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BOSTON MARATHON 2026

Bing Jun Cao

Bib: 18793•M

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0:00
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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
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
5K
24:46
3.11 mi
Rank: #16721
Start → 5K
24:46 | 7:59/mi
10K
48:25
6.21 mi
Rank: #15409 (+1312)
5K → 10K
23:39 | 7:37/mi
15K
1:11:51
9.32 mi
Rank: #14618 (+791)
10K → 15K
23:26 | 7:33/mi
20K
1:36:24
12.43 mi
Rank: #14789 (-171)
15K → 20K
24:33 | 7:55/mi
HALF
1:41:34
13.11 mi
Rank: #14724 (+65)
20K → HALF
5:10 | 7:35/mi
25K
2:00:24
15.53 mi
Rank: #14512 (+212)
HALF → 25K
18:50 | 7:46/mi
30K
2:25:58
18.64 mi
Rank: #14608 (-96)
25K → 30K
25:34 | 8:14/mi
20M
2:38:57
20.00 mi
Rank: #15320 (-712)
30K → 20M
12:59 | 9:34/mi
21M
2:47:52
21.00 mi
Rank: #15311 (+9)
20M → 21M
8:55 | 8:55/mi
35K
2:53:49
21.75 mi
Rank: #15252 (+59)
21M → 35K
5:57 | 7:58/mi
23M
3:04:17
23.00 mi
Rank: #15222 (+30)
35K → 23M
10:28 | 8:22/mi
24M
3:12:33
24.00 mi
Rank: #15235 (-13)
23M → 24M
8:16 | 8:16/mi
40K
3:19:45
24.85 mi
Rank: #15222 (+13)
24M → 40K
7:12 | 8:26/mi
25.2M
3:22:50
25.20 mi
Rank: #15210 (+12)
40K → 25.2M
3:05 | 8:57/mi
FINISH
3:30:52
26.22 mi
Rank: #15169 (+41)
25.2M → FINISH
8:02 | 7:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:34
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:49:18
Pace8:21 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4924:467:5924:46
7:59
-
10K
6.21 mi11:50:2848:257:4823:39
7:37
-0:22
15K
9.32 mi12:13:541:11:517:4323:26
7:33
-0:04
20K
12.43 mi12:38:271:36:247:4624:33
7:55
+0:22
HALF
13.11 mi12:43:371:41:347:455:10
7:35
-0:20
25K
15.53 mi13:02:272:00:247:4618:50
7:46
+0:11
30K
18.64 mi13:28:012:25:587:5025:34
8:14
+0:28
20M
20.00 mi13:41:002:38:577:5712:59
9:34
+1:20
21M
21.00 mi13:49:552:47:528:008:55
8:55
-0:39
35K
21.75 mi13:55:522:53:498:005:57
7:58
-0:57
23M
23.00 mi14:06:203:04:178:0110:28
8:22
+0:24
24M
24.00 mi14:14:363:12:338:028:16
8:16
-0:06
40K
24.85 mi14:21:483:19:458:037:12
8:26
+0:10
25.2M
25.20 mi14:24:533:22:508:033:05
8:57
+0:31
FINISH
26.22 mi14:32:553:30:528:038:02
7:53
-1:04

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

7:33 /mi

Average Pace

8:03 /mi

Slowest Pace

9:34 /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

52:15

25% of race

Time at Steady Pace

1:47:42

51% of race

Time at Slower Pace

50:55

24% of race

Average Pace: 8:03 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:26:4924:467:5924:46
7:59
#16721
10K
6.21 mi11:50:2848:257:4823:39
7:37
#15409
15K
9.32 mi12:13:541:11:517:4323:26
7:33
#14618
20K
12.43 mi12:38:271:36:247:4624:33
7:55
#14789
HALF
13.11 mi12:43:371:41:347:455:10
7:35
#14724
25K
15.53 mi13:02:272:00:247:4618:50
7:46
#14512
30K
18.64 mi13:28:012:25:587:5025:34
8:14
#14608
20M
20.00 mi13:41:002:38:577:5712:59
9:34
#15320
21M
21.00 mi13:49:552:47:528:008:55
8:55
#15311
35K
21.75 mi13:55:522:53:498:005:57
7:58
#15252
23M
23.00 mi14:06:203:04:178:0110:28
8:22
#15222
24M
24.00 mi14:14:363:12:338:028:16
8:16
#15235
40K
24.85 mi14:21:483:19:458:037:12
8:26
#15222
25.2M
25.20 mi14:24:533:22:508:033:05
8:57
#15210
FINISH
26.22 mi14:32:553:30:528:038:02
7:53
#15169
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 mi16721108971089713184(Top 45%)9452(Top 58%)9452(Top 634%)
10K6.21 mi3.10 mi15409+131210380+51710380+51713974(Top 48%)9831(Top 60%)9831(Top 659%)
15K9.32 mi3.11 mi14618+79110059+32110059+32113184(Top 45%)9452(Top 58%)9452(Top 634%)
20K12.43 mi3.11 mi14789-17110113-5410113-5415323(Top 53%)10268(Top 63%)10268(Top 689%)
HALF13.11 mi0.68 mi14724+6510092+2110092+2113622(Top 47%)9655(Top 59%)9655(Top 648%)
25K15.53 mi2.42 mi14512+2129989+1039989+10313549(Top 47%)9460(Top 58%)9460(Top 634%)
30K18.64 mi3.11 mi14608-969988+19988+115112(Top 52%)10024(Top 61%)10024(Top 672%)
20M20.00 mi1.36 mi15320-71210244-25610244-25621262(Top 73%)12698(Top 78%)12698(Top 852%)
21M21.00 mi1.00 mi15311+910205+3910205+3915637(Top 54%)10088(Top 62%)10088(Top 677%)
35K21.75 mi0.75 mi15252+5910173+3210173+3214135(Top 49%)9383(Top 57%)9383(Top 629%)
23M23.00 mi1.25 mi15222+3010137+3610137+3614844(Top 51%)9610(Top 59%)9610(Top 645%)
24M24.00 mi1.00 mi15235-1310121+1610121+1615461(Top 53%)9820(Top 60%)9820(Top 659%)
40K24.85 mi0.85 mi15222+1310103+1810103+1815166(Top 52%)9585(Top 59%)9585(Top 643%)
25.2M25.20 mi0.35 mi15210+1210094+910094+914326(Top 49%)9211(Top 56%)9211(Top 618%)
FINISH26.22 mi1.02 mi15169+4110066+2810066+2814351(Top 49%)9203(Top 56%)9203(Top 617%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21
+97ft-345ft

Overall

13184

Males

9452

M55-59

9452

5K→10K

3.1 - 6.2 mi

Top 48%
×5
+79ft-138ft

Overall

13974

Males

9831

M55-59

9831

10K→15K

6.2 - 9.3 mi

Top 45%
×3
+67ft-78ft

Overall

13184

Males

9452

M55-59

9452

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15323

Males

10268

M55-59

10268

20K→HALF

12.4 - 13.1 mi

Top 47%
×2
+19ft-37ft

Overall

13622

Males

9655

M55-59

9655

HALF→25K

13.1 - 15.5 mi

Top 47%
×4
+66ft-88ft

Overall

13549

Males

9460

M55-59

9460

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15112

Males

10024

M55-59

10024

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21262

Males

12698

M55-59

12698

20M→21M

20.0 - 21.0 mi

Top 54%
×8
+106ft-24ft

Overall

15637

Males

10088

M55-59

10088

21M→35K

21.0 - 21.8 mi

Top 49%
×7
+17ft-86ft

Overall

14135

Males

9383

M55-59

9383

35K→23M

21.8 - 23.0 mi

Top 51%
×5
+23ft-63ft

Overall

14844

Males

9610

M55-59

9610

23M→24M

23.0 - 24.0 mi

Top 53%
×6
+12ft-82ft

Overall

15461

Males

9820

M55-59

9820

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

15166

Males

9585

M55-59

9585

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1
+13ft-16ft

Overall

14326

Males

9211

M55-59

9211

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
×2
+22ft-21ft

Overall

14351

Males

9203

M55-59

9203

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3352*
Passed By
1127
Net Change
+1552
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16721
5K → 10K1334*22+1312#16721#15409
10K → 15K813*22+791#15409#14618
15K → 20K114200-171#14618#14789
20K → HALF727+65#14789#14724
HALF → 25K254*42+212#14724#14512
25K → 30K169200-96#14512#14608
30K → 20M11200-712#14608#15320
20M → 21M112103+9#15320#15311
21M → 35K9031+59#15311#15252
35K → 23M10070+30#15252#15222
23M → 24M6881-13#15222#15235
24M → 40K8370+13#15235#15222
40K → 25.2M3523+12#15222#15210
25.2M → FINISH9756+41#15210#15169
TOTALS3352*1127+1552

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing