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BOSTON MARATHON 2025

Bing Jun Cao

Bib: 16081•M

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0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:45
Rank: #16320
Start → 5K
24:45 | 7:58/mi
10K· 6.21 mi
49:32
Rank: #16265 (+55)
5K → 10K
24:47 | 7:59/mi
15K· 9.32 mi
1:14:13
Rank: #16024 (+241)
10K → 15K
24:41 | 7:57/mi
20K· 12.43 mi
1:38:53
Rank: #15608 (+416)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:44:21
Rank: #15622 (-14)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
2:03:50
Rank: #15338 (+284)
Half → 25K
19:29 | 8:02/mi
30K· 18.64 mi
2:30:00
Rank: #15115 (+223)
25K → 30K
26:10 | 8:25/mi
20M
2:41:29
Rank: #14933 (+182)
30K → 20M
11:29 | 8:27/mi
21M
2:50:37
Rank: #14842 (+91)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
2:56:53
Rank: #14803 (+39)
21M → 35K
6:16 | 8:23/mi
23M
3:07:58
Rank: #14823 (-20)
35K → 23M
11:05 | 8:51/mi
24M
3:16:52
Rank: #14905 (-82)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:24:41
Rank: #14998 (-93)
24M → 40K
7:49 | 9:09/mi
25.2M
3:28:12
Rank: #15044 (-46)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:37:06
Rank: #15154 (-110)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:21
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:2524:457:5824:45
7:58
-
10K
6.21 mi11:24:1249:327:5824:47
7:59
+0:01
15K
9.32 mi11:48:531:14:137:5824:41
7:57
-0:02
20K
12.43 mi12:13:331:38:537:5724:40
7:56
-0:01
Half
13.11 mi12:19:011:44:217:585:28
8:01
+0:05
25K
15.53 mi12:38:302:03:507:5819:29
8:02
+0:01
30K
18.64 mi13:04:402:30:008:0326:10
8:25
+0:23
20M
20.00 mi13:16:092:41:298:0411:29
8:27
+0:02
21M
21.00 mi13:25:172:50:378:079:08
9:08
+0:41
35K
21.75 mi13:31:332:56:538:086:16
8:23
-0:45
23M
23.00 mi13:42:383:07:588:1011:05
8:51
+0:28
24M
24.00 mi13:51:323:16:528:128:54
8:54
+0:03
40K
24.85 mi13:59:213:24:418:147:49
9:09
+0:15
25.2M
25.20 mi14:02:523:28:128:163:31
10:12
+1:03
Finish
26.22 mi14:11:463:37:068:178:54
8:44
-1:28

Checkpoints & Pacing

📈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

7:56 /mi

Average Pace

8:17 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:50

57% of race

Time at Steady Pace

43:55

20% of race

Time at Slower Pace

49:21

23% of race

Average Pace: 8:17 /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.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:59:2524:457:5824:45
7:58
#16320
10K
6.21 mi11:24:1249:327:5824:47
7:59
#16265
15K
9.32 mi11:48:531:14:137:5824:41
7:57
#16024
20K
12.43 mi12:13:331:38:537:5724:40
7:56
#15608
Half
13.11 mi12:19:011:44:217:585:28
8:01
#15622
25K
15.53 mi12:38:302:03:507:5819:29
8:02
#15338
30K
18.64 mi13:04:402:30:008:0326:10
8:25
#15115
20M
20.00 mi13:16:092:41:298:0411:29
8:27
#14933
21M
21.00 mi13:25:172:50:378:079:08
9:08
#14842
35K
21.75 mi13:31:332:56:538:086:16
8:23
#14803
23M
23.00 mi13:42:383:07:588:1011:05
8:51
#14823
24M
24.00 mi13:51:323:16:528:128:54
8:54
#14905
40K
24.85 mi13:59:213:24:418:147:49
9:09
#14998
25.2M
25.20 mi14:02:523:28:128:163:31
10:12
#15044
Finish
26.22 mi14:11:463:37:068:178:54
8:44
#15154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16320109301093015604(Top 55%)10644(Top 66%)10644(Top 646%)
10K6.21 mi3.10 mi16265+5510911+1910911+1916281(Top 57%)10936(Top 68%)10936(Top 664%)
15K9.32 mi3.11 mi16024+24110817+9410817+9415604(Top 55%)10644(Top 66%)10644(Top 646%)
20K12.43 mi3.11 mi15608+41610632+18510632+18514438(Top 51%)10063(Top 62%)10063(Top 611%)
Half13.11 mi0.68 mi15622-14106321063215937(Top 56%)10740(Top 67%)10740(Top 652%)
25K15.53 mi2.42 mi15338+28410496+13610496+13614171(Top 50%)9840(Top 61%)9840(Top 597%)
30K18.64 mi3.11 mi15115+22310339+15710339+15714270(Top 50%)9718(Top 60%)9718(Top 590%)
20M20.00 mi1.36 mi14933+18210233+10610233+10613467(Top 47%)9204(Top 57%)9204(Top 558%)
21M21.00 mi1.00 mi14842+9110165+6810165+6814255(Top 50%)9458(Top 59%)9458(Top 574%)
35K21.75 mi0.75 mi14803+3910136+2910136+2914703(Top 52%)9585(Top 60%)9585(Top 582%)
23M23.00 mi1.25 mi14823-2010117+1910117+1915385(Top 54%)9805(Top 61%)9805(Top 595%)
24M24.00 mi1.00 mi14905-8210113+410113+416829(Top 59%)10384(Top 64%)10384(Top 630%)
40K24.85 mi0.85 mi14998-9310124-1110124-1117057(Top 60%)10398(Top 65%)10398(Top 631%)
25.2M25.20 mi0.35 mi15044-4610125-110125-117824(Top 63%)10726(Top 67%)10726(Top 651%)
Finish26.22 mi1.02 mi15154-11010152-2710152-2717648(Top 62%)10701(Top 66%)10701(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15604

Males

10644

M55-59

10644

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16281

Males

10936

M55-59

10936

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15604

Males

10644

M55-59

10644

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14438

Males

10063

M55-59

10063

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

15937

Males

10740

M55-59

10740

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14171

Males

9840

M55-59

9840

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

14270

Males

9718

M55-59

9718

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13467

Males

9204

M55-59

9204

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14255

Males

9458

M55-59

9458

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14703

Males

9585

M55-59

9585

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15385

Males

9805

M55-59

9805

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16829

Males

10384

M55-59

10384

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17057

Males

10398

M55-59

10398

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17824

Males

10726

M55-59

10726

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17648

Males

10701

M55-59

10701

Passing Analysis

Category:
Athletes Passed
2534
Passed By
1368
Net Change
+1166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16320
5K → 10K317262+55#16320#16265
10K → 15K346105+241#16265#16024
15K → 20K45135+416#16024#15608
20K → Half2842-14#15608#15622
Half → 25K32238+284#15622#15338
25K → 30K343120+223#15338#15115
30K → 20M22644+182#15115#14933
20M → 21M15564+91#14933#14842
21M → 35K7940+39#14842#14803
35K → 23M108128-20#14803#14823
23M → 24M51133-82#14823#14905
24M → 40K39132-93#14905#14998
40K → 25.2M2773-46#14998#15044
25.2M → Finish42152-110#15044#15154
TOTALS25341368+1166
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing