:2012:52
9:29
+0:09
21M
21.00 mi13:38:042:56:358:2510:13
10:13
+0:44
35K
21.75 mi13:44:253:02:568:256:21
8:30
-1:43
23M
23.00 mi13:55:463:14:178:2711:21
9:05
+0:35
24M
24.00 mi14:04:423:23:138:298:56
8:56
-0:09
40K
24.85 mi14:12:313:31:028:307:49
9:09
+0:13
25.2M
25.20 mi14:15:503:34:218:313:19
9:38
+0:29
FINISH
26.22 mi14:24:323:43:038:318:42
8:33
-1:05

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

7:33 /mi

Average Pace

8:31 /mi

Slowest Pace

10:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

1:17:53

35% of race

Time at Steady Pace

1:01:43

28% of race

Time at Slower Pace

1:23:27

37% of race

Average Pace: 8:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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.

Loading...
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

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:04:5623:277:3323:27
7:33
#13172
10K
6.21 mi11:28:5047:217:3823:54
7:42
#13913
15K
9.32 mi11:53:481:12:197:4624:58
8:03
#15064
20K
12.43 mi12:19:451:38:167:5525:57
8:22
#16067
HALF
13.11 mi12:25:191:43:507:565:34
8:10
#16203
25K
15.53 mi12:46:022:04:338:0220:43
8:33
#16700
30K
18.64 mi13:14:592:33:308:1528:57
9:20
#17608
20M
20.00 mi13:27:512:46:228:2012:52
9:29
#17891
21M
21.00 mi13:38:042:56:358:2510:13
10:13
#18118
35K
21.75 mi13:44:253:02:568:256:21
8:30
#18095
23M
23.00 mi13:55:463:14:178:2711:21
9:05
#18137
24M
24.00 mi14:04:423:23:138:298:56
8:56
#18188
40K
24.85 mi14:12:313:31:028:307:49
9:09
#18216
25.2M
25.20 mi14:15:503:34:218:313:19
9:38
#18197
FINISH
26.22 mi14:24:323:43:038:318:42
8:33
#18188
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi131729536953617287(Top 60%)11143(Top 68%)11143(Top 747%)
10K6.21 mi3.10 mi13913-7419822-2869822-28614681(Top 51%)10125(Top 62%)10125(Top 679%)
15K9.32 mi3.11 mi15064-115110224-40210224-40217287(Top 60%)11143(Top 68%)11143(Top 747%)
20K12.43 mi3.11 mi16067-100310606-38210606-38218420(Top 63%)11589(Top 71%)11589(Top 777%)
HALF13.11 mi0.68 mi16203-13610663-5710663-5718175(Top 63%)11521(Top 71%)11521(Top 773%)
25K15.53 mi2.42 mi16700-49710864-20110864-20118808(Top 65%)11714(Top 72%)11714(Top 786%)
30K18.64 mi3.11 mi17608-90811239-37511239-37521001(Top 72%)12658(Top 77%)12658(Top 849%)
20M20.00 mi1.36 mi17891-28311322-8311322-8320937(Top 72%)12541(Top 77%)12541(Top 841%)
21M21.00 mi1.00 mi18118-22711393-7111393-7121097(Top 73%)12581(Top 77%)12581(Top 844%)
35K21.75 mi0.75 mi18095+2311369+2411369+2417487(Top 60%)10806(Top 66%)10806(Top 725%)
23M23.00 mi1.25 mi18137-4211371-211371-218824(Top 65%)11371(Top 70%)11371(Top 763%)
24M24.00 mi1.00 mi18188-5111373-211373-219144(Top 66%)11488(Top 70%)11488(Top 770%)
40K24.85 mi0.85 mi18216-2811376-311376-319016(Top 66%)11365(Top 70%)11365(Top 762%)
25.2M25.20 mi0.35 mi18197+1911360+1611360+1617821(Top 61%)10825(Top 66%)10825(Top 726%)
FINISH26.22 mi1.02 mi18188+911338+2211338+2218337(Top 63%)11049(Top 68%)11049(Top 741%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
Γ—21
+97ft-345ft

Overall

17287

Males

11143

M55-59

11143

5K→10K

3.1 - 6.2 mi

Top 51%
Γ—5
+79ft-138ft

Overall

14681

Males

10125

M55-59

10125

10K→15K

6.2 - 9.3 mi

Top 60%
Γ—3
+67ft-78ft

Overall

17287

Males

11143

M55-59

11143

15K→20K

9.3 - 12.4 mi

Top 63%
Γ—5
+106ft-86ft

Overall

18420

Males

11589

M55-59

11589

20K→HALF

12.4 - 13.1 mi

Top 63%
Γ—2
+19ft-37ft

Overall

18175

Males

11521

M55-59

11521

HALF→25K

13.1 - 15.5 mi

Top 65%
Γ—4
+66ft-88ft

Overall

18808

Males

11714

M55-59

11714

25K→30K

15.5 - 18.6 mi

Top 72%
Γ—9
+181ft-148ft

Overall

21001

Males

12658

M55-59

12658

30K→20M

18.6 - 20.0 mi

Top 72%
Γ—5
+64ft-50ft

Overall

20937

Males

12541

M55-59

12541

20M→21M

20.0 - 21.0 mi

Top 73%
Γ—8
+106ft-24ft

Overall

21097

Males

12581

M55-59

12581

21M→35K

21.0 - 21.8 mi

Top 60%
Γ—7
+17ft-86ft

Overall

17487

Males

10806

M55-59

10806

35K→23M

21.8 - 23.0 mi

Top 65%
Γ—5
+23ft-63ft

Overall

18824

Males

11371

M55-59

11371

23M→24M

23.0 - 24.0 mi

Top 66%
Γ—6
+12ft-82ft

Overall

19144

Males

11488

M55-59

11488

24M→40K

24.0 - 24.9 mi

Top 66%
Γ—1
+6ft-20ft

Overall

19016

Males

11365

M55-59

11365

40K→25.2M

24.9 - 25.2 mi

Top 61%
Γ—1
+13ft-16ft

Overall

17821

Males

10825

M55-59

10825

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
Γ—2
+22ft-21ft

Overall

18337

Males

11049

M55-59

11049

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
683
Passed By
5699
Net Change
-5016
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#13172
5K β†’ 10K82823-741#13172#13913
10K β†’ 15K301181-1151#13913#15064
15K β†’ 20K271030-1003#15064#16067
20K β†’ HALF9145-136#16067#16203
HALF β†’ 25K52549-497#16203#16700
25K β†’ 30K50958-908#16700#17608
30K β†’ 20M37320-283#17608#17891
20M β†’ 21M33260-227#17891#18118
21M β†’ 35K5835+23#18118#18095
35K β†’ 23M82124-42#18095#18137
23M β†’ 24M51102-51#18137#18188
24M β†’ 40K5684-28#18188#18216
40K β†’ 25.2M3718+19#18216#18197
25.2M β†’ FINISH7970+9#18197#18188
TOTALS6835699-5016
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing